REPORT OF THE STATE ENTOMOLOGIST 1918 193 
Itonida tolhurstae Felt 
1908 Felt, E.P. N.Y. State Mus. Bul. 124, p. 414 (Cecidomyia) 
This dark fuscous yellowish male was taken July 30, 1906 on 
sumac, Rhus, at Albany, N. Y. 
Male. Length 1.25 mm. Antennae a little longer than the body: 
thickly haired, light brown; fourteen segments, the fifth with stems 
having a length one and one-half and two and one-half times their 
diameters, the terminal segment having the distal enlargement with 
a length four times its diameter and a stout, tapering, fingerlike 
process apically. Palpi; first segment subquadrate, the second with 
a length three times its diameter, the third longer, more slender, 
the fourth as long as the third, more dilated. Mesonotum dark 
brown, the submedian lines yellowish. Scutellum dark reddish, 
postscutellum dark brown. Abdomen dark fuscous yellow, the seg- 
ments broadly margined posteriorly with dark brown and with 
short, transverse, dark lines laterally near the middle; venter mostly 
dark brown; pleurae fuscous yellowish. Wings hyaline, costa dark 
brown; halteres semitransparent. Coxae and femora basally pale 
yellowish, the distal portion of femora, tibiae and tarsi mostly light 
brown; claws stout, irregularly curved, the pulvilli about one-third 
the length of the claws. Genitalia; dorsal plate deeply and narrowly 
incised, the lobes broad, truncate; ventral plate long, broad, irregu- 
larly truncate; style long, slender. Type Cecid. 721. 
Itonida quercina Felt 
1907 Felt, E. P. N. Y. State Mus. Bul. 110, p. 137; separate, p. 41 
(Cecidomyia) 
1908 ————— _N. Y. State Mus. Bul. 124, p. 414 (Cecidomyia) 
This pale orange male was taken June 21, 1906 on Swamp white 
oak, Quercus bicolor, at Albany, N. Y. 
Male. Length .5; mm. Antennae nearly as long as the body, 
thickly haired, yellowish gray; fourteen segments, the fifth with 
stems having a length two and a quarter and three times their 
diameters. Palpi; first segment short, semiglobose, second rather 
long, curved, and the third a little longer, more slender; face pale 
yellowish. Mesonotum dark brown, submedian lines yellowish, 
sparsely ornamented with fine setae. Scutellum pale yellowish, 
postscutellum yellowish brown. Abdomen pale orange with a large 
fuscous median spot basally. Genitalia slightly fuscous. Wings 
hyaline, costa light brown; halteres pale yellowish basally and dis- 
tally, pale orange in the middle. Legs pale straw color, the annu- 
lations variably marked with carmine, distal tarsal segments fuscous; 
claws stout, simple. Genitalia; dorsal plate broad, deeply incised, 
the lobes approximate, broadly rounded; ventral plate broad, 
expanding slightly to a broadly rounded setose apex; style long, 
stout, curved. Type Cecid. 342. 
a 
