ALLOCHKOMA. 



ISO 



punctato, rufo ; elytris latis, punctato-stnatis, nigris, fascia 

 transversa media jiava, sutura quoque a fascia ad scutellum 

 lateflava ; antennis jiliformibus, fuscis ; pedibus fiavis. 



Long. corp. 2\ lin., lat. 1-1-j lin. 



Oval, broad, depressed, obsoletely pubescent, rufous. Head very 

 short, vertical, slightly produced ; eyes large, prominent, extending 

 laterally as far as the line of the margin of the thorax : from the 

 labrum a longitudinal carination extends upwards to the insertion of 

 the antennas ; on either side of this are two other obliquely transverse 

 carinations extending to the sides of the mouth ; above the insertion 

 of the antennas, and between the eyes, is a transverse fovea : the sur- 

 face in front is glabrous, near the basal margin punctate, rufous. 

 Thorax transverse, rectangular, slightly constricted towards the 

 base ; the anterior angles are depressed ; the surface is thickly punc- 

 tate, rufous. Scutellum triangular, flavo-rufous. Elytra much 

 broader than the thorax, depressed, coarsely punctate-striate, dark 

 cinereous black : a broad postmedial flavous fascia extends from the 

 margination to the suture ; its lower boundary (as it approaches the 

 suture) inclines slightly towards the apex ; upon its anterior margin 

 it is rounded oif from the margination upwards, extending obliquely 

 towards the scutellum, and bounded at the scutellary angles by the 

 second stria ; this flavous fascia is clothed throughout with yellow 

 pubescence, the extreme apex of the elytra being clothed with white 

 pubescence. Antenna; filiform, attenuate, fuscous, the basal joint 

 being flavous. Legs entirely flavous. 



From the district of the Eiver Amazon. 



9. Allochroma venustiun. 



A. ovatum, rohustum, impubescens, punctato-striatum, flavo-ferru- 

 gineum ; capite brevi, inter ocidos foveolato, granulato ; thorace 

 transverso, ad basin depresso, punctato ; elytris robustis, punctato- 

 striatis (ad apicem obsolete), ante medium transverse subdepressis, 

 subtiliter pmbescentibus ; antennis Jiliformibus, robustis, sidtin- 

 crassatis,Jlavis, art. 7-10 fuscis ; pedibus flavis. 



Long. corp. 2 lin., lat. 11 lin. 



Ovate, robust, impubescent, punctate-striate, flavo-ferrugineous. 

 Head short, slightly produced in front ; above the labrum is a trans- 

 verse triangular depression ; eyes tolerably globose, black, situated 

 nearly at the base of the head, extending laterally nearly as far as 

 the anterior angles of the thorax ; between the eyes is a medial 

 longitudinal fovea ; the surface is finely granulated. Thorax trans- 

 verse (almost quadrate), slightly constricted towards the apex ; the 



