74 INSECUTOR INSCITI^ MENSTRUUS 



as long as last tarsal joint. Front tarsi of female widened. 

 Vibrissoepalpus flavipes, new species. 



Length of body, 13 mm. ; to end of spines, 15 mm. ; of wing, 

 13 mm. One female, Pachacayo, Peru, about 12,000 feet, on 

 flowers of Vigiiiera sp., March 37, 1913 (Townsend). 



Whole face and cheeks deep buff-yellow, satiny, with gold 

 pollen ; paraf rontals dark olive, produced by the thin gold 

 pollen over black. Frontalia testaceous-brown ; first two an- 

 tennal joints nearly same shade of brown, third joint black- 

 ish. Occiput brassy pollinose, with brassy beard. Thorax 

 about same as paraf rontals, four dark olive vittae faintly show- 

 ing. Scutellum rufous, thinly silverly pollinose. Abdomen 

 deeper rufous, with faint suggestion of silvery pollen on 

 median line and along incisures. Legs bright fulvorufous, 

 tarsi light lemon-yellow. Wings evenly light smoky, darker 

 at base. Tegulse deeply smoky. 



Holotype, No. 19433, U. S. Nat. Mus. TD4137. 



Eumelanepalpus, new genus. 



Genotype, Eumelanepalpus ruber Townsend, new species. 



Differs from Melanepalpus as follows: Proboscis beyond 

 geniculation as long as head-height. Second abdominal seg- 

 ment with discal bunch of macrochsetse covering median space 

 from front margin back to marginal row. Hind marginal rows 

 of second and third segments not broken. The last character 

 also distinguishes the genus from Quadrat osoma. The abdomi- 

 nal macrochaetse are quite as in Rhachoepalpus, but the genius 

 differs from latter in absence of ocellar bristles, and in the 

 elongate proboscis. The form of abdomen is quite as in 

 Melanepalpus; and also nearly like that of Rhachoepalpus, 

 but not so widened behind as in females of latter. 



Eumelanepalpus ruber, new species. 



Length of body, 13 mm. ; to end of spines, 14.5 mm. ; of 

 wing, 13 mm. One female, Uruhuasi Bridge, Peru, montanya 

 of the Rio San Gaban Canyon, about 6,500 feet, February 3, 

 1910, on flowers of Baccharis sp. (Townsend). 



Head dull yellowish, parafrontals black, whole head thinly 



