ART. 31 BUPEESTID BEETLES FROM BOLIVIA FISHER 25 



Described from a unique female collected at the type locality dur- 

 ing November, 1921. 



AGRILUS AURITUS Chevrolat 



Affrilus auritus Chevrolat Silberinann's Rev. Ent., vol. 5, 183S, pp. 93-94. 



One example collected at Rio Colorado, Bolivia, during September, 

 1921. 



This beautiful species is quite distinct from most of the species of 

 Agril'us. It is much flattened above, elytra nearly parallel, black, 

 with the front of head and sides of the pronotum reddish, the anten- 

 nae strongly pectinate, and should probably be taken as the type of a 

 new genus. 



GERALIUS FURCIVENTRIS (Chevrolat) 



Stenogaster furciventris Ciikvrolat, Silbermann's Rev. Ent., vol. 5, 1838, pp. 

 88-89. 



Two specimens of this species were collected at Rosario (Lake 

 Rogagua), during November, 1921. 



PARAGRILUS PURPUREUS, new species 



Male. — Narrowly elongate, and moderately shining; above black, 

 with a strong purplish tinge; beneath piceous with a feeble aeneous 

 or cupreous reflection. 



Head feebly convex, not flattened behind the epistoma, but with a 

 round, moderately deep depression on the front, and a feeble longi- 

 tudinal groove on the vertex, the groove not extended on the occiput; 

 surface glabrous, coarsely and densely granulose, with the punctures 

 only obsoletely indicated ; antennal cavities nearly contiguous ; epis- 

 toma broadly, but feebly arcuately emarginate in front. Pronotum 

 moderately, regularly convex, slightly wider than long, feebly nar- 

 rower in front than behind; sides when viewed from above, feebly 

 arcuately expanded from anterior angles to apical fourth, then 

 nearly parallel to the posterior angles, which are obtusely rounded; 

 anterior margin bisinuate, with the median lobe broadly rounded; 

 base deeply, arcuately emarginate on each side, with the median lobe 

 strongly produced, broadly truncate, and feebly emarginate in front 

 of scutellum; surface with a broad, shallow depression, extending 

 obliquely from near the lateral margin at middle to the elytral lobe, 

 then transversely along the base, and more deeply depressed in front 

 of scutellum, densely, coarsely granulose, and rather sparsely obso- 

 letely punctate, the punctures large, ver}^ shallow, denser toward the 

 sides, and forming more or less distinct transverse or broadly arcuate 

 rugae on the disk. Scutellum triangular, acute at apex, with the 

 surface densely and coarsely granulose. Elytra with the sides 

 broadly rounded behind the humeral angles, strongly, broadly arcu- 



