30 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



PSILOTA. 



Psiloia MSigen, Syst. Beschr.,iii, 250, 1822. 



Small, black, rather thickly pilose species. Eyes pilose, contiguous 

 in the male. Antenniie : First two joints short, tliird more or less elon- 

 gated, arista dorsal, basal, bare. Face pilose, the epistoma produced 

 forwards. Abdomen short, broad. Hind femora a little thickened. 

 Wings as in Alyiolepta; marginal cell open; anterior cross- vein near 

 base of discal cell; third vein nearly straight; false vein obsolete. Type 

 of genus P. anthracina Meigen, Europe. 



In the type of this genus the face is concave from the autennse. In 

 our single American species the face is convex above and concave be- 

 low; the third joint of the antenuaj is also more elongate. These dif- 

 ferences are, however, not important enough to exclude our species. 



Psllota buccata. 



Fipiza buccata Macquart, Dipt. Exot., ii, 2, 107; pi. xviii, fig. 2. 

 PsUola Jiavidlpennis Macqviart, Dipt. Exot., 5'' Suppl., 97 ; pi. v. fig. 5. 



Habitat. — United States!, Carolina (Macq.). 



$ , 9 . Length, 7 to S™"'. Shining, metallic greenish black. Head shin- 

 ing black, front and face clothed with white pile. Antenupe black- 

 ish brown, the second joint deep red or nearly black; not as long as the 

 face. Dorsum of thorax and scutellum in the male clothed with rather 

 abundant, erect, somewhat yellowish pile ; in the female shorter, less 

 abundant, and more whitish pile ; pleurai with whitish pile. Abdomen 

 shining bronze black, in the male with yellowish, in the female more 

 whitish, erect pile. Femora, except the tip, black ; tibi* and tarsi yel- 

 low, except that the middle portion of the middle and hind tibia' is brown- 

 ish or blackish, and the terminal joints of all the tarsi are blackish. 

 Wings nearly hyaline; on the outer jjart, especially in front, with a 

 brownish cast. 



Two si)ecimens in the Loew type collection at Cambridge, labeled 

 Psilota flavuUpennis. I have no doubt that this species is Fipiza buc- 

 cata; that it is Ma^cquArVs Psilota flavidipennis is doubtful. The de- 

 scription of the latter is as follows : 



Psilota flavidipeunis. 



Psilota flavidipennis Macquart, Dipt. Exot., 5" Suppl., 97 ; pi. v, fig. 5. 



^^ Nigra, Jiavido tomentosa, metatarso testaceo. Alis flavidis.''^ 

 " Long. 31. (6"""), $ . Face a leger duvet gris, saillante dans le bas, un 

 pen con vexe dans lehaut; epistome saillant. Front pro<Sminent. Anten- 

 ues noires ; premier article un peu allonge, troisieme oblong. Yeux 

 veins de jaunatre. Thorax d'un noir luisant, a polls jaunatres. Ab- 

 domen un peu plus 6troit que dans le P. anthracina^ d'un noir mat et 



