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377° FASCICULE HOMOPTERA
GENERA.
INSECTORUM
DIRIGES PAR
P.WYTSMAN
HOMOPTERA
FAM. ALEYRODIDÆ
by A.L. QUAINTANCE
1908
Prix : FR. 7.70
On souscrit chez M. P. Wytsman, Zoologiste, 43, rue Saint-Alphonse, à Bruxelles
Prospectus gratis et franco sur demande.
CIEL A
^
HOMOPTERA
FAM. ALEYRODIDÆ
ao
MUSEUM ORAS URS NS
NSOIEILK JARI AL
HOMOPTERA
FAM. ALEYRODIDE
by A. L. QUAINTANCE
WITH 2 COLOURED PLATES
HE Aleyrodide occupy a systematic position between the Aphidide and Coccidæ, and in
N Ey the immature stages are at times mistaken for members of these families, and of the
Psyllidæ. Upon careful examination, however, characteristic structures will be found, by
4M, which the members of the Aleyrodide may be positively identified. While the bibliography
of this family is fairly extensive, the earlier writings are of comparatively little importance from a
systematic standpoint. Prior to Latreille, the insects were referred by writers to such genera as Timea,
Phelena, Chermes, etc. The genus Aleyrodes was established by Latreille (1) and was placed with the
Aphidide, to which family it was subsequently referred and to the Coccide by various writers until 1840.
Westwood (2), in 1840, in reviewing the genus established the family Aleyrodide, the then single
genus Aleyrodes constituting the type genus. Signoret (3) gave the first comprehensive revision of the
family in 1867, in his Essai monographique sur les Aleurodes, in which 23 species were treated, six being
described as new. This valuable paper has constituted the principal basis for subsequent workers.
In 1892, the genus Aleurodicus was erected by Douglas (4) for a species from Demerara, described
as anonæ, by Morgan, who also transferred to the new genus the Aleyrodes coccois of Curtis, also from
Demerara. Maskell (5) in 1896, catalogued the species of the world, giving descriptions of 22 new
forms, bringing the number up to 66, four belonging to Aleurodicus. The American species were
treated by the writer (6) in 1900, 52 being listed, 18 of which were described as new. In 1902,
(1) Mag. Encycl. Vol. 2, p. 304 (1795); Précis des Caractères des Insectes, p. 93 (1796); Gen. Crust. et Ins. Vol. 3, p. 173 (1807).
(2) Modern Classification of Insects, Vol. 2, p. 442 (1840).
(2) Essai Monographique sur les Aleurodes, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 369-402 (1867).
(4) Ent. Mo. Mag. (2), Vol. 3, p. 29-33 (1892).
(5) Contributions toward a monograph of the A/enrodidae (Trans. New Zealand Institute, Vol. 28, p. 411-449 (1805).
(6) Contributions toward a monograph of the American Aleurozidae (Bull.8, Tech. Ser. Div. Ent. U. S. Dept. Agri. Washington, p.9-48 (1900).
HOMOPTERA
Cockerell (1) catalogued the species of the world according to their geographical distribution, and
proposed subgenera Dialeurodicus for Aleurodicus, with A. cockerelli, Quaintance as type; and for
Aleyrodes, subgenera Asterochiton, Dialeurodes. Trialeurodes and Tetraleurodes, with Aleyrodes aureus, Maskell;
A. citri, Riley and Howard; A. pergandei, Quaintance; and A. perileuca, Cockerell as types respectively.
A valuable paper by Peal (2) was published in 1903 on the known Oriental species of the family in
which 16 forms are listed for that region, seven being described as new. The Aleyrodids of California
were treated in 1904 by Florence E. Bemis (3), with references to other American species. In the paper
cited, 23 species are recorded for the State, 19 of which were described as new.
In 1907, a catalogue of the species of the world, by G. W. Kirkaldy, was published, with descrip-
tions of six new species by Jacob Kotinsky (4). Also in 1907, Albert Tullgren established a new genus,
Aleurochiton, with Aleyrodes acerıs Geoffroy as type, presenting also detailed descriptions of Aleyrodes pro-
letella Linné; A. brassicae, Walker; A. fragariae, Walker and Aleurochiton aceris, Geoffroy (5).
The specific characters in Aleyrodes are determined mainly from the so-called « pupa case », the
adults in this genus being remarkably similar in structure and coloration except those species with
spotted or banded wings. In Aleurodicus, the adults are likely to vary more but in this genus also the
pupa case offers good diagnostic characters. In characterizing species of this family, descriptions should
be made of as many stages as possible, as the egg, pupa case, and adults. Certain species may be sepa-
rated with certainty only after a comparison of all these stages. Many descriptions, especially of the older
writers, are too incomplete to permit of the positive identification of their species.
To any one who has given even casual attention to this family, it will at once be evident that the
present list of species for the world represents but a small fraction of those which exist. It is hoped that
entomologists, especially those in tropical and sub-tropical parts of the world will interest themselves in
this very interesting family.
Directions for collecting. — In collecting specimens of Aleyrodidae, special attention should
be given to securing adult as well as immature stages. If leaves infested with pupa be placed in suitable
jars for a few days, adults may often thus be secured. Frequently adults may be found in abundance on
the more tender growth of plants infested by the immature stages. After necessary live notes as to
color, etc., have been made, abundant specimens should be preserved in thin xylol balsam mounts on
slides. It is often necessary to boil in KOH3 the darker larvæ and pupa cases, before mounting, to render
their structure discernible, as in the case of coccids. Leaves infested with immature stages also should
be preserved in a way to keep intact the waxy secretion, often of much importance in making prelimi-
nary determinations. Adults may be preserved dry in suitable vials and held in place with bits of cotton,
or mounted on « points » as 1s done in the case of various minute insects.
Economic species. — But few species of this family rank as serious pests, but the injuries of
some are quite important. Aleyrodes citri, Riley and Howard, is perhaps the principal pest of the orange
at the present time in Florida, and has been lately introduced into California. This species has been
well treated by Riley and Howard (6) and by H. A. Gossard (7). Aleyrodes bergit, Signoret, A. lacteae,
Zehntner and A. longicornis, Zehntner are all destructive to sugar cane in Java, and have been carefully
1) The Classification of the Alewrodidae (Proc. Acad. Nat. Sc. Philad. Vol. 54, p. 279-283 (1902).
