A Systematic Study op the Anthomyiinae op New York 27 



blackish; arista beyond basal thickening, brownish. Palpi black. Thorax, viewed from above 

 and behind, blackish, with grayish pollen; a trace of a median vitta; humeral region with 

 lighter grayish pollen. Abdomen, viewed from above and behind, with fine whitish pollen; 

 a uniformly narrow, blackish, dorsocentral vitta; terga with a narrow blackish anterior incisure; 

 hypopygium with cinereous pollen, the caudal half of the basal segment piceous, polished, 

 shining. Legs black, subshining. PulvilH infuscated. Wings grayish brown; veins brown- 

 ish; r-m cross-vein with shght traces of infuscation. Calyptrae white. Halteres yellowish. 

 Eyes separated, at narrowest part, by a distance shghtly greater than that between posterior 

 ocelli; parafrontals contiguous; frontal bristles numerous, extending as far as ocelli; vertical 

 bristles well developed, equal in size to anterior pair of ocellar bristles. Parafrontals and 

 parafacials, in profile, prominent, at base of antennae equal in width to the breadth of third 

 antenna! segment, the parafacials receding gradually ventrad; cheeks along ventral border 

 invaded by several upturned setae. Vibrissal, oral, and caudal regions of head clothed with 

 numerous black bristles and setae. Third antennal segment one and one-half times as long 

 as broad; arista almost bare. Thorax with numerous accessory setulae; acrosticals repre- 

 sented by two irregular, closely adjacent rows of setulae; posthumeral bristles duplicated ; 

 pra twice length of posterior notopleural bristle, the latter noticeably short and stout. Sterno- 

 pleurals, 2:3. Abdomen conical, equal in length to thorax; the setae and marginal bristles 

 on mid-dorsal region appressed and considerably reduced in size and length; lateral bristles 

 of discal and marginal regions of terga strong and erect; ventral region of abdomen clothed 

 with dense, fine, black setae; processes of fifth sternum clothed with numerous fine setae. 

 Legs with the femora exceptionally hairy, especially the fore femora. Fore tibia with one weak 

 dorsal seta and two posteroventral bristles. Mid femur with dense, fine setae and bristles on 

 proximal half of ventral and posteroventral surfaces; an obKque row of four preapical bristles 

 on posterior surface; mid tibia with one anterodorsal, two posterodorsal, and four postero- 

 ventral bristles. Hind femur with a complete row of short anteroventral bristles, the length of 

 each not exceeding the breadth of the femur where it is situated; an interrupted row of similar 

 posteroventral bristles; hind tibia with five anteroventral, five or sLx diverse anterodorsal, 

 and five or six diverse posterodorsal bristles; posterior surface with a median series of five or 

 six setulae. Tarsi with stout claws. Costal thorn very small and inconspicuous; m-cu 

 cross-vein sinuous. Upper calyptrae covering the lower. Length, 8 mm. 



Localities. — 1 6 , Hempstead, Long Island, April 10, 192L 

 Type. — In author's collection. 



Hylemyia inconspicuus sp. no v. 



Male. — Black, with grayish drab pruinescence. Head, with parafrontals, parafacials, 

 and cheeks, dark brown, with dense whitish pruinescence. Antennae and palpi black. 

 Thorax blackish; viewed from above and behind, with three distinct vittae, the median one 

 broad, the sublaterals narrow; presutural region of mesonotum with Hght whitish pollen. 

 Abdomen drab grayish, whitish pruinose; dorsum with a broad, black, subtriangul ar spot on 

 each tergum; hypopygium brownish, subshining. Legs black. Wings clear; veins brownish. 

 Calyptrae whitish. Halteres yellow. 



Eyes separated, at narrowest part, by a distance equal to diameter of anterior ocellus; 

 anterior pair of ocellar bristles well developed, equal in length to the longest parafrontal bristles. 

 Parafacials and cheeks, in profile, narrow. Antennae short, third segment twice as long as 

 secoid; arista slightly swollen at base. Thorax with numerous accessory setulae; acrosticals 

 distinct and irregularly paired, with three or four pairs of presutural acrosticals. Pra short, 

 a little less than half length of the following bristle. Sternopleurals, 1 : 2, with a third bristle 

 apparent which is considerably weaker than the upper two. Abdomen clothed with robust 

 black setulae and bristles; processes of fifth sternum not attenuated apicad, but short and 

 stout, with numerous fine apical setulae on inner and outer margins. Fore tibia Tsath a median 

 bristle and a fine pointed apical bristle on posteroventral surface. Mid femur with a series of 

 moderately developed anteroventral bristles along proximal half; posteroventral bristles long 

 and strong, confined also to proximal half; mid tibia with one anterodorsal, two posterodorsal, 

 and two posteroventral bristles. Hind femur with a distinct row of posteroventral bristles, 



