498 (122) Mr. G. R. Crotch's Revision of 



minus denticulata, subapicalique recta denticulata, flavis. L. 

 3ilin. 



Amazons (Bates). 



The basal fascia here is somewhat oblique, following the 

 external margin a little, and thus approaching B. circulus. 



Brachysphcenus circulus. 



Braclii/sphcemis cirmdus, Lac. Erot. 307. 



Cayenne, Pebas (Janson). 



The yellow rrng is equally broad and not denticulate. 



Brachysplioenus zonula. 



Brachysphcenus zonula, Crotch, Cist. Ent. \Vl. 

 Ecuador (Buckley), Nicaragua (Janson). 



BrachysphcBnus duplicatus. 



Brachysphcemus duplicatus, Lac. Erot. 299. 

 mediatus, Lac. Erot. 305. 



Columbia. 



Distinct by the smooth elytra; presternum compressed; no 

 coxal lines. 



B. mediatus is a variety with the discoidal black fascia obsolete, 

 leavinor a broad fulvous band. 



Brachysphcenus luteoniger, sp. n. 



B. dtiplicato affiuis, sed elytris fescia latissiina lutea, tertia 

 apicali, puncto basali humeroque solis nigris. L. 3^ lin. 



Ecuador (Buckley). 



This is very like B. duplicatus var, mediatus, and possibly 

 may sometimes have a discoidal fascia. The smooth elytra dis- 

 tinguish it from all except B. duplicatus. 



Brachysphcenus sedeoimpunctatus. 



Bracliysphoenus \Q-j)unctatus, Lac. Erot. 309. 

 Cayenne. 



The thorax is almost quadi'angularly emarginate in front; 

 no coxal lines. 



Brachysphcenus pithecius.* 



Brachysplujenus 2iithecius, Lac. Erot. 309. 

 Cayenne. 



