10 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 7T 



tubercles or carinae; surface densely ocellate-punctate and sparsely 

 clothed with long, inconspicuous hairs toward the sides. Scutellum 

 triangular, and rather densely clothed with long, recumbent yellow 

 pubescence. 



Elytra extending to middle of third abdominal segment, with the 

 tips transversely truncate and vaguely emarginate, the sutural mar- 

 gins slightly elevated, slightly narrowed, and moderately dehiscent 

 posteriorly; surface with the opaque areas coarsely, confluently 

 punctate, and clothed with a few scattered hairs in the basal regions, 

 the vitreous areas glabrous, and sparselj^, obsoletely punctate. 



Abdomen beneath sparsely, coarsely punctate, except the basal 

 segments, and sparsely clothed with long, recumbent yellow pubes- 

 cence. Sternum sparsely clothed with long, semierect yellow hairs. 

 Anterior and middle legs short, and the femora strongly, abruptly 

 clavate. Posterior legs long, and sparsely clothed with long, stiff, 

 erect black and yellow hairs intermixed, the femora strongly, ab- 

 ruptly clavate, and the tibiae nearly straight and cylindrical. 



Length, 11-14 mm. ; width, 2.6-3.2 mm. 



Type locality. — Eio Frio, near Santa Marta, Colombia. 



Type and paratypes. —C?it. No. 42823, U. S. N. M. 



Paratypes. — Darlington collection. 



Described from five females (one type) , all of which were reared 

 during May, 1928, from the dead wood of Triplaris species collected 

 at the type locality by P. J. Darlington, jr. Scarcely any variation 

 was observed in the specimens examined, except that in two of these 

 examples there are two small black spots between the eyes on the 

 occiput. 



This species is very closely allied to buscki Fisher, but it differs 

 from that species in being more robust, with the eyes more narrowly 

 separated from each other on front of head, antennae entirely red- 

 dish brown, and the anterior and median transverse fasciae on the 

 pronotum not connected to each other by a longitudinal median black 

 vitta. With a larger series for study, this form may prove to be 

 simply a color variety of that species, but since this form is connected 

 up with its host plant, it seems advisable to separate it from that 

 species, at least for the present. 



ACYPHODERES CRIBRICOLLIS Bates 



Acyphoderes cnbricollis Bates, Trans. Bnt. Soc. London, 1892, p. 160, pi. 6, 

 fig. 6. 

 This species was described from three males from Ventanas in 

 Durango, Mexico. A small series including both sexes were col- 

 lected by Ferd. Nevermann at Hamburg farm, Costa Rica, August 

 15, 1923, on fallen " QuaraHhea turhinataP This is a very elongate 



