246 HYPOLAMPSIS. 



Oblong-ovate, parallel, subcylindrical, fusco-piceous, clothed with 

 a white hoary pubescence. Head short, somewhat depressed ; eyes 

 large, prominent, situated at the base of the head, and extending 

 beyond the anterior angles of the thorax ; the surface below the 

 base of the antennae is rufous ; above thickly punctate, and in colour 

 fusco-piceous. Thorax quadrate, distinctly constricted at the base ; 

 the anterior angles are depressed, the sides are marginate; the 

 surface is transversely subdepressed at the base. Scutellum small, 

 triangular. Elytra parallel, subcylindrical, broadly and distinctly 

 punctate -striate ; a slight antemedial depression extends obliquely 

 upwards from the suture. Antennae, tolerably long, with a tendency 

 to dilatation near the apex; in colour fusco-flavous. Legs flavo- 

 testaceous. 



From Santarem (district of the Kiver Amazon). In the collection 

 of Mr. Bates. 



19. Hypolampsis atra. 



H. oblongo-ovata, subparallela, impubescens, picea; capite brevi, 

 granulato ; thorace transverse, rectilineari, ad basin leviter trans- 

 verse depresso, punctato ; elytris subparallel is, ante medium ob- 

 lique depressis, punctato -striatis ; antennis ad apicem subdila- 

 tatis, ferrugineis, ad apicem, etiamque art. 1 et 2, fuscis ; pedibus 

 rufo- ferrugineis, femoribus posticis fuscis. 



Long. corp. 11 lin., lat. % lin. 



Oblong-ovate, subparallel, impubescent, piceous. Head transverse, 

 slightly produced ; below the base of the antennae are two obliquely 

 transverse carinations ; the eyes are situated at the base of the head ; 

 the surface is distinctly granulated. Thorax transverse, rectangular, 

 rectilinear ; the anterior angles are depressed and subacute ; the 

 sides are marginate ; at the base is a slight and obsolete transverse 

 depression (not broad and well-defined, as in H. nigrina) ; the surface 

 is finely and thickly punctate. Scutellum triangular, obsolete. Elytra 

 subparallel, antemedially depressed, and punctate-striate. Antennae 

 slightly dilated at the apex ; in colour rufo-fermgineous, the apical 

 joints and also the first and second being fuscous. Legs rufo-ferru- 

 gineous, the posterior femora being fuscous. 



This species diifers from H. nigrina in the form of its thorax, of 

 which the lateral margins are rectilinear and parallel ; there is also 

 an entire absence of any transverse depression near the anterior 

 margin of the thorax. 



From the Island of St. Paul. In the coUection of Mr. Water- 

 house. 



