neir genus and species of Halticina:. 597 



Head granulose-strigose ; front separated from the face by 

 a deep groove; eyes large, bordered above by a sunken oi-bit, 

 encarpaj obsolete; antennae with the six lower joints fulvous, 

 the rest piceous. Thorax nearly twice as broad as long ; 

 sides straight, obliquely narrowed from base to apex, the 

 anterior angle thickened, obliquely truncate ; upper sur- 

 face distinctly but not very strongly punctured, the inter- 

 spaces smooth and shining. Elytra ovate, convex, strongly 

 punctate-striate : interspaces slightly convex on the inner 

 disk, those near the outer border subcostate. 



Very nearly allied to the preceding, and possibly a 

 variety. 



Plectroscelis compressipes. 



Ovata, convexa, supra obscure cuprea, subnitida, subtus 

 picea, tibiis compressis, tarsis antennisque fulvis ; thorace 

 punctulato, minute granuloso; elytris fortiter punctato- 

 striatis, striis sulcatis, interstitiis convexiusculis, iis ad 

 latera convexis. 



Long. 1 lin. 



Hab. — Guinea (Camaroons). 



Head subtrigonate; vertex subopaque; front separated 

 from the face by a deep groove, which curves uj^wards 

 at either end, and rmis parallel for some distance with the 

 inner margin of the eye; space between this groove and 

 the eye, together with the clypeus on either side the 

 carina, impressed with round, deep fove»; carina broad, 

 oblong, its loAver extremity angulose, its surface flattened ; 

 encarptfi remote, linear, oblique, their inner and outer 

 margins not defined. Thorax nearly twice as broad at 

 the base as long ; sides nearly straight, converging fi'om 

 base to apex, rather more quickly converging towards the 

 anterior angles; the latter thickened, subacute, hinder 

 angles acute; surface minutely gramdose-punctate, finely 

 but not very closely punctured. Elytra strongly punc- 

 tate-striate, interspaces smooth and shining, impressed 

 with a few minute punctures (visible only under a deep 

 lens), moderately convex on the inner disk, strongly con- 

 vex and almost costate towards the outer border. Tibiae 

 compressed. 



Plectroscelis australica. 



Anguste ovata, convexa, cuprea, nitida, subtus cupreo- 

 ffinea, pedibus (femoribus posticis a?neis exceptis), anten- 



