124 



The only genera of the Cossonides recorded by Wollaston as 

 having dentate femora are Captorhauiphiis, Homaloxenus, Nofiomi- 

 metes and Odontomesites, all of whicli are more or less aberrant. 

 But the species of the present genus are quite ordinary looking 

 members of the subfamily; and at first sight appear to belong to 

 Cossonus itself; to which genus in.fact one of them has been referred. 



(526). HOPLOCOSSONUS LETHARGICUS Oll. (Cossonus, Oll.). 



This species was referred to Cosso7ius by Olliff, but its front 

 femora are quite as strongly dentate as in the following species. 

 I have specimens from Lord Howe Island, and from Brisbane and 

 Mount Tambourine in Queensland. The island specimens are pro- 

 bably cotypes, but to be certain of the dentition (as all mention of 

 same was omitted by Mr. Olliff) I wrote to Mr. W.-J. Rainbow, 

 who after examining the types wrote as follows « Yes, Cossoiius 

 lethargicus Oll., has the front femora strongly dentate ». 



662. HOPLOCOSSONUS BICOLOR n. sp. 



Black, appendages and part of elvtra reddish brown. 



Head with small and rather sparse punctures; inter-ocular fovea 

 rather large Pvostrum wide, feebly increasing in width from base 

 to antennae, thence parallel-sided to apex; convex along middle, 

 with punctures as on head, but more irregularly distribute'L Pro- 

 thorax somewhat depressed, sides moderately rounded, base bisi- 

 nuate and about one lalf wider than apex; with dense and not very 

 small punctures, becoming sparser towards middle, where there is 

 a feeble impunctate line, but at base tlip punctures are crowded. 

 Elytra somewhat depressed, at base as wide as widest part of 

 prothorax; with regular rows of large punctures, becoming much 

 smaller posteriorly; interstices gentiv convex, each with a row of 

 very minute punctures. Under surface with small and rather sparse 

 punctures, becoming larger and denser towards sides. Meso- and 

 metasternum combined slightlv longer than two following segments 

 combined, these with a shallow and rather narrow depression 

 common to both. Length 5 1/3-7 mill. 



Hah. : Queensland : Mount Tambourine (H. Hagker) Port Denison; 

 N. S. Wales : Clarence River (Belgian Museum). 



The reddish-brown portion of the elvtra is basal and may occupy 

 slightly more or slightlv less than half, but the two colours are 

 not sharpiv delined, and the black is advanced along the suture to 

 the base. The under surface and apical half of the rostrum are also 

 sometimes of a reddish-brown. The partly red elytra will readily 

 distinguish from the preceding species. 



