1 82 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. 

 (Plate 12, figure 3.) Type Cecid. 714. 



Prionellus montana n. sp. 



This small form was taken by Prof. T. D. A. Cockerell at 

 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. ai95i. 



Aprionus KiefT. 



1894 Kieffer, J. J. Soc. Ent. Fr. Bui., 176 



1895 Soc. Ent. Fr. Bui., p. 318, 319 



1896 Mis. Ent., 4:7, 17 



1897 Syn. Cecid. Eur. & Alg., p. 49 



1900 Soc. Ent. Fr. Ann. v. 69, pi. 17, fig. 1, 2; pi. 23, fig. 15; 



pi. 24, fig. 5, 7, 12 



191 1 Felt, E. P. N. Y. Ent. Soc. Tour. 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 



