NEW SPECIES OF COLEOPTEROUS INSECTS. 365 



the antenn(B are 10-jointed, the joints from the 2nd to the 7th 

 inclusive, are very short and of nearly equal size, the 8th, 9th 

 and 10th are dilated laterally, and form a small but obvious 

 mass or club : the prothorax is very convex ; it is wider than 

 long ; its greatest diameter is about the middle, and its least 

 diameter is anteriorly ; its lateral margins are crenate : the 

 elytra are rather narrower than XhQ prothorax : the joints of 

 the tarsi are rather elongate, and each is furnished with an 

 obvious pilosity. 



Sp. Caco. squamosus. Fusco-testaeeus, splendore metallico modeste de- 

 coratus: rugose ac irregulariter panctus; squamis argenteis sparsis 

 ovalibus omnino teotus. (Corp. long, cum mandibulis '9 unc. lat. '35 

 unc). 



The colour is a testaceous brown, displaying, as the light 

 falls on it at various angles, obvious although not brilliant 

 metallic hues : every part of the insect is somewhat irregu- 

 larly punctured, and is covered with small silvery oval scales, 

 one of which appears to be attached in each puncture. 



Inhabits ? I received this insect through the hands 



of Mr. Bowerbank, direct from Sydney, and the pin appeared 

 similar to those used for other insects in the same collection, 

 evidently from that locality, yet I cannot help expressing a 

 doubt of its country, which I should have supposed to be 

 Assam, or some neighbouring region of continental Asia. 



Natural Order.— CARABITES, Newman. 



Genus. — Silphomorpha, Westwood. 



Silphomorpha is a genus separated by Mr. Westwood from 

 the Pseudomorpha of Kirby, under which name I had unhe- 

 sitatingly described the present species. Mr. Westwood has 

 remarked of the genera Pseudomorpha, Adelotopus, Sphallo- 

 morpha and Silphomorpha, that '* they possess so many cha- 

 racters in common, that they would doubtless be considered 

 as belonging to the same genus, were they not carefully ex- 

 amined. All of them possess the same formation of legs, 

 mandibles, inaxillae, minute maxillary palpi, truncate labial 

 palpi, &c." — * Transactions of the Lin. Soc. Lond.' vol. xviii. 

 page 416. 



Sp. Silph. maculata. Picea, prothoracis elytrorumque marginibus la- 

 teralibus late albidis, utriusquc elytri maculge 2 albidee. (Corp, long. 

 •3 unc. lat. -15 unc.) 