2) Contributions toward a Monograph of the oriental .4/ezexodzdae (Journ. Asiat. Soc. Bengal, Vol. 62, p. 61-98 (1903).
(3) The Aleyrodids or mealy-winged flies of California (Proc. U. S. Nat. Mus. Vol. 27, p. 471-537 (1904.
(4) A catalogue of the Hemipterous family A/eyrodidae and Aleyrodidae of Hawaii (Bull. 2, Div. of Ent. Board of Com. of Agric. and Forestry
of Territory of Hawaii (1907).
(5) Ueber einige Arten der Familie Alexrodidae, Arkiv. för Zoologi, Stockholm, Bd. 3, N° 26 (1907).
(6) Insect Life, Vol. 5, p. 219-226 (1893).
7) Bull. 67, Florida Agric. Exper. Station (1903).
FAM. ALEYRODID/E 3
studied by Dr. L. Zehntner (1). Aleyrodes tabaci, Gennadios, a pest of tobacco in Greece, has been well
treated by Targioni-Tozzetti (2). Aleyrodes vaporariorum, Westwood, is quite destructive to vegetables and
flowers grown under glass and to a less extent out-of doors in the United States, and possibly elsewhere.
This insect has been thoroughly treated by Morrill (3) who has also treated a related species, A. fackardr,
Morrill, which is injurious to strawberries. Aleurodicus cocos, Curtis, infesting the cocoanut, guava, etc.,
is the subject of an article by Riley and Howard in Insect Life(4).
FAM. ALEYRODIDA, WESTWOOD
Aleyrodidae. Latreille, Mag. Encycl. Vol. 2. p. 304 (1795); Précis Caractéres Insectes, p. 93 (1796);
Genera Crustac. et Insect. Vol. 3, p. 174 (1807); Westwood, Mod. Class. of Ins. Vol. 2, p. 442
(1840); Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 369-402 (1867); Maskell, Trans. New Zealand
Inst. Vol. 22, p. 170-176 (1889); Morgan, Ent. M. Mag. (2) Vol. 3, p. 29-33 (1892); Maskell,
Trans. New Zealand Inst. Vol. 28, p. 411-449 (1895); Quaintance, Bull. 8, Tech. Ser. Div.
Ent. U.S. Dept. Agr. Wash. (1900); Cockerell, Proc. Acad. Nat. Sc. Philad. Vol. 54, p. 279-283
(1902); Peal, Journ. Asıat. Soc. Bengal, Vol. 72, N. S.p. 61-98 (1903); Bemis, Proc. U. S. Nat.
Mus. Vol. 27, p. 471-537 (1904); Tullgren, Arkiv f. Zool. Stockholm, Bd. 3, Nr. 26, p. 1-18 (1907);
Kirkaldy & Kotinsky, Bul. 2, Div. Ent. Board Com. Agric. and Forestry Territory Hawaii,
p. 1-101 (1907).
Characters. — Small to minute insects, infesting plants, the immature stages scale like, the
adults of both sexes winged, active, powdered with white,
In adults, head small, convex above, rounded anteriorly ; eyes reniform, « dumb-bell » shape, or
completely divided; a single ocellus above each eve. Antennae 7-jointed, basal joint short and cup-shaped;
second larger, globose or subpyriform; joints 3 to 7 slender and numerously ringed, joint 3 longest.
Rostrum ot a single segment. Mentum long, free, 3-jointed, inclosing the rostral setae. Thoracic segments
about equally distinct, the prothorax smallest. Each sex with two pairs of wings, rounded distally, and
serrate or « beaded » all around, each serrulation with a few minute hairs. Wings with but a single median
vein; a single basal branch.in fore wing in Aleyrodes, a basal and distal branch in fore and hind wings in
Aleurodicus, and in Aleurochiton there is a basal and a distal branch in fore wings, the vein of the hind wing
being unbranched. Legs long, slender, with dimerous tarsi, ending in 2 claws, and a central process.
Abdomen somewhat pedunculate, especially in males, roundly tapering or ovoid, in females ending in
conical ovipositor. In male abdomen more slender, ending in forcipate genitalia, composed of two valves,
and the central, curved, penis. On dorsum of last abdominal segment of each sex, is the so-called
« vasiform orifice, » comprising the orifice, the operculum, and the lingula. General color of body yellow,
often with dusky markings, but all more or less obscured with the powdery dusting of white wax.
Immature stages elliptical, oval or rounded in shape, quiescent except in first larval, occurring
mostly on lower, less usually on upper surface of leaves, to which they are attached by sucking mouth-
(x) Archief Java Suikerindustrie. 14, p. 039 (1896); Vol. 7, p. 445 and 450
(2) Animali ed Ensetti del Tabacco, p. 246 (1801).
(3) Bull. r, Tech. Ser. Massachussets Agric. Exper. Station (1903).
(4) Insect Life, Vol. 5, p. 314 (1893).
4 HOMOPTERA
parts. In earlier stages, mostly flat, in pupating becoming more convex or in some species raised on a
beautiful palisade all around of white wax. Pupa case usually with spines or hairs though some of these
are often obscure. There is usually more or less of waxy secretion from a marginal rim of wax tubes and
often also from dorsum of case, in the shape of rods, or asbestiform, powdery, wooly or flocculent wax,
usually of characteristic pattern. and sometimes so copious as to cover the insect. A distinctly Aleyrodid
character in the larval and pupal stages is the presence on the dorsum of last abdominal segment of a
rounded, ovoid or semielliptical opening. the « vasiform orifice », consisting, as stated for the adult, of
the orifice, operculum, and lingula. This is the excretory opening, and from the lingula a sweetish fluid
is voided. These structures vary much with different species and consequently furnish valuable diagnostic
characters.
Eggs are ellipsoidal, often curved, or flattened on one side, attached firmly to leaf with a short stalk;
surface either smooth, or showing minute polygonal markings.
