THE GENERA OF FLIES IN THE SUBFAlVflLY BOTANO- 

 BIIN^ WITH HIND TIBIAL SPUR. 



By J. R. Malloch, 



0/ the Bureau of Entomology, United States Department of Agriculture. 



In this paper is given a revision of the species in the genera Hip- 

 pelates Loew, Pseudohippelates and Prohippelates, new genera, 

 and Ceratoharys Coquillett. To anyone who has collected in the 

 Southern States, and, in fact, almost anywhere in this country, many 

 of the species of this group must be quite familiar, from their habit 

 of settling on the hands and face. They prove a considerable 

 annoyance in particular on warm days, evidently attracted to any- 

 one who perspires at all freely. There is a belief, however well 

 founded, that they are to a certain extent responsible for the trans- 

 mission of "pinkeye" in the South. As indicated in the title the 

 species have all a distinct hind tibial spur, by means of which they 

 may be separated from all other Chloropidae. 



SYNOPTIC TABLE OB' GENERA. 



1. Frons with distinct orbital bristles 2 



Frons with only hairs on orbits 3 



2. Scutellum elongated, disk flattened; proboscis in male with two long hairs. 



Prohippelates, new genus. 

 Scutellum rounded, convex; proboscis of male normal. 



Pseudohippelates, new genus. 



3. Arista flattened, straplike Ceratoharys Coquillett. 



Arista normal, not flattened Hippelates Loew. 



TABLE OF SPECIES IN HIPPELATES. 



1. Mesonotum entirely glossy black, without any indications of dusting; lege entirely 



yellow 2 



Mesonotum otherwise colored, yellow, brown, or brown-black; if black then with 

 distinct dusting on disk, or if glossy black the legs with black or brown marks. . 7 



2. Anterior half of frontal triangle yellow, posterior half glossy black. 



1. partitus Becker. 



Frontal triangle either all black, or with only the margins, anteriorly, yellow, 



never with the anterior portion transversely divided in color from posterior 



portion 3 



Proceedings U. S. National Museum, Vol. 46-No. 2024. 



239 



