REPORT OF THE STATE ENTOMOLOGIST 1918 85 
Male. Length 1 mm. Antennae longer than the body, sparsely 
haired, dark brown; fourteen segments, the fifth with stems two and 
one-half and three and one-half times their diameters, respectively. 
Palpi; the first segment subquadrate, slightly curved, the second 
rather stout, suboval, the third a little more slender, the fourth a 
little longer than the third; head black. Mesonotum dark brown. 
Scutellum and postscutellum lighter. Abdomen yellowish brown, 
vestiture scarcely perceptible. Wings hyaline, costa light brown; 
halteres yellowish white. Legs light brown, paler at the articula- 
tions; claws slender, uniformly curved. Genitalia; basal clasp seg- 
ment long, stout; terminal clasp segment slightly swollen at the 
base; dorsal plate broad, deeply and widely emarginate, the lobes 
broadly rounded; ventral plate broad, broadly rounded. Type 
Cecid. 130. 
Arthrocnodax abdominalis Felt 
1g1t Felt, E.P. Ent. News, 22:128-29 (Endaphis) 
i con.) Ent, Jour, 72456 
This small, yellowish midge was reared by Prof. C. H. T. Town- 
send, Piura, Peru, from cotton leaves infested by a mite, Eriophyes. 
Arthrocnodax meridionalis Felt 
1912 Felt, E.P. Ent. News, 23:176-77 
This species was reared from Eriophyes galls on Ruellia 
tuberosa collected at St Vincent, W. I. 
Arthrocnodax fraxini Felt 
1907 Felt, E. P. N. Y. State Mus. Bul. 110, p. 138; separate, p. 42 
(Cecidomyia) 
1908 ————— _ N. Y. State Mus. Bul. 124, p. 404 
The dark reddish male described below was taken June 10, 1906, 
on ash, Fraxinus, at Albany, N. Y. 
Male. Length t mm. Antennae nearly twice the length of the 
body, sparsely haired, light brown; fourteen segments, the fifth with 
stems each with a length two and one-half times its diameter. Palpi; 
the first segment subquadrate, the second one-half longer than the 
first, the third a little shorter, the fourth one-half longer than the 
third. Mesonotum nearly uniform dark brown, submedian lines 
yellowish. Scutellum yellowish laterally, dark orange apically, 
postscutellum a little darker. Abdomen dark reddish, slightly 
lighter dorsally on the second and third abdominal segments. Wings 
hyaline (pl. 12, fig. rr), costa dark brown; halteres yellowish trans- 
parent. Legs nearly uniform dark brown, lighter ventrally; claws 
rather slender, evenly curved. Genitalia; basal clasp segment long, 
stout, at the basal angle a thickly haired lobe; terminal clasp seg- 
ment slightly swollen at base, long; dorsal plate broad, broadly and 
