Samuel Wendell Williston.

Manual of North American Diptera online

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triquetraoi Olivier, nor of Robineau Desvoidy, nor does it belong to
Ervia Desv. It is, however, the species so determined by Coquillett.
The frontal bristles descend one bristle lower.

Figs. 65. 66. Aporia limacodis. This is a true Aporia, not a Mac-
quartia. The head is that of a female. Dexia tristis Walk, seems to
be an Aporia, bvit quite impossible to identify from the description.

Figs. 67, 68. The figures agree with a male cotype of Leiicostoma
nigricornis, except that the third antennal joint should be the same
length as the second. I consider nigricornis and senilis distinct and
will give reasons elsewhere.

Figs. 69, 79. Siphoplagia anoniala. First vein bristly to opposite
end of auxiliary, and third vein to opposite origin of apical cross-vein.



Figs. 71 and 76. Xanthomelanodes arcuata. Figure evidently
made from an oblique viewpoint. Xanthonielana is preoccupied in
Aves (Bonaparte, 1850).

Figs. 72, 75. Sarcomacronychia, sp. Not Pachyophthalnius. I
five elsewhere distinctive differences.

Figs. 73, 74. Goniochcsta plagiodes. A small costal spine some-
times. The frontal and parafacial bristles usually appear as a con-
tinuous row, the latter directed downward. The foremost frontali
inserted opposite base of third joint. There are three procHnate orbi-
tal bristles in each sex, the middle ones sometimes weak.

Fig. 78. Siphona illinoisensis. Differs from geniculata in the
widened and flattened third antennal joint, convexity of third aristal
joint, etc.

Figs. 80, 81. Euthera tentatrix'. The second antennal joint is
sometimes almost as long as the third, the latter in such case being
shortened so as to make the antennae scarcely longer than face. The
third joint is normally of equal width throughout; truncate at tip.

Fig. 82. Drepanoglossa lucens. The anterior upper fronto-orbital (re-
clinate) bristle is stronger than any other save the vertical. I give
elsewhere the differences between Epigrhnyia and Drepanoglossa.

Figs. 84, 85. Euthyprosopa petiolata. Compared with cotype the
front pair of ocellar bristles is longer than shown in figure, and third
antennal joint is pointed at apex. The frontal bristles are sliorter.
The hind cross-vein may be nearer the angle of the fourth vein in
some specimens than in others.

Fig. 87. Chcstogcedia acroglossoides. Apparently the male of Fron-
tina acroglossoides Towns. I give elsewhere distinctions between this
species and Baiinihaueria analis Wulp, with notes on ChcFtogcsdia,
and an allied new genus. The figure should show the outer row of
frontal bristles differentiated from the bristly hairs of parafrontals and
the second antennal joint longer to agree with eastern specimens
which I am inclined to identify as this species.

Fig. 89. Atropharista jurinoides. I give reasons elsewhere for
maintaining this genus.

Fig. 91. Eujurinia pollinosa. I propose this name for //v^/r?V?a
polluiosa Wulp. A specimen from Mexico differs from the figure in
the somewhat wider cheeks and the not bowed palpi.

Fig. 92. Euclytia flava. I propose the new geniis Euclylia for Cly-
tia flava and give particulars elsewhere.

Fig. 93. Neofischeria flava Towns, n. g. et n. sp. The genus and
species are characterized elsewhere. This is not Demoticus venatoris
Coq. , which by the way is not a Demoticus, and for which I propose
the new genus Parafischeria. The figure should show the well de-
veloped palpi, which are elongate, a httle thickened distally and
slightly curved.

Fig. 94. Hyphanirophaga hyphantricE, male. The parafacials be-
low and the cheeks should be narrower to agree with topotypes in the
National Museum.


Figs. 97, 98. Plagiprospherysa valida. The parafacials are not
so wide below in tototypes in the National Museum. The species is
apparently closely allied to P. parvipalpis, but needs comparison.

Fig. 100. Pseudohystricia ambigua, male. The genus differs from
Jurinella in the wider parafacials and more produced front.

Fig. loi. Saundersia sp? Can not be a Neniorcea, which has the
epistoma less prominent and the face more receding and lengthened.

Fig. 105. Muscopteryx sp. Probably M. chcEtosiila.

Fig. 106. Compared with a cotype there is a pair of short reclinate
fronto-orbital bristles opposite the ocellar pair, wanting in figure.

