130 INSECUTOR INSCITI^ MENSTRUUS 



Wyeomyia melanopus, new species (PI. V, fig. 4). 



Male. Palpi black-scaled; clypeus and tori nude, pruinose, 

 partly whitish ; occiput with flat black scales with bluish re- 

 flection, a white spot at the vertex and narrow central white 

 line, white scales on the sides below ; prothoracic lobes blue- 

 violet, shading to whitish at the tips ; mesonotum and scutellum 

 with light brown scales, a white line on the lateral edge; 

 postnotum brown, nude, pruinose, with a group of setse pos- 

 teriorly ; abdomen black above, silvery white below, the colors 

 separated on the sides in a straight line; legs with the tarsi 

 entirely bronzy black ; wing-scales small, dense, on the forks 

 of the second vein ligulate at the base, becoming shorter and 

 more triangular apically. 



Genitalia. Side pieces inserted on the upper half of the 

 segment, about three times as long as wide, conical, the tips 

 narrowed and down-curved, the filaments capable of being di- 

 rected straight inward ; filament with long slender uniform 

 stem, the tip expanded into a rounded lobe with pointed bud- 

 shaped tip, with a central ridge running from the tip halfway 

 down ; a row of setse along one margin, which is angled, rep- 

 resenting one side lobe ; the other side is smoothly rounded, 

 the lateral lobe being quite obsolete. Harpes long, a little 

 bent in the middle, digitate, with five teeth. Unci sim- 

 ilar, smaller, pointed. Basal appendages with two spines, 

 articulated and opposed to the side pieces. 



Type, male. No. 22005, U. S. Nat. Mus. ; Porto Bello, Pan- 

 ama, January 2, 1908 (No. 119), bred from a Bromelia on a 

 fallen tree near a brook (A. H. Jennings). 



Two species with blue prothoracic lobes from Panama are 

 unknown in the male, agnostips D. & K. and hofnothe D. & K. ; 

 but these have white marks on the tarsi in the female, so that 

 I cannot associate this male with either of them. 



Wyeomyia telestica Dyar & Knab. 



Wyeomyia telestica Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 



230, 1906. 

 Wyeomia teiestiCa Howard, Dyar & Knab, Mosq. No. & Cent. 



Am. & W. I., ii, pi. 4, fig. 24, 1912. 





