330 *S'. W. WilUston — NortJt American Conops. 



veiu as far as the small cross-vein; then by the fourth longitudinal 

 to the great cross-vein, beyond which is a hyaline cross-band reach- 

 ing the costal margin, excepting sometimes a faint, narrow cloud 

 along the third vein. A brown spot in the end of the subraarginal 

 cell that extends a short distance on the posterior side of the third 

 vein ; great cross-A^ein and the anterior side of the fifth vein from 

 near the small cross-A-ein, with brownish clouds. Great cross-vein 

 not at all oblique. Long, corp., 9-11"""; Long, al., 6-7|""". Three 

 specimens. On underbrush, Mass., July 1 ; Conn., June 25. New 

 England (Sanborn); Burgess' col. 



The hairs on the vertex, dorsum of thorax and sides of first abdom- 

 inal segment, are longer and more abundant than in any other 

 species known to me. Its parasitic habits will probably be found to 

 be quite ditferent from any of the following. 



Conops excisus Wied. 



Aus. Zw. ii, 234. Lw., Neue Beitr., i, 28. 



,5 . Face yellow, the orbits with a rather broad glistening border 

 of yellowish white, extending as a narrow line nearly to the vertex ; 

 facial grooves not darkened ; cheeks more reddish. Proboscis about 

 twice the length of the head ; reddish brown ; at base and tip black. 

 Antemife red or reddish brown, moi'e or less black near the end of 

 the third joint; first joint more than half as long as second, second 

 and third of equal length ; second joint of style with a very incon- 

 spicuous process ; third joint at the base not very broad, and soon 

 attenuated into a long, bristle-like point. Vertex red or reddish 

 brown ; front mostly filled out with dark, reddish brown, blackish 

 above the base of the antennje. Occiput brown, orbits with a line of 

 yellowish dust, bi'oader above and extending across below the ver- 

 tex. Thorax black ; humeri, scutelluiii, and the upper parts of the 

 sides of the metanotum, red. The lateral borders of dorsum may be 

 of the same color. Humeri on their inner sides and extending out- 

 wards along their hind border; a small spot in front below ; another 

 in front of the roots of the wings above; narrow pleural stripes, 

 distinctly margined above; upper margin of the metanotum ; and a 

 large spot in front of each halter, bright golden yellow. Smaller 

 spots on the sides of the disk of the metanotum and just back of the 

 root of the wings, more grayish yellow. Abdomen chiefly black; 

 second segment on its sides or almost wholly, red ; the three or four 

 following segments with only the hind border, red, or also with large 



