Vol. XXV] ENTOMOLOGICAL NEWS. 243 



round, arista with five hairs. Mesonotum opake with greenish gray 

 granular pollinose vestiture and three narrow brown vittae medianly 

 which do not attain posterior margin. Scutellum flattened, of like 

 color and surface. Pleurae except mesopleura polished. Abdomen pol- 

 ished, with slight greenish tinge. Femora polished. Length, 3.0 to 3.5 

 mm. 



$ , Fourth abdominal segment equalling 2 and 3 together, fifth and 

 second subequal. 



Holotype. $ Baranquilla, Colombia. Collected March, 

 1912 (Ujhelyi), in the Hungarian National Museum Collec- 

 tion. 



Paratypes. Paraguay: San Barnardino (7, Barbarczy, 

 Feb.-Mar., 1906), Puerto Max, (i, Vezenyi, Jan.-Apr., 1905). 



PSILEPHYDRA Hendel. 1 



A species was recognized from Costa Rica as belonging to a 

 new genus, and I had drawn up a description of it as such 

 when the Supplementa Hntomologica came to hand. Hendel's 

 new genus, erected for a species found in Formosa, was at 

 once recognized as being similar to, if not identical with, my 

 new one. The drawing had been made and engraved, or I 

 would have given figures of characters of more specific im- 

 portance. In addition to the form of the head, there are 

 other essential characters which make it very probable that 

 the Costa Rican species belongs to this genus. It is extremely 

 interesting that species from so widely separated localities 

 should be discovered about the same time belonging to the 

 same and a new genus. The following notes are based on the 

 examination of the Costa Rican specimens only. 



This genus may be distinguished by the peculiar shield-like 

 development of the face which extends rather low, appearing 

 somewhat subhemispherical, being evenly and distinctly con- 

 vex in all directions, including the cheeks. There are no in- 

 dications of the usual parafacial grooves or areas, and the 

 face is destitute of characteristic bristles or hairs. In general 

 the face appears vaulted or arched, as is typical with Ephydra 

 and Parydra, but the mouth is not proportionately so large. 



1 Supplementa Entomologica No. Ill, p. 99, 1914. 



