AMERICAN DIPTERA. 269 



slightly over oue-half as long as, in the female fully as long as, the head height. 

 Antenna} of male excessively long, over three times as long as the head, the 

 female antennae three times as long as the head, the third third joint is much the 

 longest, its style coiled spirally. 4 mm. 



Eufaula, Alabama (C. W. Johnson). Numerous specimens. 



Hilara caiia Coquillett. 

 Proc. Nat. Mus., 1895, p. 395. 



Wholly black, including the palpi and knees. Head opaque gray pollinose, 

 the pile black. First two antennal joints subequal in length, the third three 

 times as long as the second, style nearly as long as the third joint. Proboscis as 

 long as the height of the head. Eyes widely separated. Thorax opaque gray 

 pollinose, marked with three brownish black vittse, pile and bristles black ; 

 pleura naked. Scutellum bearing four black bristles. Abdomen and hypopy- 

 gium opaque gray pollinose, the pile largely yellowish. Legs bearing rather 

 long scattered pile, none of the femora unusually stout, front tibiae more robust 

 than the middle ones, front metatarsi greatly enlarged. Wings hyaline, stigma 

 grayish black. In the female the front tibiae are not thicker than the middle 

 ones, and the front metatarsi are not enlarged. 4 mm. 



Southern California (Coquillett). 



Hilara viridis Coquillett. 

 Proc. Nat, Mus., 1895, p. 395. 



Shining metallic green, the pleura largely black ; antennae, proboscis, hypopy- 

 gium and legs yellowish brown ; eyes separated the width of the lowest ocellus ; 

 proboscis slightly shorter than the height of the head ; halteres black ; pile and 

 bristles of entire body black ; scutellum bearing only two bristles ; wings hyaline, 

 veins yellowish, anterior branch of the third vein perpendicular to that vein. 

 2.5 mm. 



Jamaica, West Indies (Cockerell). 



Hilara aurata Coquillett. 

 Proc. Wash. Acad. Sci., 1900, p. 4U. 



Black, the first two antennal joints and the legs dark brown, the knees and 

 halteres yellow ; upper part of the occiput and sides of the front velvet black, 



middle of front below the lowest ocellus, face, cheeks and lower part of the occi- 

 put gray pruinose; eyes of male almost as widely separated as the posterior 

 ocelli, third joint of the anteunai conical, slightly longer than broad, subequal in 

 length to the style, proboscis as long as the height of the head, hairs of palpi and 

 underside of the head whitish, those of the occiput yellowish brown ; thorax 

 slightly polished, marked with three, indistinct, black vittae, almost bare, in the 

 middle, behind the suture, with a golden yellowish pubescence, no hairs in front 

 of the halteres, scutellum bearing four bristles and a few short hairs; abdomen 

 slightly polished, its hairs yellow, hypopygium of male small, nearly bare; legs 

 destitute of long bristly hairs, first joint of front tarsi of the male greatly 

 swollen; wings hyaline, veins yellow, stigma pale yellowish, venation normal. 

 4 mm. 



TRANS. AM. ENT. SOC, XXVIII. AUGUST, 1902 



