S. W. WilUston — North American Conops. 331 



spots on the sides. Hind borders of the segments with bright golden 

 yellow biinds, broad on the second, narrower on the tliird and fourth, 

 and broad again on the fifth ; sixth segment behind, similarly colored. 

 Anterior parts of second, fifth, and sixth segments more grayish 

 dusted. Legs red ; base of tibia? yellow, anterior jmirs on the out- 

 side with white luster ; tarsi brownish black, first joint reddish 

 black. Wings rather dark brown and hyaline, distinctly clearer 

 before the first longitudinal vein. From the small cross-vein the 

 discal cell, except a dark brown cloud before the fifth vein, is nearly 

 hyaline, limited in front by a very clear streak between the fourth 

 vein and a sort of spurious vein, extending between the anterior ends 

 of the small cross-vein nearly to the posterior; last segment of the 

 fourth vein with a rather narrow clearer space in front. Sixth vein 

 with a dai-k brown cloud. Long, corp., 13-16""". Long, al., 10- 

 11""". Ga., Flor., N. Carolina (Morrison). 



The female, according to Loew, has an unusually large process on 

 the underside of the fifth segment. The red color on the sides of the 

 segments is not a sexual marking. 



Conops bulbirostris Loew. 



Neue Beitr., i, p. 30. 



Very closely allied to the foregoing, yet evidently distinct. A 

 single female specimen was described by Loew which agrees nearly 

 perfectly with two male specimens before me, from Carolina and 

 Georgia. (Burgess' collection.) 



The second joint of the antennaB is proportionately a little longer, 

 but I can see no difference in the length of the terminal joint of the 

 style ; the proboscis, however, is distinctly shorter, and at its base 

 more swollen. The second segment of the male abdomen, in my 

 specimens, at least, is narrower. 



S . Front wholly and quite black, vertex a more brownish black, 

 face yellow, cheeks brown, the brown not reaching far forward. 

 Antenna? black, somewhat reddish on the undersides of the first and 

 third joints. Thorax and abdomen black throughout. The grayish 

 or grayish yellow, and much less distinct dust markings of the head 

 and thorax are quite as in excisus, except that the spot on the side of 

 the dorsum of the thorax, before the root of the wing, is less distinct, 

 the dust on the disk of the metanotum broader and less sharply de- 

 fined, and the pleui'al stripe is indistinct or diffused on the upper lialf. 

 The third and fifth segments of the abdomen have rather narrow, the 