Fig. 109. Achcstoneura archippivora, maXo.. This is Achcstoneura
and not Frontina. Notes on the distinction will be published else-

Fig. no. Senotainia flavicornis. t\i\sisdi\s\\wQ.\.iro-a\.rubriventris.

Fig. III. Gcsdiopsis s-^'i This maybe tnexicana, but is not the
species so determined by Coquillett, which I shall describe as a new
genus and species, Poliophrys sierricola.

Fig. 112. Stofnatodexia analis. If Dexia analis Say is congeneric
with Dexia diadetna Wied. and the species figured is correctly iden-
tified with the former, it is incorrect in having the first posterior cell
end so far from the wing tip.

Fig. 113. Bombyliomyia abrupta. The arista is longer than the
third antennal joint.

Fig. 1 14. Chcetoglossa picticornis. The figure lacks the long and
extremely delicate proboscis.

National Museum, June, 1907.



Fig- 159- Pseudolfersia fumipennis, enlarged. After Lugger.

Head flattened, usually attached to an emargination of
the thorax; face short; palpi forming a sheath for the
proboscis, not projecting in front of the head; anten-
nae inserted in pits or depressions near the border of the
mouth, apparently one-jointed, with or without a ter-
minal bristle or long hairs. Eyes round or oval,
ocelli present or absent. Thorax flattened, leath-
ery in appearance; scutellum broad and short. Halteres
small or rudimentary. Abdomen sac-like, leather}^ in
appearance, the sutures indistinct. Legs short and strong,
broadly separated by the sternum; tarsi short; claws
strong and often denticulated. Wings present or absent;
the veins always approximated to the anterior border,
with less strong ones running obliquely across the wing.

The flies of this family are always parasitic in the adult
condition upon birds and mammals ; they have a pecu-




liar louse-like appearance, and one often encounters
them in handling recently killed birds, especially the
raptorial birds. They have a quick, short flight, seek-
ing the beard or hair of the collector within which they
run nimbly, seeking to hide. The following table is
based chiefly upon Speiser's studies of the genera of the

Fig. 160. Hippoboscidse, Streblidfe. i, tridentate claw; 2, Ornith-
omyia, wing; 3, Aspidoptera, wing (Speiser) ; 4, Trichobius, w^'m^
(Speiser, the slight emargi n ation of ihe distal wing border is not
shown); 5, Strebla, wing (from specimen from southern Kansas, E.
A. Popenoe).


1. Wings functional. ......... 2

Wings vestigial or wanting. ....... 8

2. Claws simple, that is with no accessory tooth between the enlarged

basal plate and the tip. ....... 3

Claws with an accessory tooth. ...... 4

Three longitudinal veins present; wings caducous, often broken and

ragged, especially in the female. . . . Lipoptena.

Six longitudinal veins; wings not caducous. . . Ornithoica.

Anal cross-vein present, the anal cell complete. ... 5
Anal cell open, not closed by a cross-vein. .... 6

Ocelli present (2).

Ornithomyia, Ornithopertha, Ornithoctena.
Ocelli absent. ....... Stilbometopa.

Wings lanceolate, the tip rounded; scutellum truncate. Lynchia.

Wings of usual shape; scutellum not truncate. ... 7

Distance of oral border from frontal suture as great as from suture
to vertex (fig. 159) Pseudolfersia.

Distance from oral border to suture distinctly less than from sut-
ure to vertex . . Olfersia.

Wings vestigial; halteres present. ...... 9

Wings and halteres wholly wanting. . . Melophagus.

Claws simple Lipoptena.

Claws with an accessory tooth. . . Brachypteromyia.




Head of moderate size, with a freely movable neck.
Byes, when present, small, unfacetted, or with very few
facets. Ocelli wanting. Antennae inserted in a pit, two-
jointed, the second joint with a bristle. Proboscis short,
not protrusible, thickened at base. Palpi broader than
long, not forming a sheath for the proboscis, projecting,
leaf like in front of the head. Abdomen with a distinct basal
segment, the other segments rarely distinguishable, the
first segment with peculiar bristles for the protection of
the wings when at rest. Hind coxae always enlarged; fifth
joint of tarsi usually enlarged and elongate. Claws
never distinctly toothed; pulvilli present. Wings some-
times wanting or vestigial; when present the surface
pubescent and the veins rather stout.

Fig. i6i. Megistopoda {Pier ellipsis) aranecc, enlarged (Speiser).

