194 Annals Entomological Society of America [Vol. XI, 



portioned 1 : 0.5 : 3.2, of the fifth vein, 1 : 0.7, marginal cilia as long 

 as the anterior cross- vein. 



Type; Le Chorrera, Panama, collected by August Busck, 

 May 12, 1912, for the U. S. National Museum. A male from 

 Jamaica differs only in the following characters which are prob- 

 ably sexual and not specific differences. Pedicel of the second 

 and third veins broadened disc-like and black; hind femora 

 with a strong curved yellow bristle underneath at the outer 

 fourth ; mesonotal hairs longer ; abdominal setulae less pronounced. 



Drapetis inermis, sp. nov. 

 cf . Length 1.9 mm. Head black, occiput subshining, front very 

 narrow, its sides converging so as almost to touch, eyes separated below 

 the antennae by a line, ocellar and vertical bristles moderately long;- 

 palpi white and with an apical white hair, proboscis short, reddish; 

 antennae horizontal, without seta beneath, the third joint lanceolate, 

 nearly twice as long as broad, its terminal arista less than two times the 

 length of the antenna. Thorax shining black, the hypopleuras alone 

 pollinose, its pubescence white, uniformly distributed, six rows of 

 about eight acrostichals, lateral scutellar bristles small. Base of abdo- 

 men not chitinized, the middle segment laterally with a few flattened 

 setute; hypopygiiom shining black, with few hairs. Legs largely 

 brownish, the anterior femora and coxae and the base of the hind femora 

 yellowish, middle femora alone with a preapical bristle, hind tibiae with 

 a single extensor bristle located just above the middle, its apex merely 

 callous, metatarsi not setulose. Halteres yellow, calypteres with six 

 cilia. Wings narrow, nearly hyaline, the veins strong and dark, marginal 

 cilia minute, the second, third and fourth sections of the costa propor- 

 tioned L6 : 2.4 : 1, the submarginal cell at the end of the first vein 

 one-half as wide as the marginal, and at the end of the second vein 

 equal in width to the first posterior, third and fourth veins subparallel, 

 the first posterior cell widest beyond the end of the second vein, anterior 

 cross- vein just before the middle of the second basal cell, last two 

 sections of the fourth vein proportioned 1 : 2.5, of the fifth vein, 3:1. 



One specimen, Alhajuelo, Panama, April 11, 1911, collected 

 by August Busck for the U. S. National Museum. 



Drapetis infumata, sp. nov. 

 9. Length 1.6 mm. Shining black, mesonotum densely black- 

 setulose, wings infumated. Front broadly V-shaped, at the bottom 

 nearly as wide as the second antennal joint; face narrow, its sides 

 parallel; palpi blackish, with a few dusky hairs; antennae ascending, 

 the lowermost hair of the second joint setiform, the third joint very 

 short, ovate, the subapical nearly bare arista more than three times as 

 long as the antennae. No humeral, three or four supraalar, four scutellar, 

 two small prescutellar bristles. Abdomen subshining blackish. Legs 

 blackish, the posterior femora with a small preapical bristle, no tibial 



