BY W. MACLEAY, JUN., ESQ. 183 



The facial grooves converge considerably towards the front. The 

 thorax is nearly as long as broad, and is marked with fine 

 transverse striolae. The elytra have two punctures at some 

 distance from their base, and other two at about the same 

 distance from their apex. The fore tibia3 are bidentate externally. 



The four insects last described belong to the group of which 

 C. BonelUi is the type. Unlike the two groups previously 

 mentioned, there is not much general resemblance among the 

 nine species which compose the present one. C. affine and G. 

 simile are somewhat alike, and G. undulLttmn and G. obsctmim 

 are also alike, but the other species are distinct in every way. 



I may mention that C. viridipenne, described by Westwood, 

 as from New England, corresponds pretty accurately with a 

 species I have received from Rockhampton, and which, until I 

 know better, I shall regard as that species. 



14. — CaRBNUM MURRUMBIDGENSB. 



Nigrum nitidum, thorace elytrisque late violaceo-marginatis, 

 his indistincte striatis versus apicem bipunctatis, tibiis 

 anticis extus bidentatis. 

 Long. 7| lin., lat. 2.f lin. 

 Hab. Murrumbidgee. 

 This species is not unlike the type of the group, G. marginatum, 

 it differs from it in being much smaller and in having a broad 

 violet coloured margin to the thorax and elytra. The head also 

 differs in having the facial grooves connected together behind by 

 a shallow semicircular depression. The elytra are indistinctly 

 striated as in C. margiiiatmn, and the fore tibia3 which are biden- 

 tate externally have two minute teeth above the others, as is also 

 the case in the typical species. 



A single specimen in the collection of the late W. S. 

 MacLeay, Esq. 



15. — Carendm laterals. 



Nigrum nitidum, thorace violaceo-marginato antice truncato 

 postice subtruncato angulis posticis rotundatis, elytris 

 subnitidis viridi-marginatis postice bipunctatis, tibiis anticis 

 extus bidenlatis. 