The members of this small family of cosmopolitan dip-
tera, are, with the exception of one reported case, exclu-



sively parasitic upon bats. Their breeding habits are
not well known. Kolenati believed them to be oviparous,
but Speiser is of the opinion that their breeding habits are
not unlike those of the Hippoboscidse.


1. Wings functional, with six longitudinal and nearly parallel veins

and three outer cross-veins. ...... 2

Wings vestigial or wanting, not functional 3

2. Thorax distinctly longer than broad; abdomen distinctly segment-

ated, with two large proximal and three small distal segments;
last tarsal joint not remarkably thickened (5) . Strebla.

Thorax rounded, but little or not at all longer than broad; abdomen
usually indistinctly segmentated; last tarsal joint thickened
and elongate (4). Trichobius.

3. Legs of usual length (3) . .... Aspidoptera.
Hind legs greatly elongated, twice the length of the body {Pter el-
lipsis) (fig. 161). Meg-istopoda.


Small, spider-like, wingless flies. Head oval, folding
back when at rest in a groove on the dorsum of the tho-
rax. Antennae short, two-jointed, the oval terminal
joint with bristles inserted in tubercles. Eyes and ocelli
vestigial. Thorax depressed, laterally anteriorly with
comb-like bristles. Abdomen oval, with more or less
distinct segmental scutes. Legs long, the knees at rest
prominent above the thorax. Femora broad; tibiae club-
bed or shovel-shaped; metatarsus very long. Halteres
pedunculate or sessile, in the latter case often indistinct.

This family includes a considerable number of species,
distributed widely in different parts of the world, all of
them parasitic upon bats. Various attempts have been
made to divide the group into smaller genera, but not
with much success, Nycteribia being the only well defined
genus known. Penicillidia differs in the more aborted
and sessile halteres, and the species are of larger size,
but I doubt its validity.



During the printing of this work several genera new
to America have been added in recent publications; other
changes or additions I have ascertained by the examina-
tion of types. The student is requested to insert marginal
references in the body of the work wherever such changes
or additions should be made.

Page 25, near middle, for 'maxillae' read mandibles; fourth line from
bottom for 'not' read seldom.

Page 28, third line, strike out remainder of sentence beginning 'and
it has been said', and see footnote, page 81.

Page 35, Mr. Austen urges the abandonment of the term 'metatarsus',
and I quite agree with him that the word, as used, is etymologically
incorrect. Whether or not distinctive terms for the different tarsal
joints are desirable I do not know, but I suggest the following: pro-
tarsus, epitarsus, ynesotarsus, metatarsus, onychotarsus.

Page 41, second line from bottom, for 'Cubital i, 2' read Medial i,
2, 3; next line for 'V3, Cubital 3' read VII i, 2, Cubital i, 2.

Page 42, fig. 16, read Thereva, Therevidae.

Page 86, last couplet, change to read:

Antennae 14-jointed; 15 in Elephantoniyia.
Antennae i6-jointed; 12 in Toxorhina.

Page 91, read Tanypremna and Longurio.

Pages 112, 114, first and seventh lines, for 'Ablabesiniyia\ read Tany-
pus; fifth and fourth lines for 'Tanypus^ read Protenthes. Page 114,
eighth line, for 'Isoplates\ preoc. read Tanypus. These corrections
are by Prof. Johannsen.

Page 140, near middle, for 'three' read two.

Page 142, change last two lines to read: Palpi four or five jointed;
antennae eight to twelve jointed, etc.

Page 148, last line, for 'facts' read facets.

Page 155, fifth line, insert twelve to before 'sixteen'.

Page 162, Misgomyia Coq. (Proc. Ent. Soc. Wash. 1908, 145). Near

Arthroceras, four posterior cells; two spurs on hind tibiae. M. obscu-

ra Coq.-Va.

Page 163. An examination of the type of Spania edeta in the Brit-
ish Museum discloses the fact that it is a true Ptiolina; Spania is
not known to occur in North America. Footnote on same page, for
^Rupellia' read Ruppelia.




Page 167, second line, insert flagellum of before 'antenna'.

Page 168, Mr. Verrall informs me that the real difference between
Neoexaireta and Actina is the ocular pubescence of the latter. He
also adopts the name Chorisops Rond. in lieu of Neoexaireta.

Page 181, for 'Alisonia' read Akronia, and for 'Acanthina' pre-
oc. read Acanthinomyia Hunter. Myiochrysa coerulia is a syno-
nym of Sargus viridis, according to Verrall.

