I76 NEW YORK STATE MUSEUM 



broadly rounded distally. Dorsal plate broad, narrowly and deeply 

 incised, the lobes nearly approximate, truncate, setose; ventral plate 

 narrow, broadly and roundly emarginate, the lobes short. Harpes 

 long, stout, subtriangular at the base, distally apparently joined by 

 an angulate, chitinous bar, each bearing distally two heavy, uni- 

 dentate claws; style long, slender. Type Cecid. 221. 



Porricondyla dilatata Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 418 



The male was reared Sept. 7, 1907, from a jar containing the 

 very common Cecidomyia verrucicola O. S. gall on 

 linden, Tilia americana, taken at Highland, N. Y. This 

 species presumably came from debris or dead vegetable tissues. 



Male.^ Length 1.25 mm. Antennae as long as the body, sparsely 

 haired, yellowish brown; 16 segments, the fifth with a stem one- 

 half longer than the ovate basal enlargement, which latter has a length 

 one-half greater than its diameter; terminal segment reduced, 

 narrowly oval. Palpi; first segment stout, with a length three 

 times its diameter, the second a little longer, more slender, the 

 third a little longer than the second, the fourth about twice the 

 length of the third. Face fuscous yellowish. Mesonotum shining 

 dark brown, the submedian lines sparsely haired. Scutellum fuscous 

 orange, postscutellum fuscous yellowish. Abdomen rather thickly 

 clothed with fuscous hairs, a variable orange yellow, membrane 

 and pleurae pale yellowish; genitalia fuscous. Wings hyaline, costa 

 dark brown. Halteres semitransparent basally, pale orange distally ; 

 coxae and base of femora pale yellowish, the distal portion of femora, 

 tibiae and tarsi dark brown ; claws strongly curved, unidentate, the 

 pul villi as long as the claws. Genitalia; basal clasp segment short, 

 stout, terminal clasp segment short, very greatly dilated basally 

 and tapering to a narrowly rounded apex. Harpes apparently 

 modified into irregular, recurved hooks, other structures indistinct. 

 Type Cecid. aii4Q. 



Porricondyla juvenalis Felt 



1912 Felt, E. P. N. Y. Ent. Soc. Jour., 20: 239 



This interesting form was taken by Mr D. B. Young at Elm Lake 

 in the Adirondacks, New York, August 7, 191 2. It is remarkable 

 because of the greatly prolonged antennal segments and is easily 

 separated from the allied P. f 1 a v a Felt by the lancetlikc, recurved 

 harpes. 



Porricondyla wellsi Felt 



[915 Felt, E. P. Can. Ent. 47:227-28 



The midge, easily' distinguished by the greatly produced stems o( 

 the flagellate antennaJ segments and the short, greatly swollen 

 terminal clasp segment, was taken by Mr D. I>. Young a1 Wells, 

 N. V., July 5, 1914. 



