136 NEW YORK STATE MUSEUM 



KEY TO SPECIES OF ABLABESMYIA 



Larvae 



a Labium with but four teeth, pi. 19, fig-S. ..25. Species from Ithaca, N. Y. 

 aa Labium with tive teeth 



b Several claws of the posterior feet stouter and conspicuously darker 

 colored than the others, pi. 19, fig.14. Antennae over three times as 



long as the mandibles G. m o n i 1 i s 



Z>Z> Claws of posterior feet all the same color 



c Antennae rather short and stout (pl.20, fig.l) less than 1.5 times 

 US long as the mandible ; sides of abdomen fringed laterally with 



liairs P r o c 1 a d i u s a d u m b r a t u s ( q. v. ) 



cc Antennae over twice as long as the mandibles 



d Teeth of labium of about equal length ; antennae three times as 



long as the mandible, pl.20, fig.G 4. c a r n e a 



dd Not as above 



c Mandible stout at base with distinct tooth near apex; basal 

 joint of antenna about two thirds of total length, pl.l9, figs. IG 



and 17 22. f a s t u o s a n. sp. 



ee Antenna with its basal joint over three fourths the total length, 

 pl.l9, fig.l IG. f 1 a V i f r o n s n. sp. 



Pupae 



a Swinuning paddle rounded, not sharply notched at apex 

 ■ h Trumpet rather elongate, over four times as long as wide ; swimming 

 paddle as shown in pl.20, fig.4 



P r o c 1 a d i u s a d u m b r a t u s (q. v. ) 

 hi) Trumpet short (pi. 19, fig.3) ; swimming paddle as shown on pi. 19, 



fig.4 P r o c 1 a d i u s p i n g u i s (q. v. ) 



aa Swimming paddle with two pointed lobes 



h Thoracic respiratory organ (trumpet) egg-shaped, with very small 



aperture, pl.l9, fig.l3 G. m o n i 1 i s 



hb Breathing organ funnel or club-shaped 



c Breathing organ club-shaped, pl.19, fig.2. .IG. f 1 a v i f r o n s n. sp. 

 CG Breathing organ not of this tj'i^e 



d Swimming paddle rather broad, but little longer than wide, pl.19. 



fig.G. Trumpet as shown in fig.T 10. d y a r i 



dd Swimming paddles quite pointed 



c Paddle and breathing trumpet as shown on pl.19, figs. 18 



and 19 22. f a s t u o s a 



ee As shown on pl.20, figs. 7 and 8 4. c a r n e a 



Imagines 



a Wings clouded (banded or spotted) 

 b Legs nearly uniform in color 

 c Wings viniformly spotted with fuscous ; fuscous species ; the thorax 

 with three dusky stripes; legs yellow; length 4.5 mm. ; female. 



(= ? d e c c d e n s Walk. ) 1. pictipennis 



cc Smaller paler species ; the wings with few large bars or spots 



d The first fascia of the wing lies distad of the crossvein ; length 

 2V2 to 4 mm 2. bif ascia t a 