Page 180, near bottom, for 'Hamatopota' read Haematopota.

Page 185. An examination of the type of Nothra americana Big. in
Mr. Verrall's cabinet discloses the fact that the species is rightly
placed. The venation is quite like that of Pterodontia^ save that there
is only a slight angulation in place of the costal spur. This character,
however, is not generic; it is disregarded in Opsebius. Mr. Verrall
separates the genera by the presence of but a single aristal hair in
Nothra, three in Pterodontia, but considering the differences used in
generic separation in this family I think Nothra should be suppressed,
Same page, for 'Appeleid' read Apelleia.

Page 191, couplet 3, last line, insert often after 'proboscis.'

Page 197, et seq. Asilidae. The distinction between the Leptogas-
trinse and Dasypogoninse is apparently bridged over by a new genus
from Brazil, represented by a specimen in my cabinet, of which a fig-
ure is here given. The form is quite intermediate between Leptog as-
ter and Plesiomnia. I am unable to make out the structure of the

Fig. 163. New genus of Asilidae between Leptog aster and Plesiom



Dr. Back, who has examined the type of Sphageiis^ distinguishes
the genus as follows:

"Front and middle femora with a patch of short, stout bristles below;
third antennal joint without excision on inner distal part.

Front and middle femora without such patches of bristles; third an-
tennal joint with excision on inner distal part; near the prox-
imal margin of second and third abdominal segments with a
white or yellowish pollinose crossband. . . Dizonias."
Dr. Back also has made 'Habropogon' bilineatiis the type of a new
genus, with the following definition:

"Front not unusually widened above; bristles on the lateral margin
and posterior callosities and scutellar margin numerous and
well developed; third antennal joint short and broad; species
much resembling Stenopogon in general appearance.

Page 195, near middle for '■fraudigerd' read sabulonuni.
Page 198, couplet 7, third line, for '7' read 8; in couplets 11 and 12,
transpose '12' and '13'.

Page 221; couplet 28 first line, for 'male' read female.
Page 203. The genus Dasyllis, according to Col. Yerbury, comprises
but a single species, the type; the American species should be united
with Laphria. In this opinion I agree. According to the same author-
ity Niisa is not a synonym for A^tdrenosoma^ which should be sub-
stituted for that word in the eleventh line.

Page 206. Mr. Verrall has resuscitated Dialineura Rond. for those
species of Thereva having a hairy front, the face bare and the first
antennal joint thickened. This definition will apply to some, prob-
ably to all of those species included under 'Thereva, pt.' in couplet
3 and should be substituted therefor.

Page 217. The type specimen of Rhabdopselaphus nius Bigot, one
of the three or four genera of this family I had never seen, in Mr.
Verrall's collection, lacks the head; otherwise it is a true Geron. Bigot
erred in ascribing three submarginal cells to the genus.

P. 256, couplet 53, for 'Licastrirhyncha' read Lycastrirhyncha
Page 269, sixth line from bottom, for 'irridescent wing' read irides-
cent wings.

Page 277, couplet 3, first line, for '5' read 4; Oallopistromyia
Hendel (1907) replaces Oallopistria, preoc. Eurycephalomyia
Hendel (ibid) replaces Eurycephala, preoc.

Page 279, first line, for 'Richarulia' read Richardia; Macroste-
nomyia Hendel (1907) replaces Stenoraacra, preoc.

Page 283, first couplet, for 'slump' read stump, and 'Toxytrypana'
read Toxotrypana.

Page 288. Hendel (Wien. ent. Zeit., 1907, 228) adopts Chcstocoelia
G. T. for several species of Sapromyza, of which .S". angustipe^inis (5)
is one, having long, pictured wings and small tubercles at the insertion
of the fronto-orbital bristles. Camptoprosopella melanoptera, gen.
et sp. nov. (Puebla, Mex.) he distinguishes from Physogenua by the
nongibbous face, which is straight and retreating save at oral margin,


bare arista, etc. Siphonophysa he proposes for a new species [pectinata,
Brazil) and probably S. sordida Wied. (Brazil and West Indies) hav-
ing the arista plumose above only and a 'hinten ausgeschweiften Au-
genrand'). ChcstoccEha maybe accepted, but the other two genera I
think should be held in abeyance for the present. If they are accepted
a dozen or more of the American species of Saproniyza and Pachyce-
rina should receive new names.

