120 Mr. H. W. Bates on tie 



8. Acyphoderes odyneroideSj White. 



Acyphoderes odt/neroides, White, Cat. Long. Col. Brit. Mus. p. 196, 

 pi. 5. f. 3. 



E. Tapajos, Amazons. 



The apex of the elytra in this species is prolonged into a 

 very sharp point. The species is an exact mimic of the wasp 

 PoJyhia liliacea, F., found abundantly in the same localities 

 and frequenting the same flowers. 



II. Apex of elytra emarginate-truncate. (Thorax with dorsal 

 ridges.) 



9. Acyphoderes acutipenms, Thomson. 

 Acyphoderes acutipennts, Thomson, Classif. des Ceramb. p. 179. 

 Mexico. 



Genus Beomiades. 



Thomson, Syst. Ceramb. p. 165 ; Lacord. Genera, vol, viii. p. 506. 



This differs from Acyphoderes only in the short cuneiform 

 el}i:ra, which barely pass the base of the first abdominal seg- 

 ment, and are scarcely dehiscent at the suture. B. hracliypte- 

 rus bears the closest resemblance to Acyphoderes auridentus, 

 even to the tubercle on the anterior part of the prosternum. 

 Lacordaire was unacquainted with the male, which differs from 

 the female only in the less dilated antenute and the eyes 

 reaching nearly to the median line of the forehead. 



Bromiades hrachypterus, Chevr. 



Brotniades brachypierus, Chevrolat, Rev. Zool. 1838, p. 285, 



Cuba and Sta. Marta, New Granada. 



A specimen from the latter locality in my collection differs 

 from the Cuban form in having the hind legs wholly tawny 

 red, with the exception of the two apical joints of the tarsi, 

 which are black. 



Genus Sphecomoepha. 



Newman, Entom. Mag. v. p. 396; White, Cat. Long. Col, Brit. Mus. 



p. 197. 

 Syn. Sphecogaster, Lacord. Genera, vol. viii, p. 471. 



Lacordaire placed this genus in his group Necydalides^ al- 

 though its characters interfered much with the compactness of 

 his definition of the group, as shown by his citing it often as 

 an exception. In fact it is merely an extreme form of Rhino- 

 tragime much modified probably by mimetic adaptation. The 

 anterior cox£e are certainly much exserted, but not more so 

 than in Isthmiade and in many Odontocerce and Ommatce, in 



