1920] Melander: Nearctic Tetanoceridce 317 



Hemitelopteryx Cresson. 



Hemiteloptervx Cresson, Trans. Am. Ent. Soc. XLVI, 51 (1920). 



Heteropieryx Hendel (not Gray, 1835), Abh. z. b. Ges. Wien, II. 81 (1902); 

 Cresson, 30 (table), 87 (list). 



Head and mouth-parts black, antennse yellow, front velvety, except the 

 shining median stripe; thorax yellowish, with 2 broad stripes and 

 anterior margin black; abdomen black except basal angles; legs mostly 

 yellow, front coxse silvery white, front tibiae and tarsi black, except 

 apical joints; wings blackish; 3.5 mm. N. H., Mass. (Cresson, 51). 



johnsoni Cresson 



Antichaeta Haliday. 



Antichceta Halidav, Ann-. Nat. Hist. II, 187 (1839); Hendel, Abh. z. b. Ges. Wien, 

 II, 78 (1902).' 



Reddish yellow species, at most the front legs piceous; 2 fronto-orbitals. ... 2 

 Head, thorax and abdomen black; 1 fronto-orbital; antennae yellow, palpi 

 black, arista heavily pubescent; sides of front velvety black; upper 

 pleurae shining; front coxae white-pruinose; first vein ending beyond 

 anterior crossvein. Wise* melanosoma, n. sp. 



2. Palpi and third antennal joint black, thorax shining, the notum centrally 



pollinose except for 2 brown vittae, upper pleurae shining; more or less 

 of front femora and tibiae and all tarsi brown, front coxae white; abdomen 

 brown, cf genitalia reddish. Eur., Mass. (Loew coll.) {Sciomyza 

 analis Meigen, Syst. Bes. VI, 15 (1830); Zetterstedt, Dipt. Sc. V. 2104 

 (1846). Antichceta analis Hendel, Abh. z. b. Ges. Wien, II. 79 (1902). 

 Tetaywcera vittata Haliday, Ent. Mag. I. 168 (1833). Sciomyza vittata 



Rondani, Prodr, Dipt. Ital. VII, Sciom. 43 (1868) analis, Meigen 



Palpi and antennae yellowish; pleurae more or less pollinose above 3 



3. Dark ferruginous, thorax heavily pollinose, trivittate with black; front 



coxae and posterior legs yellowish, remainder of front legs piceous; 



eyes deeper than long; 6 mm. Mont.* robiginosa, n. sp. 



Testaceous, notum not vittate; legs yellowish; eyes longer than deep; 

 5 mm. Mont.* testacea n. sp. 



Antichaeta robiginosa new species. 



Female — Length, (i mm. Ferruginous; head testaceous, face and 

 cheeks yellow and overlaid with white pruinosity, a bigeminal silvery 

 white cervical spot on cinereous ground; middle frontal stripe shining, 

 with parallel sides, about one-fifth the width of the front and attaining 

 the suture; front slightly wider than long, a little narrowed anteriorly, 

 the triangular lunule nearly hidden, two fronto-orbitals; eyes large, 

 rounded, face receding at an angle of ninety degrees to the front, cheeks 

 about one-third the diameter of the eye; antennse ferruginous, second 

 joint short, obconic, third joint ovoid, one-half longer than deep, with 

 a slight infuscation above, arista black, finely plumose, but one-half 

 longer than the third joint of the antennse; palpi long, testaceous, 

 black-setose. Mesonotum centrally blackish overlaid with gray pollen, 

 trisected by two narrow opaque stripes of golden brown pollen, a stripe 

 of whitish yellow pollen above notopleural suture; upper pleurae rusty, 

 lower white-pruinose, the ground color of the sternopleura; largely 

 black; thoracic bristles strong, one humeral, two notopleural, one 

 presutural, one supra-alar, two intra-alar, two dorsocentral, no pre- 

 scutellar, four scutellar, no pleural. Abdomen brown, black-setulose. 