Mr. Hendel republishes the earliest paper of Meigen, of which two
copies only are known to be in existence, in which scores of names,
many of them repudiated later by Meigen, antedate some of the most
common genera in diptera, and advises their substitution! He would
have deserved the thanks of a long suffering public had he withheld
these copies instead of republishing.

Page 294, couplet 3, third line add: or the proboscis not long and
geniculate. Phyllornyza nitefis I/oew is a Par amy ia.

Page 295. Mr. Becker, recently, makes Ophthabnoinyia a synonym
of Milichiella G. T. (1895); he is conect.

Page 298. Geomyzidse. Pseudiastata Coq. (Proc. Ent. Soc. Wash.
1908), near Diastata, but second basal cell coalescent with discal;
three fronto-orbitals; vibrissse present. — 7iebulosa Coq. Md. Muti-
loptera Coq. (ibid.); wings six times longer than wide; arista short
plumose; one fronto-orbital; no postverticals; vibrissae present; hind
border of wing concave, — apicalis Coq. N. Dak.

Page 299, second line from bottom, for 'posterior' read basal.

Page 301, couplet 2, dele 'p. 80,12 and'.

Page 303, eighteenth line, for 'and small' read or absent.

Page 308, couplet 22, for 'sixth' read fifth.

Page 325, Helomyzidae. A very useful review of the North American
Helomyzidse, recently published by Aldrich and Darlington (Trans:
Amer. Ent. Soc. xxiv, March, 1908) adds two new genera to our fauna.
These, together with one recently described by Coquillett (Can. En-
tom. March, 1907) may be differentiated from those given in the table
as follows:

Near Helomyza. a propleural, twodorsocentral, two fronto-orbitals,
one sternopleural bristles present {pilosus, Mass.) Achsetomus Coq.

Humeral, propleural, one dorsocentral, one fronto-orbital, no sterno-
pleural bristles present; oral margin receding, as in Anorostotna.
{johnsoni, Mass.) ...... Porsenus Darl.

A humeral, propleural, five dorsocentral, two fronto-orbital, two
sternopleural bristles present; auxiliary vein indistinct, {oregona,
litorea, Oregon, Calif.) Silig"0 Aldr.

The authors reject Heteromyza as of doubtful occurrence in North
America, leaving all the American forms easily recognized by the pec-
tinate costa. They also merge Scoliocentra into Leria, — which I doubt.

Page 329, couplet 6, second line for 'pleural' read central.

Page 334, couplet 13, for 'cell' read vein.

Page 376, couplet 164; for '169' read 165.

Mr. Townsend proposes to make the specimen illustrated in Fig.
156 the type of a new genus and species, which he will call Euepalpus
flavicaiCda. For Fig. 157, he also proposes the new genus and species
Eufabricia fl.avicans Towns.


Ablabesmyia, 114
Ablautus, 197
Acanthina, 171
Acanthinomyia, 388
Acanthocnema, 330
Acanthomera, 174


Acaulona, 361
Acemyia, 374
Aclialcus, 234
Achaetomus, 390
Achsetoneura, 380
Acicephala, 330
Acidia, 286
Acidogona, 287
Aciura, 286
Acnemia, 137
Acontistoptera, 239
Acorhynchus, 127
Acreotrichus, 216
Acrochseta, 169
Acrocera, 185
Acrodiplosis, 128
Acrometopia, 296
Acronacantha, 356
Acrosticta, 278
Acrotaenia, 287
Actina, 168
Actora, 323
Admontia, 363
Aedes, 108
Aedomyia, 107
Aenigmatias, 239
Agathomyia, 243
Ag07iosoma, 232
Agromyza, 295
Agromyzid^, 291
Akronia {Alisonia) , 171
Alasion, 116
Aldrichia, 214
Allognosta, 168
AUograpta, 255
Allopogon, 201
Allophyla, 325

