10 DIPTERA. 
These examples vary considerably in size ; the largest hasa length of 14, the smallest 
of 10 millim. (Wiedemann gives the length as 6 lines, Macquart as 54 lines, Osten 
Sacken as 12-13 millim.) In all our specimens the palpi are fulvous, and a little 
shorter than the proboscis. In Wiedemann’s description the colour of the palpi is 
not indicated, and on account of this omission it is applicable to two very closely 
allied species—the one with fulvous and the other with black palpi. Macquart has 
determined the latter as D. corpulenta (Wiedem.), and described the first as a new 
species under the name of D. rufipalpis. According to Osten Sacken, who has examined 
the typical specimens of Wiedemann in the Museum at Vienna, the true D. corpulenta 
(Wiedem.) agrees in all respects with his D. veratrix (with red palpi), and D. rufi- 
palpis, Macq., is synonymous with them (see Osten Sacken, ‘ Catal. of the Described 
Diptera of North America,’ p. 256, note 265). D. corpulenta, Macq. (with black 
palpi) requires thus a new name (see the following species). 
To the cited descriptions I may still add the following characters :—The frontal 
bristles are but moderately robust and descend to the number of three or four beneath 
the base of the antenne. The third joint of the antenne is ovate, as long as the 
second; this latter, however, is narrower, hairy on its upperside, and bears a rather 
long bristle. The hairs of the cheeks are yellow, and the beard is similarly coloured. 
The black macrochete of the thorax are very conspicuous between, and also longer 
than, the less obscure pilosity. The foot-claws are yellow, with black tips. 
5. Dejeania plumitarsis. (Tab. I. figg. 5 a, apex of the abdomen, 6; 4 6, front 
tarsus, ¢.) 
Echinomyia corpulenta, Macq. Suit. & Buffon, Dipt. ii. p. 77. 22 (exclus. syn. Wiedemann). 
Dejeania corpulenta, Macq. Dipt. Exot. ii. 8, p. 85. 4’, and Suppl. i. p. 143, t. 12. f. 2; Schiner, 
Reise d. Novara, Zool. iii., Dipt. p. 337. 143° (exclus. syn. Wiedemann). 
Dejeania plumitarsis, v. d. Wulp, Tijdschr. voor Entom. xxix. p. xxxi°. 
Hab. Mexico?; Guatemata, Cerro Zunil 4000 to 5000 feet (Champion) ; Costa Rica, 
Volcan de Irazu 6000 to 7000 feet (Rogers).—Sovutn America ?; CoLomBia, Bogota}. 
We have received a male from Costa Rica and a female from Guatemala. 
This species is closely allied to the foregoing, but can be at once distinguished by 
the obscure coloration of the palpi. These organs are as long as the proboscis; in the 
male they are black, but in the female more of a dark brown tint, though having also 
a black aspect in consequence of their pilosity. 
The male is well characterized by having some long black hairs, extending at the 
anus beyond the red pile and the black spines; and especially by a row of black hairs 
on the inner side of the three intermediate joints of the front tarsi. 
In both sexes the black dorsal spots of the abdomen are more extended than in the 
preceding species: in the Guatemalan female specimen they almost form transverse 
bands. 
