136 NEW YORK STATE MUSEUM 



KEY TO SPECIES OF ABLABESMYIA 



Larvae 



a Labium with but four teeth, pi. 19, fig.5. . .25. Species from Ithaca, N. Y. 

 aa Labium with five teeth 



J) Several claws of the posterior feet stouter and conspicuously darker 

 colored than the others, pi. 19, fig.l4. Antennae over three times as 



long as the mandibles 6. monilis 



1)1) Claws of posterior feet all the same color 



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

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



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



CG Antennae over twice as long as the mandibles 



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



long as the mandible, pi. 20, fig.6 4. c a r n e a 



dd Not as above 



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

 joint of antenna about two thirds of total length, pi. 19, figs. 16 



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, 

 pi. 19, fig.l 16. f 1 a V i f r o n s n. sp. 



Pupae 



a Swimming paddle rounded, not sharply notched at apex 



1) Trumpet rather elongate, over four times as long as wide; swimming 

 paddle as shown in pi. 20, fig.4 



Procladius adumbratus (q. v.) 

 1)1) Trumpet short (pi. 19, fig.3) ; swimming paddle as shown on pi. 19, 



fig.4 Procladius pinguis (q. v.) 



aa Swimming paddle with two pointed lobes 



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



aperture, pi. 19, fig.l3. 6. monilis 



1)1) Breathing organ funnel or club-shaped 



G Breathing organ club-shaped, pi. 19, fig.2. .16. f 1 a v i f r o n s n. sp. 

 GG Breathing organ not of this type 



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



fig.6. Trumpet as shown in fig.7 10. d y a r i 



dd Swimming paddles quite pointed 



c Paddle and breathing trumpet as shown on pi. 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) 

 1) Legs nearly uniform in color 



G Wings uniformly spotted with fuscous ; fuscous species ; the thorax 

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



(n=?deceden9 Walk.) 1. pictipennis 



GG Smaller paler species ; the wings \yith few large bars or spots 



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

 2V2 to 4 mm 2. bifasciata 



