BY WILLIAM MACLEAY, JUN., ESQ. 137 



postice rotundato lateribus parallelis, elytris elongatis 

 punctorum serie sublaterali. 

 Long. 12 lia., lat. 3 lin. 



This species is long, narrow, and of a glossy black colour. 

 The head is a little wrinkled on the outside of each facial 

 groove, which extends to the base of the mandibles, from a 

 straight transverse depression joining the aforesaid grooves at the 

 back part of the head. The thorax is longer than broad, with 

 the apex truncated, the sides parallel, and the base semicircular ; 

 the medial line is marked with several transverse wrinkles 

 towards the base. The elytra are long and rather narrower than 

 the thorax ; they are slightly concave on the basal margin, and are 

 rounded at the apex, the sides being very nearly parallel ; on 

 each side near the lateral margins there is a row of nine seti- 

 gerous punctures which extends from near the shoulders to the 

 apex. The fore tibi86 are armed externally with two strong 

 subacute teeth. 



This species, though very distinct from the last, is evidently 

 of the same type. The sublateral punctures on the elytra are, so 

 far as I know, peculiar to this insect, though there is an approach 

 to the same thing in G. gagatinwrn. 



I regret that of this species also there is only one example in 

 Mr. Waterhouse's collection. 



6. — Carbnum atronitens. 



Nigrum nitidum subplanum, capite postice trans versim 



impresso, thorace subquadrato postice i-otundato, elytris 



quadripunctatis punctis versus humerum apicemque im- 



pressis. 



Long. 10 lin., lat. 2f lin. 



This species, though not flat, is much more so than is usual 



in the genus, and seems to approach nearest to the G. scaritioides 



Westw. ; it differs however from that species in the sculpture 



of the head and other slight characters. The facial grooves 



take their rise almost behind the eyes, where they are 



connected together by a transverse shallow channel ; they extend 



forwards and inwards for some distance, and then curve outwards 



towards the anterior angles of the head ; there is a setigerous 