SYNOPSIS OF GENERA
Vein of fore wing with single basal branch; hind wing with single vein. 1. Genus ALEYROoDES, Latreille.
Vein of fore wing with basal and distal branches; hind wing with
singlevem » : 2. v 2 ne ww S S. Ix T IST SERA GEHUSPATEUROCHUTLON Inllarene
Vein of fore and hind wings each with basal and distal branches . . 3. Genus ALEURODICUS, Douglas.
Il. GENUS ALEYRODES, LATREILLE (:)
Aleyrodes, Latreille (1795).
Type species: A. proletella. Linné — A. chelidonii. Latreille.
Subgenera : Asterochiton. Cockerell, type A. aureus. Maskell.
Dialeurodes. Cockerell, type A, citri. Riley & Howard.
Trialeurodes. Cockerell, type A, pergandei, Ouaintance.
Tetraleurodes, Cockerell. tvpe A. perileuca, Cockerell.
Characters. — Adults with but a single branch to vein of fore wing, arising at véry, base, or
often apparently distinct. Hind wings with but a single vein.. Pupa case without compound pores, and
lingula usually not prominently protruding from vasiform vein orifice as in Aleurodicus.
Geographical distribution of species. — The genus Aleyrodes is cosmopolitan, and a few
species are becoming widely distributed, transported no doubt from one country to another on their
food plants, as in the case of species of Coccide. Conditions are much less favorable for their dissemina-
tion, however, since Aleyrodids infest exclusively the leaves of plants which in most cases are largely,
if not entirely, removed before shipment. Aleyrodes vaporariorum, Westwood occurs rather generally over
Europe and America, and is recorded from Hawaii; A. citri, abundant in the Southern United States,
occurs also in California, Cuba, Mexico. Brazil, China and possibly Chile. Careful investigation would
probably show that some of the species infesting economic plants are much more widely distributed
than is at present known to be the case.
The great majority of species are yet known only from the country from whence described,
though in some instances they have evidently been there introduced, their nativity, however, being at
(1) Greek, aZezzon, floury or mealy. The name of the genus, originally spelled by Latreille 47eyrodes, was later spelled Alewrodes, following
apparently a note by Burmeister (Handb. Ent. Vol. 2, p. 82, 1835, « Latreille's Orthographie Aleyrodes muss in A/eurodes verwandelt werden », who,
however, presented no reason for this change, and which seems to have been unwarranted. Also, writers on this genus have not been agreed as to the
gender of Aleyrodes and there is consequently lack of uniformity in case ending of specific names. In this list, the original orthography is preserved.
FAM. ALEYRODID/E
Cn
present unknown. Including native and introduced species, the number recorded from the several
regions is as follows : Australasian region, 21; Aethiopian region, 2; Oriental region, 15; Palaeartic
region, 32; Neartic region, 53; Neotropical region, 13; Unattached region. 5.
M
ini
12%
Woe
I4.
19%
16.
=
17.
18.
19.
20.
2I.
22
23%
24.
25.
26.
275
28.
29.
50%
Shite
32%
59:
34.
39%
36.
I:
38.
o wt
> à à À À À A
90»
AO ho à À à à à
> à à > à à à Ps à
> à
D m m m à AAR à
One fossil species is known : À. aculeatus, from Prussian amber, Ligurian Horizon.
. abnormis, Quaintance, Bull. 8. Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 17 (1900)
( Florida).
. abutilonea, Haldeman, Amer. Journ. Sc. and Arts, Vol. 9, p. 108 (1850) (Eastern United States :
Pennsylvania to Florida). — Pl. I, Fig. 4, 5, 5a, 5b, 5c; Pl. 2, Fig. 6.
syn. fitcht, Quaintance.
. acaciae, Quaintance, Bull. 8, Tech. Ser. Div. Ent.'U. S. Dept. Agric. Wash. p. 19 (1900) (Cali-
fornia, Mexico).
. acteae, Britton, Ent. News, Philad. Vol. 16, p. 5 (1905) (Connecticut). .
. aépim, Goeldi, Mittheil. Schweiz. Ent. Ges. Vol. 7. p. 250 (1886) (Brazil : Rio de Janeiro).
. alcocki, Peal, Journ. Asiat. Soc. Bengal, Vol. 72, p. 74 (1903) (India).
. amnicola, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 514 (1904) (California).
. asparagi, Lewis, Journ. Quekett Microsc. Club, Vol. 6 (2), p. 88 (1895) (Natal).
. asplenti, Maskell, Trans. New Zealand Inst. Vol. 22, p. 173 (1889) (New Zealand).
. (Asterochiton) aureus, Maskell, ibidem, Vol. 22, p. 174 (1889); ibidem, Vol. 2, p. 215 (1879) (New
Zealand).
syn. melicyti, Maskell.
. auvantu, Maskell, ibidem, Vol. 28, p. 431 (1895) (India).
. aureocincta, Cockerell, Journ. New York Ent. Soc. Vol. 5. p. 42 (1897) (New Mexico).
. avellanae, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 385 (1867) (France).
. bambusae, Peal, Journ. Asiat. Soc. Bengal. Vol. 72, p. 85 (1903) (India).
. banksiae, Maskell, Trans. New Zealand Inst. Vol. 28, p. 423 (1895) (Australia).
. barodensis, Maskell, ibidem, Vol. 28. p. 424 (1895) (India).
. bengalensis, Peal, Journ. Asiat. Soc. Bengal, Vol. 72, p. 70 (1903) (India).
. berbericola, Cockerell, Journ. New York Ent. Soc. Vol. 4, p. 207 (1896) (New Mexico).
. bergit, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 395 (1867) (Isle of Maurice, Java, Fiji, Levuka,
Rena).
. brassicae, Walker. Cat. Homopt. Brit. Mus. p. 1092 (1852) (Europe).
. calophylli, Kotinsky, Bull. 2. Div. Ent. Board Com. Agric. and Forestry Hawaii, p. 98 (1907)
(Fiji).
. capreae, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 384 (1867) (France).
. carpini, Koch, Die Pflanzenlause Aphiden, p. 327 (1857) (Europe).
. cevata, Maskell, Trans. New Zealand Inst. Vol. 28, p. 425 (1895) (New Zealand).
