32 ^ H. C. HUCKETT 



Hylemyia sepia Meigen 



1826 Anthomyia sepia Meig. Syst. Beschr., vol. 5, p. 152. 



1865 fAnthomyia haberlandti Schin. Verb. Zool.-Bot. Ges. Wien., vol. 15, p. 999. 

 1911 Adia flexicauda Schnb. and Dzied. 'Die Anthom3aden, p. 97. 

 Locality. — 1 9 , Hempstead, Long Island, April 10, 1921. 



Hylemyia setigera Johannsen 



1916 Hammomyia setigera Job. Trana. Amer. Ent. Soc, vol. 42, p. 387. 



" Localities.— Qt>, 29, Lakeville, Long Island, May 16, 1921; 12 6, 19, May 22, 1921; 

 2 6,39, Glen Head, Long Island, May 19, 1921; 86,29, June 4, 1921; 1 6 , Danby (near 

 Ithaca), June 4, 1916 (collected by E. G. Anderson); 1 6 , Rock City, June 9, 1915; 16,19, 

 Eingwood (near Ithaca), June 26, 1920; 19, Buttermilk, Ithaca, July 10, 1920. 44 

 specimens: 34 males, 10 females. Figures 11, i52. 111, 173, on plates in this memoir. 



Hylemyia setigera Johannsen most closely resembles H. inornata Stein. 

 The males of setigera differ from those of inornata in the grayish pollen of 

 the abdomen, in the broad, indefinite, subtriangular fasciae composing 

 the dorsocentral vitta, and in the form of the genitalia. 



Hylemyia setitarsata sp. nov. 



Male. — Black, the thorax a dull drab color, the abdomen with dense whitish gray prui- 

 nescence. Head black; parafrontals, parafacials, and cheeks whitish gray pruinose, with dark 

 reflections. Antennae and palpi black. Thorax, viewed from above and behind, with the 

 presutural and humeral regions covered with a Hght grayish pollen; a distinct brownish 

 median vitta, and traces of sublaterals; postsutural region and scutellum almost entirely 

 blackish. Abdomen, viewed from above and behind, with a somewhat broad, black, dorso- 

 central vitta, each part of which broadens sUghtly anteriorly to fuse with the blackish tergal 

 incisures. Legs black. Pulvilli white. Wings infuscated, veins brownish. Calyptrae 

 white. Halteres yellow. 



Eyes separated, at narrowest part, by a distance equal to that between posterior ocelli; para- 

 frontals separated posteriorly by a thin frontal vitta. Head, in profile, with the facial margin 

 almost vertical, a slight concavity about the middle; cheeks nearly as wide as length of tlm-d 

 antennal segment, with a conspicuous tuft of a few upturned bristles near vibrissae. Antennae 

 short; second segment with a few longish setae; third segment three-quarters as broad as 

 long; arista bare, the proximal part noticeably thickened. Thorax with a series of paired 

 acrosticals, one presutural pair well developed, the others weaker. Pra short, less than half 

 length of the following bristle. Sternopleurals, 1 : 2. Abdomen short, depressed, parallel- 

 sided, tapering sHghtly caudad, covered with stiff, erect bristles and setae; hypopygium very 

 large and promioent; processes of fifth sternum with short setae, apices fringed with a row of 

 stout spinules. Legs bristly. Fore tibia with a weak median and apical posteroventral bristle; 

 apical region of dorsal surface with nxmierous longish bristles and setae. Mid femur with a 

 few weak setulose bristles along proximal region of antero- and posteroventral surfaces; 

 mid tibia with a conspicuous dorsal tuft of longish bristles and setae throughout distal half; 

 posterior and posteroventral surfaces with one or two weak bristles; a strong ventral apical 

 bristle. Hind femur with a complete row of anteroventral bristles and an interrupted row 

 of weaker posteroventral bristles; hind tibia with a series of six or seven anteroventral setulae, 

 four or five anterodorsal bristles, and four or five posterodorsal bristles, the last two series 

 terminating a short distance before apex of tibia; at this interval a series of two or three dorsal 

 bristles; posterior surface with a partial series of setulae; apical bristles very weak. Tarsi 

 compressed except for segment 5, which is somewhat broadened; segments 2, 3, and 4 very short 

 and small, beadlike; mid and hind tarsi with a dense tuft of erect bristles on dorsal and anterior 

 surfaces of segments 1 to 4. Tarsal ckws small; hind pulvilli conspicuous, twice as large as 

 fore or mid pulvilli, winch h^v§ become considerably reduced in size. Wings with costal 



