182 NEW YORK STATE MUSEUM 
uniform dark brown or black. Mesonotum shining. Wings hya- 
line, costa dark brown, subcosta uniting with the margin just before 
the basal half. Halteres pale yellowish; legs mostly pale yellowish 
transparent, the tarsal articulations variably tinged with carmine; 
the distal segments darker; metatarsus of the fore and middle legs 
scarcely twice the length of the following segment; claws rather 
slender, strongly curved, denticulate; the pulvilli as long as 
the claws. Genitalia: basal clasp segment short, stout, obliquely 
truncate; terminal clasp segment short, stout, constricted at the 
base, narrowly rounded. Dorsal plate broad, broadly rounded. 
(Platesi2eieunesss) 6 dypeCeerd. 714 
Prionellus montana n. sp. 
@his’ small fornia was taken by Prof. T. D. A. ‘Cockerell ap 
Boulder, Col., April 25, 1909. 
Male. Length 1.25 mm. Antennae a little longer than the body, 
thickly haired, fuscous; 14 segments, the fifth with a stem as long 
as the subcylindric basal enlargement, which latter has a length 
one-half greater than its diameter; terminal segment somewhat re- 
duced, narrowly rounded. Palpi; first segment stout, subquadrate, 
the second a little longer, more slender, the third longer than the 
second, more slender, the fourth one-half longer than the third, 
slender. Thorax and abdomen a nearly uniform fuscous, the latter 
sparsely haired. Wings hyaline, costa fuscous, subcosta uniting 
therewith beyond the basal half, the third vein at or a little beyond 
the apex. Halteres yellowish. Legs a fuscous yellowish, the fourth 
and fifth tarsal segments a variable brown; claws long, stout, very 
strongly curved, minutely denticulate, the pulvilli longer than the 
claws. Genitalia; basal clasp segment stout, obliquely truncate; 
terminal clasp segment greatly dilated, subtriangular, the apex 
slightly recurved; dorsal plate broad, broadly rounded apically, 
ventral plate apparently slightly bilobed. Harpes conspicuous, 
dilated, heavily chitinized. Type Cecid. a1g51. 
Aprionus Kieff. 
1894 Kieffer; J. J. Soc. Ent. Fr. Bul., 176 
1895 ——————__ Soc. Ent. Fr. Bul., p. 318, 319 
1896 ———_—_—— Mis. Ent., 4:7, 17 
1897 ——————_ Syn. Cecid. Eur. & Alg., p. 49 
1900) ——————— Soc: Ent. Fr Anny: 60; pl 17, fig. z, 2) ple 235 mens: 
fll Aa, ile, Gy eZ 
roid Pelt, EB. PsN. Yo Ent.’Soc. Jour, 19:34 
This genus, as originally defined, has the antennal segments sub- 
conical, subsessile in the female, the thickened portion of costa 
approaching nearer the fourth than the third vein. Palpi quadri- 
articulate, claws simple, the pulvilli wanting. Later it was stated 
that the claws were arched and not or hardly dilated, while the 
