30 PROCEEDINGS OP THE NATIONAL MUSEUM TOUTS 



Belvosia hifasciata Macquart, Dipt. Exot., vol. 2, pt. 3, p. 214 (sep. p. 

 57). — OsTEN Sacken, Cat. N. Amer. Dipt., 1878, p. 153. — Van der Wtjlp 

 Tijdsch. V. Ent., vol. 26, 1883, p. 23; Biologia, Dipt., vol. 2, 1888, p. 30, 

 pi. 2, fig. 8, and 1903, p. 469.— Riley, Fifth Mo. Rept., 1873, p. 140, 

 fig.; Fourth Rept. U, S. Ent. Comm., 1885, p. 110. — Roder, Stett. Ent. 

 Zeit., 1885, p. 345. — Townsend, Psyche, vol. 8, 1897, p. 128. — Coqttillett, 

 Revis. Tachin., 1897, pp. 10 and 84. — Johnson, List Ins. N. J., 1899. — 

 Howard, Insect Book, 1902, pi. 22, fig. 15. — Johnson, Proc. Acad. Nat. 

 Sci. Phila., 1895, p. 332; Bull. Amer. Mus. Nat. Hist., vol. 32, 1913, p. 

 72.— F. H. Snow, Kans. Univ. Sci. BuU., vol. 2, 1903, p. 217.— Willis- 

 ton, Trans. Amer. Ent. Soc, vol. 13, 1886, p. 302; Insect Life, vol. 

 5, 1893, p. 238.— Harvey, Bull. Brit. Col. Ent. Soc, December, 1906. p. 

 2. — Walton, Proc. Ent. Soc. Wash., vol.14, 1912, p. 22. — Reinhard, Ent. 

 News, vol. 30, 1919, p. 280.— Britton, Checklist Dipt. Conn., 1920. — 

 Greene, Proc. U. S. Nat. Mus., vol. 60, art. 10, p. 14, fig. — Brimlet, 

 Ent. News, vol. 33, 1922, p. 20.— Walcott, Checklist Ins. Porto Rico, 

 1923, p. 222.— Johnson, List Dipt. New England, 1925, p. 193. 



Lalage hifasciata Robineau-Desvoidy, Dipt. Env. Paris, vol. 1, 1863, p. 663. 



Willistonia hifasciata Brauer and Bergenstamm, Zweifl. Kais. Mus., pt. 

 4, 1889, p. 97, fig.; pt. 6, 1893, p. 123. 



Latreillimyia hifasciata Townsend, Muscoid Flies, 1908, p. 103. — Johnson, 

 Cat. Ins. New Jersey, 1910, p. 779. 



Male. — Front from 0.40 to 0.45 of the head width at vertex, wid- 

 enmg immediately, as the upper portion of the eye is very narrow, 

 ahnost running to a point. Parafrontals almost silvery below, the 

 pollen becoming thinner upward so as to show the black ground color 

 over a considerable area. Frontal bristles in about three very irreg- 

 ular rows. Face, paraf acials, cheeks, and posterior orbits silvery pol- 

 linose, the parafacials especially shining. Hairs below the lowest 

 frontals black, cheek with black hair. Antennae black, reaching 

 nearly to the vibrissae, the third joint about three times the second. 

 Vibrissae considerably above the mouth, the distance nearly equal to 

 the length of the second antennal joint. Facial ridges bristly to a 

 little below the arista. Palpi varying from yellow to blackish; beard 

 white. 



Thorax black, somewhat shining, with thin pollen anteriorly. 

 Sternopleurals from four to six. 



Abdomen black on first two segments, but the second sometimes 

 showing a trace of pollen at the base; third and fourth segments with 

 broad dense bands of golden pollen covering all but the apical fourth 

 or fifth, which is shining black. The first and second segments each 

 have a single pair of median marginals, the third and fourth a mar- 

 ginal row. Venter without unusual development of soft hair. 



Legs black, front pulvilli noticeably smaller than in most of the 

 species, hardly as long as the last tarsal joint. Hind tibia with sev- 

 eral large bristles on the basal three-fifths of the outer side. 



Wings blackened; front calypters brown, the hind one of the same 

 color, at least on the basal half, tending to become paler on the apical 

 half, especially in southern and western specimens. 



