147 
Worth, Fla.; Texas, and Colorado. (Essai sur les Myodaires, p. 35; 
1830. Jurinia aclasta van der Wulp, Biologia Cent.-Atner., Diptera, 
Vol. II, p. 28; April, 1888. Jurinia hystrix Will, non Fabr., Brauer and 
Bergenstamin in litt.) metallica Desv. 
Genus JURINELLA, Br. and Berg. 
Jurinella Brauer and Bergenstamm, Zweif. Kais. Mus. Wien, IV, p. 132; 1889. 
Pseudohysiricia Brauer and Bergenstamin, loc. cit. 
This synonymy is original with the writer. Our species have four 
postsutural and three sternopleural macrochsetae : 
Thorax densely yellowish pollinose, the hairs and those of the face 
aud cheeks pale yellowish; abdomen strongly tinged with blue; 
length, 14 to 17 mm. Colorado. (Dipteres Exotiques, Supple- 
ment IV, p. 145 [172] ; 1849 : Hystrieia. Pseudohystricia ambigua 
Macq., Brauer and Bergenstamin in litt.) ambigua Macq. 
Thorax lightly bluish gray pollinose, the hairs and those of the face 
and cheeks black; abdomen not tinged with blue; length, 11 
mm. Colorado. (Trans, Amer. Ent, Soc, Vol. XIII, p. 2<>8; 
October, 1886 : Hystrieia.) soror Will. 