. citri, Riley & Howard, Insect Life, Vol. 5, p. 219 (1893) (United States : Florida, Georgia,
Alabama, Louisiana, Texas, California; Cuba, Chile (?), China). — Pl. I, Fig. 2, 3a, 3b, 3c.
. cockerelli, Ihering, Rev. Museu Paulista, N. 2, p. 393 (1897) (Brazil).
. comata, Maskell, Trans. New Zealand Inst., Vol. 28, p. 426 (1895) (Fiji).
. (Lecanium) complanatum (Bärensprung) D'Alton & Burmeister, Zeit. f. Zool. Vol. ı, p. 169 (1849);
Spec. Bull. 88, Massachussets Agric. Exper. Station, p. 330 (1903) (Germany).
. cort, Haldeman, Amer. Journ. Sc. and Arts, Vol. 9, p. 109 (1850) (Pennsylvania).
. coronata, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash., p. 22 (1900)
(California).
. coryli, Brittón, Ent. News, Philad. Vol. 18, p. 337 (1907) (Connecticut).
. cotes, Maskell, Trans. New Zealand Inst. Vol. 28, p. 427 (1895) (Baluchistan).
. croceata. Maskell, ibidem, Vol. 28, p. 428 (1895) (Australia).
. decipiens, Maskell, ibidem, p. 428 (1895) (Australia).
. diasemus, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 516 (1904) (California).
. dorseyt, Kirkaldy (A. quaintancei, Bemis) Proc. U. S. Nat. Mus. Vol. 27. p. 520 (1904) (California).
. dubia, Heeger, Beitr. Naturg. Ins. p. 223(1858) (Austria, Germany).
. erigerontis, Maskell, Trans. New Zealand Inst. Vol. 28. p. 429 (1895) (Mexico).
6
3074;
40. À.
41. À
p
4924
44. A.
45. A
46. A
47. À
48. A
49. A
50. A
SIA
SLA
DS]
54. A
S55 7
56. A
577. vd
58. A
59. A
60. A
61. À
624
6524
64. À
0524
66. A
75071
68. A
69. A
70. A
To ZA
TA
TA
74. A
TO A
76. A
77- A
79-4
79. A
80. A
HOMOPTERA
errans, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 500 (1904) (California).
eugeniae, Maskell, Trans. New Zealand Inst. Vol. 28, p. 430 (1895) (India).
. euphorbiae, Loew, Vehr. Zool.-bot. Ges. Wien, Vol. 17, p. 746 (1867) (Austria).
. extraniens, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 526 (1904) (New Zealand).
4. fagi, Maskell, Trans. New Zealand Inst. Vol. 22, p. 175 (1889) (New Zealand).
fernaldi, Morrill. Psyche, Vol. 10, p. 83 (1903) (Massachusetts, Connecticut).
. fijiensis, Kotinsky, Bull. 2, Div. Ent. Board Com. Agric. and Forestry. Hawaii, p. 100 (1907) (Fiji.
. flicium, Goeldi, Mittheil. Schweiz. Ent. Ges.Vol. 7, p. 248 (1886) (Brazil : Rio de Janeiro; Kew
Gardens).
. floccosa, Maskell, Trans. New Zealand Inst. Vol. 28, p. 432 (1895) (Jamaica. Mexico).
. floridensis, Quaintance, Bull. 8, Tech. Ser., Div. Ent. U. S. Dept. Agric. Wash. p. 26 (1900)
(Florida |.
. fodiens, Maskell, Trans. New Zealand Inst. Vol. 28. p. 433 (1895) (New Zealand).
. forbes, Ashmead, Fourteenth Rept. Illinois State Entomol. p. 110 (1884); Also Monogr. N.
Amer. Proctotrypidæ, Bull. 45, U. S. Nat. Mus. p. 294 (Eastern United States).
syn. A. aceris, Forbes.
. fragariae, Walker, List. Homopt. Brit. Mus. p. 1092 (1851); Also Ann. Soc. Ent. Fr. (4), Vol. 8,
p. 383 (1867) (England, France).
. fraxim, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 386 (1867) (France).
. fumipennis. Hempel, Psyche, Vol. 8, p. 394 (1899) (Brazil).
. gelatinosus, Cockerell, The Canad. Entom. Vol. 3o, p. 264 (1898) (New Mexico, California).
. giffardi, Kotinsky. Bull.2, Div. Ent. Board. Com. Agricand Forestry, Hawaii, p. 94(1907) ( Hawaii).
. glacialis, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 518 (California).
. (Aspidiotus) gossypü, Fitch, Third Rep. Nox. and other Ins. New York, p. 332 (1857) (China :
Ningpo).
. goyabae, Goeldi, Mittheil. Schweiz. Ent. Ges. Vol. 7, p. 248 (1886) (Brazil : Rio de Janeiro).
. graminicola, Quaintance, The Canad. Entom. Vol 31. p. 89 (1899) (Florida).
. hibisci, Kotinsky, Bull. 2, Div. Ent. Board. Com. Agric. and Forestry Hawaii, p. 96 (1907)
(Hawaii).
. hirsuta, Maskell, Trans. New Zealand Inst. Vol. 28, p. 434 (1895) (Australia).
. horridus, Hempel, Psyche, Vol. 8, p. 394 (1899) (Brazil).
. howardi, Quaintance, Bull. 12, Tech.Ser. Bur. Ent. U. S. Dept. Agric. Wash. p. gt (1907) (Cuba).
. hutchingsi, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 532 (1904) (California).
. hoyae, Peal, Journ. Asiat. Soc. Bengal, Vol. 72, p. 88 (1903) (India).
. immaculata, Heeger. Beitr. Naturg. Ins. p. 1 (1855) (Europe).
. Inconspicua, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric Wash. p. 29 (1900)
(Florida). =
. interrogationis, Bemis, Proc. U S. Nat. Mus. Vol. 27, p. 510 (1904) (California).
. tridescens, Bemis, ibidem, Vol. 27, p. 487 (1904) (California).
. Jelinekii. Frauenfeld, Verh. Zool.-bot. Ges. Wien, p. 799 (1867) (France. Austria).
