8 DIPTERA. 
The Central-American species known to me may be characterized as follows :— 
1. Black and black-haired species . . . + + + + + e © + ® 
Testaceous or fulvous species, the abdomen at least testaceous . 3. 
2, Legs wholly, or for the greater part, yellow . . - - + + - pallipes, Macq. 
Legs black © 2 2 eee ee ee ee atrata, v.d. Wulp. 
3, Abdomen nearly quadrate, with rounded angles; legs black . . rutilioides, Jaenn. 
Abdomen cordiform; legs fulvous . . - »- © + © * + 5 4. 
4, Palpi fulvous; tarsi simple . woe ee corpulenta, Wied. 
Palpi black or piceous ; front tarsi in the male fringed with long 
hairs, 2. 0. ee ee ee plumitarsis, v. d. Wulp. 
1. Dejeania pallipes. (Tab. I. figg. 1; la, head in profile; 16, the insect in 
profile to show the arrangement of the bristles.) 
Dejeania pallipes, Macq. Dipt. Exot. ii. 3, p. 34. 2, t. 2. f.91; Suppl. i. p. 143; Schiner, Reise d. 
Novara, Zool. iii., Dipt. p. 337’. 
Hab. Costa Rica, Rio Sucio, Volcan de Irazu (Rogers); Panama, Volcan de Chiriqui 
5000 to 6000 feet (Champion).—Soura America?; CoLomBra, Bogota *. | 
Two males and five females. 
This species is easily recognized by the deep black colour of the body and the dark 
tint of the tegula and wings, to which the bright fulvous-yellow legs form a striking 
contrast. The femora, however, are usually brown, but in some examples this dark 
colour is confined to the base. A single female specimen has the femora totally 
yellow, though they are a little less clear in tint than the tibie and tarsi. 
The antenne and palpi are black, the thin hairs on the cheeks obscure, and the 
frontal bristles rather weak. The macrochete of the thorax are not longer than the 
black hairs and concealed between these latter; the black spines on the abdomen are | 
very numerous. ‘The femora, especially the front pair, are densely beset with long hairs ; 
the front tibiee show at the outside some short black bristles, which, however, are 
wanting on the apical half; the posterior tibie have in the middle some long and 
robust black bristles; the bristles of the tarsi are yellow; the claws yellow, with 
black tips. 
2. Dejeania atrata, sp.n., ¢. (Tab. I. fig. 2.) 
Entirely black, including the antenne, proboscis, palpi, and legs; head whitish; tegule dark brown; wings 
brownish. 
Length 11 millim. 
Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Logers). 
Smaller than the foregoing (D. pallipes has a length of 12-18 millim.), and similarly 
coloured, but differing in the totally black legs and in the lighter coloration of the : 
wings. Head dark grey or white, according to the reflection of the light ; oral margin 
