147 



Worth, Fla.; Texas, aud Colorado. (Essai sar les Myodaires, p. 35; 

 1830. Jurinia adiista van der Wulp, Biologia Ceut.-Amer., Diptera, 

 Vol. II, p. 28; April, 1888. Jurinia hystrix Will, mm Fabr., Biauer and 

 Bergenstamm in litt.) metallka Desv. 



Genus JURINELLA, Br. and Berg. 



Jiirinelhi Brauer and Bergenstamm, Zweif. Kais. Mas. Wien, IV, p. 132; 1889. 

 Pseudohystricia Braiier and Bevgenstamni, lot', cit. 



This synonymy is original with the writer. Our species have four 

 postsutural and three sternoijlenral macrochfeta' : 



Thorax densely yellowish polliuose, the hairs and those of the face 

 and cheeks pale yellowish; abdomen strongly tinged with blue; 

 length, 14 to 17 mm. Colorado, (l)iptcres Exotiques, Supple- 

 ment I Y, p. 115 [172] ; 1849 : HyfitHcia. Pseudohystricia amhiyua 

 Macq., Brauer and Bergenstamm in litt.) ambi(/ua Macq. 



Thorax lightly bluish gray polliuose, 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 208; 

 October, 1886 : Hystricia.) sqror Will. 