. kelloggi, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 499 (1904) (California).
. kirkaldyi, Kotinsky, Bull. 2,
Div. Ent. Board. Com. Agric. and Forestry. Hawail p. 95 (1907)
(Hawail).
. lacerdae, Signoret, Ann. Soc. Ent. Fr. Pt. 2. p. 72 (1883) (France).
. lactea, Zehntner, Mededeeleng Proefstat. Oost- Java, n. s. 37, p. 34 (1897), also Arch. Java Suiker-
ind., Vol. 7, p. 459 (1897) (Java).
. lauri, Signoret, Ann. Soc. Ent. Fr. Pt. 2, p. 158 (1881) (Greece):
. (Asterochiton) lecanioides, Maskell, Trans. New Zealand Inst. Vol. 22, p. 173 and 176 (1889);
ibidem, Vol. 11. p. 215 (1878) (New-Zealand).
syn. papillifer, Maskell.
. leakii, Peal, Journ. Asiat. Soc. Bengal, Vol. 72. p. 87 (1903) (India, Fiji).
. limbata, Maskell, Trans. New Zealand Inst. Vol, 28. p. 436 (1895) (Australia).
. lonicerae, Walker, Cat. Homopt. Brit. Mus. p. 1092 (1852) (Europe).
. longicornis, Zehntner, Arch. Java Suiker Ind, Vol. 5, p. 381 (1897) (Java).
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
94-
95.
96.
97.
98.
99.
100.
IOI.
IO2.
103.
104.
To5%
106.
107.
108.
109.
IIO.
TT
112.
TT:
114.
LI
116.
117%
118.
112106).
120;
121.
122.
123.
FAM. ALEYRODIDE 7
. madroni, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 507 (1904) (California).
. marlatti, Quaintance, The Canad. Entom, Vol. 34, p. 61 (1902) (Japan).
. maskelli, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 524 (1904) (California).
. melanops, Cockerell, Bull. Florida Exper. Station, No. 67, p. 665 (1903) (California).
. merlini, Bemis. Proc. U. S. Nat. Mus. Vol. 27. p. 512 (1904) (California).
. mori, Quaintance. The Canad. Entom. Vol. 31, p. 1 (1899) (Eastern United States). — Pl. I,
Figs eta, lb.
a) mori arizonensis, Cockerell, Science Gossip, Vol. 6 n. s. p. 366 (1900) (Arizona).
b) mori maculata, Morrill, Psyche, Vol. 10, p. 81 (1903) (Massachussetts).
A. morrilli, Britton, Ent. News Philad. Vol. 18. p. 340 (1907) (Connecticut).
A. nephrolepidis, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 29 (1900)
(Pennsylvania in conservatory).
A: nicotianae, Maskell, Trans. New Zealand Inst. Vol. 28, p. 436 (1895) (Mexico).
A. niger, Maskell, ibidem, Vol. 28 p. 437 (1895) (Australia).
A. nigrans, Bemis. Proc. U. S. Nat. Mus. Vol 27, p. 522 (1904) (California).
A. nubilans, Buckton, Indian Museum Notes, Vol. 5, p. 36 (1900) (India).
A. packardi, Morrill. The Canad. Entom. Vol. 35, p. 25 (1903) (Eastern United States).
A
A
DM à à à à à
. parvus, Hempel, Psyche, Vol. 8, p. 395 (1899) (Brazil).
. pergandei. Quaintance, Bull. 8, Tech. Ser Div. Ent. U. S. Dept. Agric. Wash. p. 31 (1900)
(Eastern United States). — PI. 2, Fig. 7.
A. periluca, Cockerell, Bull. Florida Exper. Station, No. 67. p. 664 (1903) (California, Texas).
À. phalaenoides, Blanchard, Historia Fisca y Polit de Chile, Zoologia, Vol. 7, p. 317 (1840) (Chile).
À. phillyreae, Haliday, The Ent. Mag. Vol. 2, p. 119 (1834) (Europe).
À. piperis, Maskell, Trans New Zealand Inst. Vol. 28. p. 438 (1895) (Ceylon).
À. plumosa, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 33 (1900)
(Florida).
À. prenanthis, Schrank, Fauna Boica, Vol. 2. p. 147 (1801) (Germany).
A. proletella, Linne, Syst. Nat. (Ed. 10). p. 537 (1758) (Europe).
proletella, Latreille, Mag. Encycl Vol. 2. p. 304 ( Ne
syn. chelidonit, Latreille.
A. pruinosus, Bemis, Proc. U. S. Nat. Mus. Vol. 27. p. 491 (1904) (California). — Pl. 2, Fig. 8.
A. prrolae, Gillette & Baker, Bull. 31, Colorado Agric. Exper. Station, Tech. Ser. p. 125 (1895)
(Colorado).
A. quaintancei, Peal, Journ. Asiat. Soc. Bengal, Vol. 72. p. 78 (1903) (India).
A. quercus, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 384 (1867) (France, England).
A. quercus-aquaticae. Ouaintance, Bull. 5, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 35(1900).
(Florida).
. religiosa, Peal, Journ. Asiat. Soc. Bengal, Vol. 72, p. 67 (1903) (India).
. ribium, Douglas, Ent. M. Mag. Vol. 24, p. 265 (1888); ibidem, p. 255 (1899) (England).
. rolfsti, Quaintance, The Canad. Entom. Vol. 31, p. go (1899) (Florida).
. rubi, Signoret, Ann. Soc. Ent. Fr. (4), Vol. 8, p. 382 (1867) (France).
. rubicola, Douglas, Ent. M. Mag. (2), Vol. 2. p. 322 (1891) (England).
. ruborum, Cockerell, Journ. New York Ent. Soc. Vol. 5, p. 9 (1897) (Florida).
. sacchari, Maskell, Trans. New Zealand Inst. Vol. 22, p. 171 (1899) (Fiji).
. simplex, Maskell, ibidem. Vol. 22, p. 175 (1889) (New Zealand).
. simula, Peal, Journ. Asiat. Soc. Bengal, Vol. 72, p. 81 (1903) (India).
