348 Mr. M. Cameron on new Staphylinidae 



39. Scopaus simplicicollls, sp. n. 

 (Fauvel, in Hit.) 



Narrow, elongate, scarcely shining ; head ferruginous ; 

 thorax black ; elytra and abdomen black, the apical border 

 of the former and the posterior margins of the dorsal seg- 

 ments and apex of the latter narrowly reddish testaceous. 

 Antennae and legs reddish testaceous. 



Length 2'3 mm. 



In size, and superficially, resembles S. umbra, Slip. ; but 

 differs from it by the darker coloration, broader, differently 

 shaped head, much coarser puncturation of the fore parts, 

 the absent or very obsolete basal foveae of the thorax, and 

 the male characters. 



Head a little longer than broad, as broad as the eljtra ; 

 temples very slightly dilated and feebly narrowed to the 

 posterior angles, which are rounded, emarginate at the 

 posterior border, closely and finely punctured, finely pubes- 

 cent. Antennae with first joint stout, elongate ; second to 

 sixth longer than broad, gradually decreasing in length ; 

 seventh to tenth globose ; eleventh short, oval. Thorax 

 narrower than the head, distinctly longer than broad, 

 broadest at the anterior angles, which are rounded, abruptly 

 narrowed in front, gradually narrowed behind to the rounded 

 posterior angles ; disc with a very fine median line through- 

 out the entire length, but without or with very obsolete 

 basal foveae ; puncturation close, a little coarser than on the 

 head. Posterior tarsi short. Elytra a little longer than the 

 thorax, distinctly longer than broad, similarly punctured to 

 the thorax, finely pubescent. Abdomen very finely and 

 moderately closely punctured and pubescent. 



$ . Sixth ventral plate with a broad semicircular emar- 

 gination of the posterior border ; fifth ventral plate with a 

 broad, very feeble emargination. 



St. Vincent, Grenada (H. H. Smitli). Type in the British 

 Museum. 



Scopceus umbra, Shp. 



This species was described in the ' Biologia Centrali- 

 Americana' (i. 2, p. 544) from female specimens, the male 

 being then unknown. This sex has the sixth ventral plate 

 narrowly and deeply excised in the middle line ; fifth ventral 

 plate longitudinally impressed in the middle, the impression 

 furnished with short black setae. 



It is found in Grenada (//. II. Smith), Haiti, and Jamaica. 



