atyphus. 177 



Var. A. Scutellum flavous, and the elytra sparingly clothed with 

 very fine pale pubescence. 



Var. B. Scutellum flavous, and the elytra clothed with thick and 

 short squamose pubescence. 



Var. C. Scutellum black, and the elytra covered with short and 

 thick squamose pubescence. 



2. Atyphus flaviventris. 



A. oblongus, parallelus, subcylindricus, niger ; capite transverso, 

 subproducto, ad basin punctata ; thorace transverso, ad basin 

 oblique depresso, impunctato, obsolete pubescent'i-flavo ; elytris 

 parallelis, subrobustis, punctato-striat is, obsolete pubescentibus, 

 nigris; antennis Jiliformibus, nigris ; pedibus nigris. 



Long. corp. 3 lin., lat. 1| lin. 



Oblong, parallel, subcylindrical, black. Head short, transverse, 

 very slightly produced in front ; eyes large, tolerably prominent ; 

 between the base of the antennae and the labrum is a transverse 

 triangular plane, bounded at its upper margin by two oblique ridges ; 

 immediately above the base of the antennae are two obsolete eleva- 

 tions ; the surface is coarsely punctate and black. Thorax trans- 

 verse ; the anterior angles depressed and subacute ; the sides mar- 

 ginate ; at the base is a broad and shallow transverse depression, 

 which extends obliquely upwards towards the anterior angles ; the 

 surface impunctate and obsoletely pubescent, flavous. Scutellum 

 triangular, black. Elytra parallel, subrobust, punctate-striate, 

 clothed throughout (as seen under a high power) with obsolete pu- 

 bescence ;1 black. Antennce filiform, black. Legs black. 



Brazil. In the collection of M. Chevrolat. 



3. Atyphus comes. 



A. oblongus, subparallelus, subpubescens, flavo-ferruginens ; capite 

 transverso, ad basin antennarum subtiliter bituberculato, subpu- 

 bescenti, granulato, fulvo-fiavo ; thorace transverso, ad basin et 

 latera depresso, testaceo-pubescenti, fulvo ; elytris robustis,punc~ 

 tato-striatis, pallide pubescentibus, fidvo-ferrugineis, lineis clua- 

 bus suturaque fusco-nigris ; antennis filiformibus, fuscis ; pedi- 

 bus fulvis, femoribus posticis tarsisque anterioribus fuscis. 



Long. corp. 2^ lin., lat. 1 lin. 



Oblong, subparallel, robust, subpubescent, flavo-ferrugineous. 

 Head transverse, slightly produced in front ; above the labrum is a 

 transversely triangular plane depression; between the eyes, and imine- 



N 