. soncht, Kotinsky, Bull. 2, Div. Ent. Board. Com. Agric. and Forestry, Hawaii, p. 97(1907)(Hawaii).
A. spinifera, Quaintance, The Canad. Entom. Vol. 34, p. 63 (1902) (Java).
A. spiraeae. Douglas, Ent. M. Mag. (2) Vol. 5, p. 73 and p. 154 (1894) (England).
A. spiraeoides, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 36 (1900)
(California).
A. splendens, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 489 (1904) (California).
A. stànfordi, Bemis, ibidem, Vol. 27, p. 508 (1904) (California).
A. stellata, Maskell, Trans. New Zealand Inst. Vol. 28, p. 442 (1895) (Australia).
> à à ADA BRA RA
[9 0]
HOMOPTERA
124. A. struthanthi, Hempel, Ann. Mag. Nat. Hist. (7) Vol. 7, p. 387 (1901) (Brazil).
125. A. stypheliae, Maskell, Trans. New Zealand Inst. Vol. 28, p. 442 (1895) (Australia).
126. A. tabacı, Gennadios, Agricolt. Ellenica (Gennaio) (1889); also Targioni- Tozetti, Animali ed Ensetti
del Tobacco, p. 246 (1892) (Greece).
127. A. tentaculatus. Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 494 (1904) (California).
128. A. tinaeoides, Blanchard, Hist. Fisica y Polit. de Chile, Zoologia, Vol. 7, p. 320 (1840) (Chile).
129. A. T-signata, Maskell, Trans. New Zealand Inst. Vol. 28. p 447 (1895) (Australia).
130. A. tracheifer, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agr. Wash. p. 38 (1900) (Mexico).
131. A. vaccinii, Künow, Ent. Nachr. Vol. 6, p. 48 (1880) (Germany).
132. A. vaporariorum, Westwood, The Gardener's Chronicle, p. 852 (1856).( Thought to be native of Brazil;
now quite generally distributed in Europe and America, occurring mostly in conservatories;
also in Hawaii).
133. A. variabilis, Quaintance. Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 39 (1900)
(Florida).
134. A. vinsontoides, Cockerell, Psyche, Vol. 8, p. 225 (1898) (Mexico).
135. A. vitrinellus, Cockerell, Ent. News, Philad. Vol. 14, p. 241 (1903) (Mexico).
136. A. vitiata, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 42 (1900) (Cali-
fornia).
137. A. voelizkowi, Newstead, Quarterly Journ. Liverpool, Vol. 3, p. 12 (1908) (Madagascar).
138. A. waldeni, Britton, Ent. News, Philad. Vol. 18, p. 339 (1907) (Connecticut).
140. A. xylostei, Westhoff, Jahresb. Zool. Westfäl. Verein, p. 61 (1886) (Germany).
A
A
139. A. wellmanae, Bemis, Proc. U. S. Nat. Mus. Vol. 27, p. 525 (1904) (California).
A
A. youngi, Hempel, Ann. Mag. Nat. Hist. (7), Vol. 8. p. 385 (1901) (Brazil).
I4I.
2. GENUS ALEUROCHITON, TULLGREN
Aleurochiton. Tullgren, Arkiv f. Zool, Stockh. Bd. 3, N. 26, p. 14 (1907).
Chermes aceris ovatus. Geoffroy, Hist. des Insectes, Vol. 1, p. 509 (1762).
Aleyrodes aceris. Bärensprung, D'Alton & Burmeister, Zeit. f. Zool. Vol. 1, p. 176 (1849).
Type : A. aceris, Geoffroy.
Characters. — Vein of fore wing, with a basal and distal branch; in hind wing, vein not bran-
ched. Genus intermediate between Aleyrodes and Aleurodicus.
Geographical distribution of species. — Only one species from Europe.
1. A. (Aleyrodes) aceris, Geoffroy, Tullgren, Arkiv f. Zool., Stockh., Bd. 3, N. 26, p. 14 (1907) (Europe).
— Pl. 2, Fig. 9, 9a, 9b, 9c, 9d.
3. GENUS ALEURODICUS, DouGLAS
Aleurodicus. Douglas, Ent. M. Mag. (2), Vol. 3, p. 32 (1892).
Type : A. anonae, Morgan.
Subgenus : Dialeurodicus, Cockerell.
Type : A. cockerelli, Quaintance.
Characters. — With a basal and distal branch to vein in both fore and hind wings. Pupa-case
with compound pores on dorsum; lingula large, protuding.
Geographical distribution of species. — With the exception of A. holmesü, which occurs in
Fiji, and probably there introduced on its food plant Psidium, from the West Indies, species of Aleuro-
FAM. ALEYRODIDÆ 9
dicus are thus far known only from the warmer parts of America (Florida, West Indies, Mexico,
Brazil, etc.). A. asarumis, from northern United States, (Illinois) and referred to this genus by Riley and
Howard, will when rediscovered doubtless prove to be an Aleyrodes, as originally described by Shimer.
D: 4.
De Ae
3. 4:
A Ar
93 9
> à à à
(Aleyrodes) altissima, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 20
(1900) ( Mexico). "
anonae, Morgan, Ent. M. Mag. (2) Vol. 3, p. 34 (1892) (Demerara, Brazil, British Guiana. Trinidad,
Martinique, Florida).
(Aleyrodes) asarumis, Shimer, Trans. Amer. Ent. Soc. Vol. 1, p. 281 (1867) (Illinois).
cockerelli, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 45 (1900);
Ann. Mag. Nat. Hist. (7). Vol. 8, p. 387 (1901) (Brazil).
. cocots, Curtis, The Gardener's Chronicle, p. 284 (1846) (Barbados, British Honduras, British
Guiana, Trinidad, Venezuela, Brazil). — Pl. 2, Fig. lO, I la-i.
. dugesii, Cockerell, The Canad. Entom. Vol. 28, p. 3o2 (1896) (Mexico).
. (Aleyrodes) holmesii, Maskell, Trans. New Zealand Inst. Vol. 28, p. 435 (1895) (Fiji).
. tridescens, Cockerell, Psyche, Vol. 8, p. 226 (1898) Mexico).
