154 NEW YORK STATE MUSEUM 



Feet as usual, all claws of the same brownish color. Dorso-anal 

 papillae with six to eight setae. Blood gills as in m o n i 1 i s . 



Pupa. Pale fuscous. Length about 4 mm. Breathing trumpet 

 (fig.18) about three times as long as broad, with large apical 

 aperture, its surface spinose scaled. The surface of the abdomen 

 under a very high magnification appears finely punctate. The 

 lateral margin of the last two segments with the usual 4 or 5 

 filaments. The caudal fin (fig.19) has two pointed lobes, the sur- 

 face covered with minute spinose scales. 



Imago. Female, fuscous, legs and wings unmarked, the latter 

 hairy and with darkened crossvein. Length about 3 mm. 



Head, including palpi, proboscis, and antennae fuscous; eyes 

 black. Thorax, including pectus, pleura, scutellum and metano- 

 tum fuscous; the dorsum, with the humeri, space in front of 

 scutellum and three fine longitudinal lines more cinereous, in 

 some lights the other parts appear more cinereous. Hairs dusky, 

 abdomen fuscous, posterior margins of the segments cinereous; 

 the hairs pale. The legs pale fuscous; the extreme tips of the 

 tibiae darker. Fore metatarsus 0.6 as long a its tibia. The 

 wings subhyaline, hairy, unmarked, crossveins and the radius 

 darker than the other veins, crossveins specially distinct, E 2 

 present; cubitus forks a little proximad of the crossvein. Hal- 

 teres white. Bred specimen. Ithaca, N. Y. Michigan. A 

 specimen from Pullman, Wash., has dorsum of thorax and scutel- 

 lum yellowish, the three dorsal stripes distinct, dull brownish 

 black. 



23. Ablabesmyia hirtipennis Loew. 

 1866 T any pus Loew. Berl. Ent Zeit. (Centur. VII). p.5 



Female. Wholly fuscous, wings about the same color, thickly 

 pilose, crossveins black, all of the tarsal joints linear. Length 

 3.5 to 3.8 mm. Wing 4.1 to 4.2 mm. 



Fuscous; antennae, the posterior margin of each of the 

 abdominal segments and the femora, excepting the tip, rather 

 paler, palpi darker; the tarsi long in proportion, dark fuscous 

 toward the tip, all its joints linear, decreasing in length, the last 

 one shorter than the one preceding. Wings cinereous fuscous, 

 thickly covered with long fuscous pile, the veins ais is usual with 

 the species of this genus, the crossveins black, the others sub- 

 fuscous, R 4 4- 5 running into the margin of the wing near its tip. 

 Translation. Maine. 



Mr. S. Henshaw of Cambridge, Mass., who kindly examined the 

 type for me, writes that the fork of the cubitus begins proximad 

 of the crossvein, the halteres are luteous, and the thorax is 

 striped. 



