143 
4. Thorax bluish, subshining, thinly gray pollinose, and marked with 
four black vitta>; abdomen blackish, strongly tinged with blue, 
first joint of arista scarcely longer than wide; length, 10 to 15 
mm. White Mountains, New Hampshire ; Beverly, Mass.; New 
York, K Y.; District of Columbia; Virginia; North Carolina; 
Florida; Tifton, Ga.; Holly Springs, Miss.; Cadet, Mo., and 
Keokuk, Iowa. (Essai sur les Myoclaires, p. o5; 1830; Jurinia. 
Jurinia leucostoma Desvoidy, loc. cit., p. 37. Jurinia smaragdina 
Macquart, Dipteres Exotiques, Vol. II, Part III, p. 196; 1842. 
Tachina atra Walker, Insecta Saundersiana, Vol. I, p. 273; 1856. 
Archytas aterrima Desv., Brauer and Bergenstamm in lift,] 
aterrima Desv. 
Thorax with a bronze tinge, subopaque, gray pollinose and marked 
with four black vittae; abdomen black, with a bluish tinge, the 
sides broadly reddish, first joint of arista usually twice as long- 
as wide; length, 11 to 15 mm. Massachusetts, North Carolina, 
Georgia, Florida, and Colorado. (Dipteres Exotiques, Vol. II, 
Part II, p. 199 [42]; 1842. Tachina candens Walker, List of 
Dipterous Insects, Part IV, p. 720 ; 1849. Tachina iterans Walker, 
1. c, p. 727. Jurinia apicalis Jaennicke, Neue Exot. Dipt., p. 82 
[390]; 1867. Echinomyia victoria Townsend, Annals Mag. Nat. 
Hist., Vol. XIX, p. 14S; February, 1897.) lateralis Macq. 
Genus ECHINOMYIA Dumeril. 
Echinomyia Dumeril, Exposit. Methode Xaturelle Class. Iusectes; 1801. 
Ftibricia Desvoidy, Essai sur les Myodaires, p. 42; 1830. (Xon Blainville, 1828.) 
Mikia Kowarz, Wiener Ent. Zeitung, Vol. IV, p. 51 ; February 1, 1885. 
Pareudora Wachtl, Wiener Ent. Zeitung-, Vol. XIII, p. 110; April 20, 1894. 
Nowiakia Wachtl, loc. cit. 
Pararchytas Brauer and Bergenstamm, Zweif. Kais. Mus. Wieu, VII, p. 614; 1894. 
The two genera of Wachtl are stated by Brauer and Bergenstamm 
to be identical with Echinomyia, and they place Fabricia, Mikia, and 
Pararchytas as subgenera of it. 1 Our species have four postsutural 
and usually three sternopleural macrochaetse : 
1. Small crossvein never clouded with brown 2. 
Small crossvein distinctly clouded, sides of mesonotum, scutellum, 
and abdomen, except sometimes a dorsal vitta, yellowish red; 
base of wings brown; length, 11 to 13 mm. Toronto, Canada; 
White Mountains, N. H.; New Jersey; Colorado, and southern 
California. (List of Dipterous Insects, Part IV, p. 715; 1819: 
Tachina. Jurinia echinata Thompson, Kongliga Svenska Fre- 
gatten Eugenies Resa, Diptera, p. 516; 1868. Tachinodes decisa 
Walk., Brauer and Bergenstamm in litt.) decisa Walk. 
1 Zweif. Kais. Mus. Wien, VII, p. 614 ; 1894. 