. Jamaicensis, Cockerell, Proc. Acad Natur, Sc. Philad. Vol. 54, p. 280 (1902) (Jamaica).
. minima, Quaintance, Bull. 8, Tech. Ser. Div. Ent. U. S. Dept. Agric. Wash. p. 47 (1900) (Puerto
Rico).
. mirabilis, Cockerell, Psyche, Vol. 8, p. 225 (1898); ibidem, p. 360 (1899) (Mexico).
. ornatus, Cockerell, Ent. M. Mag. (2), p. 105 (1893) (Jamaica).
. (Aleyrodes) perseae, Quaintance, Bull. 8, Tech. Ser. Div. U. S. Dept. Agric. Wash. p. 32 (1900)
( Florida).
. (Aleyrodes) pulvinata, Maskell, Trans. New Zealand Inst. Vol. 28, p. 439 (1895) (Trinidad).
INDEX
Pages. Pages. Pages.
abnormis, Quaint. (g. Aleyrodes) 5 bambusae, Peal (g. Aleyrodes) 5 coronata, Quaint. /g. Aleyrodes 5
abutilonea, Hald. (g. Aleyrodes) 5 banksiae. Mask. (g. Aleyrodes) 5 croceata, Mask. (g. Aleyrodes) 5
acaciae, Quaint. (g. Aleyrodes) 5 barodensis, Mask. (g. Aleyrodes) 5 cotesii, Mask. (g. Aleyrodes) 5
aceris, Geoff. (g. Aleurochiton) 5 bengalensis, Peal (g. Aleyrodes) 5
acteae, Britt. (g. Aleyrodes) 3 berbericola, Ckll (g. Aleyrodes) 5 decipiens, Mask. (g. Aleyrodes) 5
aépim, Goeldi (g. Aleyrodes) 5 bergii, Sign. (g. Aleyrodes) 5 Dialeurodes (subgenus), Ckll 4
alcocki, Peal (g. Aleyrodes) 5 brassicae, Walk. (g. Aleyrodes) 5 Dialeurodicus (subgenus), Ckll 8
Aleurochiton (genus), Tullgr. 8 diasemus, Bem. (g. Aleyrodes) 5
Aleurodicus (genus), Doug]. 8 callophylli, Kot. (g. Aleyrodes) 5 dorseyi, Kirk. (g. Aleyrodes) 5
Aleyrodes (genus), Latr. 4 capreae, Sign. (g. Aleyrodes) 5 dubia, Heeg. (g. Aleyrodes) 5
altissima, Quaint. (g. Aleurodicus) 9 carpini, Koch (g. Aleyrodes) 5 dugesii, Ckll (g. Aleurodicus) 9
amnicola, Bem. (g. Alevrodes) 5 cerata, Mask. (g. Aleyrodes) 5 erigerontis, Mask. (g. Aleyrodes) 5
anonae, Morg. (g. Aleurodicus) 9 chelidonii, Latr. (g. Aleyrodes) 7 errans, Bem. (g. Aleyrodes) 6
asarumis, Shim. (g. Aleurodicus) 9 citri, Ril. & How. (g. Aleyrodes) 5 eugeniae, Mask. (g. Aleyrodes) 9
asparagi, Lew. (g. Aleyrodes) 5 cockerelli, Iher. (g. Aleyrodes) 5 euphorbiae, Loew (g. Aleyrodes) 6
asplenii, Mask. (g. Aleyrodes) 5 cockerelli, Quaint. (g. Aleurodicus) 9 extraniens, Bem. (g. Aleyrodes) 6
Asterochiton (subgenus), Cock. 4 cocois, Curt. (g. Aleurodicus) 9
aurantii, Mask. /g. Aleyrodes) 5 comata, Mask. (g. Aleyrodes) 5 fagi, Mask. (g. Aleyrodes 6
aureocincta, Ckll (g. Aleyrodes) 5 complanatum, Bárensprung fernaldi, Morr. (g. Aleyrodes) 6
aureus, Mask. (g. Aleyrodes) 5 (g. Aleyrodes) 5 fijiensis, Kot. (g. Aleyrodes) 6
avellanae, Sign. (g. Aleyrodes) 5 coryli, Britt. (g. Aleyrodes) 5 filicium, Goeldi (g. Aleyrodes) 6
IO
Pages.
flocossa, Mask. (g. Aleyrodes)
floridensis, Quaint. (g. Aleyrodes)
fodiens, Mask. (g. Aleyrodes)
forbesii, Ashm. (g. Aleyrodes)
fragariae, Walk. (g. Aleyrodes)
fraxini, Sign. (g. Aleyrodes)
fumipennis, Hemp. (g. Aleyrodes)
gelatinosus, Cckll (g. Aleyrodes)
giffardi, Kot. (g. Aleyrodes)
glacialis, Bem. tg. Aleyrodes)
gossypii, Fitch (g. Aleyrodes)
goyabae, Goeldi (g. Aleyrodes)
eraminicola, Quaint. (g. Aleyrodes)
hibisci, Kot. (g. Aleyrodes)
hirsuta, Mask. (g. Aleyrodes)
holmesii, Mask. (g. Aleurodicus)
horridus, Hemp. (g. Aleyrodes)
howardi, Quaint. (g. Aleyrodes)
hoyae, Peal (g. Aleyrodes)
hutchingsi, Bem. (g. Aleyrodes)
immaculata, Heeg. (g. Aleyrodes)
inconspicua, Quaint. (g. Aleyrodes)
interrogationis, Bem. (g. Aleyrodes)
iridescens, Bem. (g. Aleyrodes)
iridescens, Ckll (g. Aleurodicus)
jamaicensis, Ckll (g. Aleurodicus)
jelinekii, Frauenf. (g. Aleyrodes)
kelloggi, Bem. (g. Aleyrodes)
kirkaldyi. Kot. (g. Aleyrodes)
lacerdae, Sign. (g. Aleyrodes)
lactea, Zehnt. (g. Aleyrodes)
lauri, Sign. (g. Aleyrodes)
leakii, Peal (g. Aleyrodes)
lecanioides, Mask. (g. Aleyrodes)
limbata, Mask. (g. Aleyrodes)
© Oy oy OOo N N O aA © A A aA O00 A A DADA 0 O
fon)
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HOMOPTERA
Pages.
