AMERICAN DIPTERA. 271 



Hilara migrata Walker. 

 List, etc., p. 491. 



Body black, hairy; eyes piceous ; feelers and lip black, the latter short; legs 

 dark tawny, clothed with short black hairs; wings gray ; wing-ribs, veins and 

 poisers piceous ; wing-brands brown. 2 mm. 



Hudson's Bay- 



New species of Hilara. 



Hilara baculifer sp. nov. (Fig. 96). 



Length 3.25 mm.— Gray-black. Head opaque, dirty gray -brown, black-bristly ; 

 eyes deeply notched at the antenna. Antenna; black, somewhat shorter than 

 the head, third joint elongate, lanceolate, with a thickened arista a little shorter 

 than itself. Proboscis black, one-half to two-thirds the height of the head. Palpi 

 black, directed forwards, strongly beset with black hairs below. Thorax dull 

 brownish gray, dorsum with three brown bristly vittae extending to the scutel- 

 lum. scutellum with four marginal bristles. Abdomen moderately shining on 

 the upper surface, hypopygium not elongate, its lateral pieces not very shining, 

 a mid-dorsal, anteriorly directed, terminal process present. Legs piceous, moder- 

 ately shining, with black pubescence and bristles, the anterior tibige two-thirds 

 of the length of the femora, moderately incrassate, on outer edge bearing a fringe 

 of long bristles, closely placed near tip; anterior metatarsi greatly lengthened 

 and thickened, in length exceeding the femora, with no long bristles, remaining 

 tarsal joints short and thick. Wings evenly infumated, stigma a little darker, 

 veins brown, strong. 



The halteres are broken from all the specimens. 



Thirty-two specimens; Tifton, Georgia, 1896. 



This species is very distinct in the structure of the front pair of 



legs. 



Hilara bella sp. nov. (Fig. 94). 

 Male. 3.5 mm.— Black, sparsely cinereous-pollinose. Head black, vertex and 

 occiput velvet black, opaque. Face cinereous; a shining black triangle en- 

 croaches on the vertex above the antennae. Antennae black, short, less than one- 

 half the length of the head, third joint conical, a little longer than its thickened 

 style. Eyes shallowly emarginate at antennae. Palpi black, with both pale and 

 black hairs; proboscis black, not exceeding one-third the height of the head. 

 Dorsum of thorax very lightly pale pubescent, almost blue-black when viewed 

 from in back, subshining, cinereous when viewed from in front, the serial bris- 

 tles pale, very short ; pleurae and coxae cinereous. Abdomen finely cinereous, 

 subshining, venter more gray ; hypopygium cinereous, with smooth side pieces 

 bearing a small posterior fringe of yellow hairs. Anterior faces of coxae covered 

 with yellow hair; femora and tibiae subshining, black, except knees, tarsi more 

 opaque black ; anterior metatarsi moderately enlarged, slightly longer than the 

 rest of the tarsus, not pilose ; posterior tibia and tarsi densely covered with pale 

 hairs. Halteres infuscated. Wings clear hyaline, veins firm, fuscous, stigma 

 very obsolete, second submarginal cell normal. 



A single male collected by Dr. Hough in Massachusetts. 



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



