THE CANADIAN ENTOMOLOGIST. 97 



Baccha not at a, Loew, Diptera Americce septentrionalis, Cent. VII., 6s, 

 iS6i. 

 Male. — "Ochraceous; vertical triangle and spot on the 

 front, black j dorsum of thorax, except lateral border, dark 



OCHRACEOUS, marked MEDIALLY WITH A GREENISH - BLACK STRIPE ; 

 ABDOMEN WITH DARK LINES ; WINGS INFUSCATE, TOWARDS COSTA LUTES- 

 CENT. 



" Head luteous ; occiput cinereous ; vertical triangle black ; front 

 opaque, black pilose, and with a minute black spot ; frontal lunule naked, 

 near the antenn?e black. Antennte ochraceous. Face light ochraceous, 

 semi-transparent, entirely shining. Thorax ochraceous ; dorsum, except 

 the wide lateral margins, dark fuscous, with two median lines abbreviated 

 posteriorly and double lateral marks shining virescent. Scutellum 

 ochraceous ; metanotum bronzy - black ; pectus marked with black. 

 Abdomen ochraceous, with fuscous longitudinal lines ; hypopygium 

 bronzy-black. Legs ochraceous ; apical third of posterior femora and 

 posterior tibiae, except a wide subbasal annulus, subfuscous. Wings 

 infuscate, towards costa yellowish ; marginal and apex of the submarginal 

 cells distinctly coloured with fuscous." [Translation.] 



One specimen, a male, agrees in almost all respects with Loew's 

 description. The coloration of the wings is much less marked, however. 

 They are subhyaline, iridescent, costa tinged with testaceous. The 

 posterior femora are testaceous except a dark annulus on apical third ; 

 the posterior tibiae except basal third are dark. The abdomen is 

 furnished with moderately long light pile, especially on the first and 

 second segments. First segment, except a broad, uninterrupted band on 

 posterior margin, yellow; second segment fuscous subtranslucent with a 

 distinct light band just beyond the middle ; remaining segments yellow, 

 except the lateral margin and four slender black bands slightly expanded 

 at the apex. Third joint of antennae very short ; oval. 



One specimen [Charlotte Harbour, Florida; Mrs. Slosson]. This 

 species was described by Loew, in 1861, from a specimen collected by 

 Gundlach, in Cuba. The present is the first record of its capture since 

 that time and the only record of its occurrence in the United States. 



My thanks are due to Prof. Williston for aid in determining this 

 specimen. 

 Eristalis latifrons, Loew. 



This is a very widely-distributed and common species in the West. 



