138 NEW YORK STATE MUSEUM 
Male. Length 1.25 mm. Antennae one-fourth longer than the 
body, thickly haired, light fuscous yellowish basally; fourteen seg- 
ments, the fifth with stems each having a length two and one-half 
times their diameter; distal enlargement pyriform, with a length 
one-half greater than its diameter; terminal segment having the 
distal enlargement with a length three times its diameter, the apex 
obtusely rounded. Palpi; first segment quadrate, the second nar- 
rowly oval, with a length twice its diameter, the third a little longer, 
more slender, the fourth shorter, slightly dilated. Face yellowish. 
Mesonotum dark brown, the submedian lines yellowish. Scutellum 
and postscutellum fuscous yellowish. Abdomen light carmine, the 
dorsum of the second and third abdominal segments variably fus- 
cous. Wings hyaline, costa light brown; halteres light fuscous. 
Legs light fuscous straw, the distal tarsal segments darker; claws 
slender, strongly curved, the pulvilli as long as the claws. Geni- 
talia; basal clasp segment slender; terminal clasp segment slender; 
dorsal plate deeply and triangularly emarginate, the lobes narrowly 
and obliquely truncate; ventral plate short, broadly rounded, style 
short.) Dype' Cecid: ans7 7a: 
Lestodiplosis flavomarginata Felt 
LOOZM elt Bes UNe in notate w Vitiss Bile TO; py wise separates 42 
(Cecidomyia) 
1908 ———— N.Y. State Mus. Bul: 124, p. 408 
The light-brown male was taken June 1, 1906 on white clover, 
Hritvodi unm) re pens, at Albany! Nave 
Male. Length .75 mm. Antennae one-half longer than the body, 
thickly haired, light brown; fourteen segments, the fifth with stems, 
each having a length three and one-half times their diameter; distal 
node with a length equal to its diameter. Palpi; the first segment 
suboval, the second twice the length of the first, elongate, oval, the 
third about the same length, more slender, the fourth a little shorter 
than the third, slightly expanded distally. _Mesonotum yellowish 
brown, the broad median area thickly clothed with yellowish hairs. 
Scutellum reddish, the postscutellum probably concolorous. Abdo- 
men light brown, anterior segments margined posteriorly with yel- 
lowish, posterior segments reddish. Wings hyaline, costa light 
brown; halteres reddish transparent basally, somewhat fuscous 
apically. Coxae yellowish transparent, tinged with reddish apically; 
femora yellowish transparent, tibiae slightly darker, tarsi light 
brown; claws slender, evenly curved. Genitalia; basal clasp segment 
very long, slender; terminal clasp segment slightly swollen basally; 
dorsal plate broad, deeply incised, the lobes broadly rounded; ventral 
plate narrow, broadly rounded; style very long. Type Cecid. roo. 
Lestodiplosis grassator Fyles 
1882 Fyles, T. W. Can. Ent. 14:237-39 (Diplosis) 
1883. ————— Ent. Soc. Ont., 14th Rep’t, p. 30-31 (Diplosis) 