Allotrichoma, 307
Alophora 361, 378
Amalopis, 90
Amobia, 377
Amphicnephes, 275
Amphicosmus, 216
Anacampta, 276
Anaclinia, 138
Analcocerus, 170
Anarmostus, 204
Anastcechus, 215
Anastrepha, 283
Anatopynia, 113
Andrenosoma, 389
Anepsius, 233
Anisia, 367, 379
Anisomera, 90
Anisotafnia, 215
Anopheles, 107
Anorostoma, 325
Anthalia, 225
Anthepiscopus, 225
Anthomyia, 335
AnThomyid^, 331
Anthrax, 214
Antocha, 88
Aochletus, 171
Apalocnemis, 226
Apatolestes, 180
Aphestia, 202
Aphiochseta, 238
Aphoebantus, 217
Aphrosylus, 233
Aphria, 372
Apinops, 365
Apiocera, 189
Apiocerid^, 188
Apocephaltis, 238
Apoinidas, t88
Apophorhynchus, 281
Aporia, 379
Appeleia, 185
Aprionus, 130
Aptilotus, 316
Araba, 375




Arcliilestris, 198
Archytas, 577
Arctobiella, 296
Arctophila, 257
Argyra, 234
Arnoldia, 128
Arribalzai(ia, 188
Arthroceras, 162
Arthrocnodax, 128
Arthropeas, 162
Asemosyrphus, 258
Asilus, 203
AsiLii)^, 192
Asindulum, 137
Asphondylia, 126
Aspistes, 144
Asteia, 302, 312
Astrophanes, 214
Asynapta, 129
Asyndetus, 233
Atacta, 372
Atarba, 88
Ateloglossa, 355
Atherix, 163
Athyroglossa, 307
Atomosia, 202
Atonia, 202
Atractia, 203
Atricliopogon, 116
Atropharista, 380
Atrophopalpus, 363
A ty lotus, 181
Aulacigaster, 295
Automola, 276
Azelia, 336

Baccha, 254
Baldratia, 127
Balioptera, 298
Baryphlegma, 287
Bathydexia, 354
Baumhaueria, 372
Belvosia, 372
Beris, 168
Berismyia, 168
Beskia, 371
Besseria, 377
Bezzia, 116
Bibio, 143
Bibiocephala, 151
Bibiodes, 143

BiBiONiD^, 140
Bicellaria, 225
Biomyia, 373
Bischofia, 323
Bittacomorpha, 91
Blastocera, 172
Blepharepiuni, 201
Blepharipeza, 374
Blepharocera, 151
Blepharocerid^, 148
Blepharoneura, 287
Blepharoprocta, 224
Bogeria, 347
Bolbomyia, 163
Boletina; 138
Bolitophila, 136
Bolomyia, 373
BoMBYi^iiD^, 210
Bombyliomyia, 377
Bombylius, 215
BoRBORiD^, 315
Borborus, 316
Boreodromia, 223
Brachycampta, 139
Brachycoma, 375
Brachydeutera, 309
Brachyneura, 130
Brachyopa, 256
Brachyophyra, 334
Brachypalpus, 259
Brachypremna, 91
Brachystoma, 224
Brachypteromyia, 383
Bremia, 128
Briciiinia, 275
Briciniella, 275
Bryocrypta, 129
Bryomyia, 130
Bucentes, 371

Cacodaemon, 199
Cacomyia, 109
Cacosis, 171
Cacoxenus, 296
Csenia, 309
Callicera, 252
Callimyia, 243
Callinicus, 201
Calliphora, 343
Callopistria, 277
Calobata, 266



Calodexia, 357
Calotarsa, 243
Camarona, 355
Campeprosopa, 170
Campsicnemus, 235
Camptocladius, 115
Camptomyia, 129
Camptoneura, 276
Campylomyza, 127, 130
Canace, 306
Caricea, 336
Cardiacephala, 266
Carphotricha, 287
Catocha, 127
Cecidomyia, 126
Cecidomyid^, 117
Celatoria, 369
Cellia, 108
Ceratitis, 283
Ceratobarys, 312
Ceratocystia, 109
Ceratogopsis, 199
Ceratolophus, 116
Ceratomyiella, 363
Ceratomyza, 295
Ceratopogon, 115
Ceraturgus, 199
Ceria, 252
Ceriogaster, 257
Ceroplatiis, 137
Cerotainia, 202
Cerozodia, 81
Cephalia, 275
Cephenomyia, 347
Cestonia, 377
Chaetoclusia, 320
Chaetogsedia, 376
Chaetogena; 377
Chsetoglossa, 372
Chcetona, 330, 356
Chaetophleps, 365
Chsetoplagia, 375
Chaetopsis, 278
Chalarus, 245
Chalcomyia, 253
Chamsesyrphus, 255
Charadrella 336
Chastnatonotus, 114

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Online LibrarySamuel Wendell WillistonManual of North American Diptera → online text (page 24 of 25)