178 NEW YORK STATE MUSEUM 



Males of this genus, according to Kieffer, have the nodes of the 

 flagellate antennal segments very unequal. The small, yellowish 

 species belonging here may be recognized by the anterior uniden- 

 tate claws, the quadriarticulate palpi, the lack of a conspicuous 

 lobe or spine on the basal clasp segment, and by the linear, emar- 

 ginate ventral plate. The dorsal plate is deeply incised, the lobes 

 oblique or slanting and broadly rounded. Type C. c i 1 i c r u s Kieff. 



Key to Species 



a Length 1 mm, fifth antennal segment of the male with stems two and three 

 times their diameters, respectively, the dorsal plate deeply and narrowly 

 incised, the lobes obliquely truncate, the ventral plate lobes long and 



slender; reared from stems of Papaver caulicola Coq. 



aa Length 1.5 mm, fifth antennal segment of the male with the stems two and 

 one-half and three times their diameters, respectively, the dorsal plate 

 deeply and triangularly incised, the lobes obliquely truncate, the lobes of 



the ventral plate short and broad araneosa Felt, C. 3.2277 



aaa Length 1 mm, fifth antennal segment of the male with the stems three and 

 three and one-half times their diameters, respectively ; dorsal plate deeply 

 and triangularly incised, the lobes broadly rounded, the lobes of the 

 ventral plate short examinis Felt, C. a24i 1 



Clinodiplosis caulicola Coq. 

 1895 Coquillett, D. W. Insect Life, 7:401-2 (Diplosis) 



This insect was reared in July 1893 from the basal portion of the 

 stems of Iceland poppies, Papavaer nudicaule, trans- 

 mitted to the Federal Department of Agriculture by Mrs Celia 

 Thaxter, Portsmouth, N. H. The larvae were rather abundant in 

 the plant tissues. 



Male. Length 1 mm. Antennae twice the length of the body, 

 thickly haired, probably pale yellowish; 14 segments, the fifth with 

 stems two and three times their diameters; terminal segment, basal 

 portion of the stem with a length four times its diameter, the distal 

 part strongly constricted near the basal and distal thirds, apically 

 a short, stout appendage. Palpi probably quadriarticulate. Meso- 

 notum brown, the submedian lines yellowish. Scutellum yellowish 1 

 apically. Abdomen yellow. Wings hyaline, costa yellowish. Claws \ 

 long, slender, evenly curved, the anterior minutely unidentate, 

 pulvilli shorter than the claws. Genitalia; basal clasp segment: 

 short, stout; terminal clasp segment long, stout, slightly expanded! 

 distally; dorsal plate long, deeply and narrowly incised, the lobes 

 obliquely truncate; ventral plate long, broad, broadly and roundly 

 emarginate, the lobes slender, narrowly rounded. 



Female. Length 1.5 mm. Antennae as long as the body, sparsely 

 haired, light brown; 14 segments, the fifth having the stem about 

 one-third the length of the cylindric basal enlargement, which latter 1 



