268 Mr. Frederick Bates on 



This genus belongs to Lacordaire's second division or 

 '^groupe^' of tlie sub-family, which has for types the 

 Australian genera Thorctcophorus and Adelium. As the 

 group at present stands, Dcedrosis would appear to ap- 

 proach most nearly to Thoracophonis, although it has 

 many points which ally it to the European genus Lcena; 

 indeed, were the humeral angles wanting, the prothorax 

 more rounded at the sides, with its margins simple, it 

 would have quite a similar fades to the last-named 

 genus. The intercoxal process is, relatively, much nar- 

 rower than in any other member of the group. The 

 comparative length of the first and last joints of the 

 posterior tarsi does not appear to be a character possess- 

 ing any generic value. In Thoraeophorus the first joint 

 is longer, equal to, or shorter than the last, according to 

 the species, and even, I believe, according to the sex : 

 and in the species of Lcena observed by me, the same 

 variability obtains. 



1. Dcedrosis crenaio- striata, n. sp. 



Length 5 lines. Sub cylindrical ; of a deep glossy 

 black, Avith the elytra bronzed-black. Labrum punctured ; 

 head and prothorax very coarsely and deeply punctured, 

 the interstitial spaces irregularly convex and confluent ; 

 the former with a transverse ridge on the crown, and 

 another in front of the eyes, the spaces between these 

 and the epistome irregularly flattened or depressed. 

 Prothorax very glossy, convex in the middle at the 

 antei'ior margin, a little longer than broad, slightly con- 

 tracted from behind the middle to the base, hind angles 

 small, but distinct; scutum of the mesothorax strongly 

 punctured. Scutellum glabrous. Elytra elongate, deeply 

 crenate-striate, the interstices (except at the suture) 

 convex, transversely rugulose, with a few small scattered 

 punctures. Flanks of the prothorax, episterna, and base 

 of the epipleural fold very coarsely and deeply punctured ; 

 the abdomen much less strongly and more sparingly so ; 

 a few long setose haii-s placed irregularly on the head, 

 prothorax, elytra, sterna, thighs, and on the last joint of 

 the abdomen. Hind tibiae subsinuous; intercoxal process 

 rather narrow, gradually contracted to the apex, which is 

 rounded ; first abdominal joint with a depression on each 

 side at the base of the intercoxal process, which gives to 