longicornis, Zehnt. (g. Aleyrodes) 6
lonicerae, Walk. (g. Alevrodes) 6
madroni, Bem. (sg. Aleyrodes) 7
marlatti, Ouaint. (g. Aleyrodes) 7
maskelli, Bem. (g. Aleyrodes) 7
melanops, Ckll (g. Aleyrodes) 7
merlini, Bem. (g. Aleyrodes) 7
minima, Quaint. (g. Aleurodicus) 9
mirabilis, Ckll (g. Aleudoricus) 9
mori, Quaint. (g. Aleyrodes 7
mori arizonensis, Ckll (e. Aleyrodes) 7
mori maculata, Morr. (g. Aleyrodes) 7
morrilii, Britt. (g. Aleyrodes) 7]
nephrolepidis, Quaint. (g. Aleyrodes) 7
nicotianae, Mask. (g. Aleyrodes) 7
niger, Mask. (g. Aleyrodes) 7
nigrans, Bem. (g. Aleyrodes) 7
nubilans. Buckt. (g. Aleyrodes) 7
ornatus, Ckll (g. Aleurodicus) 9
packardi, Morr. (g. Aleyrodes) 7
parvus, Hemp. (g. Aleyrodes) 7
pergandei, Quaint. (g. Aleyrodes) 7
perileuca, Ckll (g. Aleyrodes) 7
perseae, Quaint. (g. Aleurodicus) 9
phalaenoides, Blanch. (g. Aleyrodes) 7
phillyreae, Hal. (g. Aleyrodes) 7
plumosa, Quaint. (g. Aleyrodes) 7
piperis, Mask. (g. Aleyrodes) 7
prenanthis, Schrank (g. Aleyrodes) 7
proletella, Linné (g. Aleyrodes) 7
pruinosus, Bem. (g. Aleyrodes) 7]
pulvinata, Mask. (g. Aleurodicus) 9
pyrolae, Gill. & Bak. (g. Aleyrodes) 7
quaintancei, Peal (g. Aleyrodes) 7
quercus, Sign. (g. Aleyrodes) 7
quercus-aquaticae, Quaint. (g. Aley-
rodes)
Pages.
religiosa, Peal (g. Alevrodes)
ribium, Dougl. (g. Aleyrodes)
rolfsii, Quaint. (g. Aleyrodes)
rubi, Sign. (g. Aleyrodes)
rubicola, Dougl. (g. Aleyrodes)
ruborum, Ckll (g. Aleyrodes)
sacchari, Mask. (g. Aleyrodes)
simplex, Mask. (g. Alevrodes)
simula. Peal (g. Aleyrodes)
sonchi, Kot. (g. Aleyrodes)
spinifera, Quaint. (g. Aleyrodes)
spiraeae, Doug. (g. Aleyrodes)
spiraeoides, Quaint. (g. Aleyrodes)
splendens, Bem. (g. Alevrodes)
stanfordi, Bem. (g. Aleurodes)
stellata, Mask. (g. Aleyrodes)
struthanthi, Hemp. (g. Aleyrodes)
stypheliae. Mask. (g. Aleyrodes)
tabaci, Genn. (g. Aleyrodes)
tentaculatus, Bem. (g. Aleyrodes)
Tetraleurodes (subgenus), Ckll
tracheifer, Ouaint. (g. Aleyrodes)
Trialeurodes (subgenus), Ckll
t-signata, Mask. (g. Aleyrodes)
vaccinii, Künow (sg. Aleyrodes)
vaporariorum, Westw. (g Aleyrodes)
variabilis, Quaint. (g. Aleyrodes)
vinsonioides, Ckll (g. Aleyrodes)
vitrinellus, Ckll (g. Aleyrodes)
vittata, Quaint. (g. Aleyrodes)
voeltzkowi, Newst. (g. Aleyrodes)
waldeni, Britt. (g. Aleyrodes)
wellmannae, Bem. (g. Aleyrodes)
xylostei, Westh. (g. Aleyrodes)
youngi, Hemp. (g. Aleyrodes)
(eo) Ei, AQ mA (Mp cj cQ Mo SS Sen a S s
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FAM. ALEYRODID/E II
EXPLANATION OF PLATES
PrAnET
Fig. 1. Aleyrodes morı, Quaintance. Pupa case.
— 1a, Aleyrodes mori, Quaintance. Egg.
— 1b. Aleyrodes mori, Quaintance. Antenna of adult.
— 2. Aleyrodes citri, Riley & Howard. Pupa case.
— 3. Aleyrodes citri, Riley & Howard.
a) Showing general structure of pupa case;
b) Portion of cephalo-lateral margin with pore
c) Vasiform orifice.
— 4. Aleyrodes abutilonea, Haldeman. Pupa case.
— 5. Aleyrodes abutilonea, Haldeman. Pupa case
a) Showing general structure of pupa case.
b) Portion of caudo-lateral margin ;
c) Vasiform orifice.
PLATE 2
Fig. 6. Aleyrodes abutilonea, Haldeman. Adult female.
— 7. Aleyrodes pergandei, Ouaintance. Pupa case, covered with white waxy secretion.
— B. Aleyrodes pruinosus, Bemis, Adult male, showing general structural characters. (After Bemis.)
— 9. Aleurochiton aceris, Geoffroy. (After Tullgren.)
a) Wing venation;
b) Claw of adult;
c) Vasiform orifice adult 9;
d) Vasiform orifice pupa case.
— 10. Aleurodicus cocois, Curtis. Group of pupae on leaf, showing copious white waxy secretion.
— 11. Aleurodicus cocois, Curtis. Structural details. (After Riley & Howard.)
a) Adult female;
b) Antenna of same;
c) Claw of same;
d et e) Abdomen of male showing genitalia ;
f) Pupa case, dorsal view;
f') Compound pore of same;
g) Vasiform orifice, showing operculum, and large exserted lingula ;
h) Margin of pupa case;
1) Pupa case, ventral aspect.
Washington, U. S. A., Sept. 15. 1908.
| GENERA INSECTORUM HOMOPTERA
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