142 
being a subgenus of Archytas. 1 All of our species have the third 
antennal joint strongly convex on the upper side, four postsutural and 
three sternopleural macrocliretie : 
1. Sides of face bearing black hairs, abdomen shining, not pollinose . . 3. 
Sides of face destitute of black hairs; calypteres 'whitish 2. 
2. Abdomen subopaque, marked with large gray pollinose spots; black, 
the head except the occiput, the first two joints of antennae, 
palpi, fourth abdominal segment largely, and sometimes the 
sides of the second, yellowish; thorax subopaque gray pollinose, 
marked with four black vittse; length, 10 mm. Waco, Tex., and 
Jamaica, West Indies. (Tijdschrift voor Entomologie, Vol. 
X XVI, p. 2:> ; 1883 : Echinomyia.) piliventris v. d. W. 
Abdomen shining, tinged with blue, not pollinose except the fourth 
segment; thorax opaque gray pollinose, with a strong brassy 
tinge, marked with five black vittaB, scutellum yellow, some- 
times the sides and tip of the abdomen are more or less yellow; 
length, 11 to 15 mm. Toronto, Canada; White Mountains, New 
Hampshire; New York, N. Y.; District of Columbia; northern 
Illinois; Missouri; Georgia: Waco, Tex.; northern California, 
and Jamaica. West Indies. (SystemaAntliatorum, p.311j 1805: 
Tachina. Jurinia amethystina Macquart, Dipteres Exotiques, 
Vol. II, Part II, p. 199 [12], 1812; and Supplement I, p. 147. 
Inch hia apicifera Walker, List of Dipterous Insects, Part IV, 
p. 718; 1849. Tachina californicB Walker, Insecta Saundersiana, 
Vol. I, p. 270; 185(5. Archytas sp., Brauer and Bergenstamm in 
lift. ) analis Fabr. 
3. Calypteres whitish 4. 
Calypteres brown, thorax shining bluish, the front end grayish x>olli- 
nose and marked with four black vittse, abdomen shining red- 
dish, strongly tinged with pale blue; length, 13 to 10 mm. New 
Bedford, Mass.; Cumberland Gap, Ky.; Florida; Egypt, Ga.; 
Holly Springs, Miss. ; Baton Rouge, La., and Kansas. (Systema 
Entomologie, p. 777; 1775: Musca, Jurinia boscii Desvoidy, 
Essai sur les Myodaires, p. 3G; 1830. Echinomyia georgica 
Macquart, Histoire Naturelle Insectes, Dipteres, Vol. II, p. 79; 
1835. Jurinia virginiensis Macquart, Dipteres Exotiques, Sup- 
plement IV, Part II, p. 144 (171); 1851. Jurinia fuscipennis 
Jaeunicke, Xeue Exot. Dipt., p. 83 (391); 1807. Jurinia hys- 
tricoides Williston, Trans. Am. Ent. Soc, Vol. XIII, p. 300; 
October, 1880. Archytas hystricoides Will., Brauer and Ber- 
genstamm in litt.) hystrix 2 Fabr. 
l Loc. cit., VII, p. 613. 
2 In the Zweif. Kais. Mas. Wien, IV, p. 133, Brauer and Bergenstamm refer this 
species to the present genus from au examination of specimens which Wiedemann 
compared with the type specimen of hystrix and declared them to be identical with 
the latter. 
