214 



THE CANADIAN ENTOMOLOGIST. 



Humeri subacute. Face carinate and closely rugulose between 

 the eyes ,viridifrons Champ. (Cent.Amer.) 



Humeri acute. Face carinate, but almost smooth between the 

 eyes acutangulus Champ. (Cent. Amer.) 



Ochteriis banksi, n. sp. 



Broad ovate, brownish black. The head, behind the vertex, 

 opaque, from there anteriorly, shining and obilquely, finely regulose 

 and tricarinate; one carina next each eye and a median one, con- 

 tinuous from vertex to apex; transversely sulcate midway between 

 ocelli and base of head. Pronotum with anterior margin almost 

 truncated, with the anterior angles next the eyes rounded and not 

 projecting forwards or outwardly beyond the exterior margin of the 

 eyes; entire lateral margins gently rounding posteriorly; humeral 

 angle rounded, not very prominent; lateral margins broadly ex- 

 panded, pale; this mark broadest 

 about the middle, more abruptly 

 rounded anteriorly and tapering 

 posteriorly to occupy the entire mar- 

 gin; the remainder of the surface 

 brownish black, elevated and trans- 

 versely, but not very deeply, sulcate 

 a very little behind the middle; pos- 

 terior lobe, middle and anterior part 

 of first lobe more coarsely punctate, 

 the latter with two or three trans- 

 verse weak furrows. Scutellum almost 

 equilateral, rather coarsely punctate 

 and transverseh^ furrowed; anteriorly 

 with a transverse elevated ridge, 

 behind which it is depressed. Corium 

 not demarked from membrane, broad- 

 est across the middle, with lateral 

 margin gently rounded to just beyond 

 middle, where it more abruptly rounds 

 ofT to the rather narrow apical part of membrane; the external 

 margins either broadly pale throughout or in part sulTused with 

 fuscous and refiexed. without the usual series of pale marginal spots 



Fig. 9. 

 Ochteriis banksi, n. sp. 



