136 NOTES ON AUSTRALIAN COLEOPTERA, 



and punctured like the head. The narrow explanate border 

 slightly rugose. Scutellum widely transverse. Elytra oblong- 

 ovate, broader than prothorax at base, shoulders widely 

 rounded, with epipleural fold forming a narrow upturned 

 border; sides subparallel till near apex, apical declivity steep. 

 Disc coarsely and irregularly punctured, most strongly on 

 the sides and middle, punctures becoming less distinct towards 

 apex; interstices convex and alutaceous ; each elytron with 

 three well marked costse about equidistant from each other and 

 from the sides; of these the first two approach one another 

 near the base (in one specimen, out of five under observation, 

 they actually meet), the third starting from the shoulder, 

 all three becoming obsolete oq apical declivity; the suture 

 itself forming a fourth double costa which bifurcates near 

 the scutellum, the branches leading off to join the first costa at 

 the base. Beneath black, shining; tibii^ and tarsi clothed with 

 fulvous hair. Dimensioyis — 18-20 x 9-lOmra. 



Hab. — Cootamundra, N.S.W.; taken by my son, E. M. Carter. 



Evidently an ally of jE. punctipennis Bates, of which I have 

 specimens which I have compared with Bates' type. From this 

 species the chief differences are (1) greater size, (2) wider margin 

 of prothorax, (3) narrower and less vertically placed head, (4) 

 much coarser reticulation, and well marked costse of the elytral 

 sculpture. 



The only sexual difference that is easily apparent is the slightly 

 enlarged basal anterior tarsus of the male. In the genus ^Etha- 

 lic/p.s the submental tooth is not so definite as in ffypocilibe; and, 

 if my diagnosis is correct, the submentum should be rather 

 described as lobed than toothed. The mandibles are very wide 

 at the base, concave, channelled in the middle, and margined at 

 the sides, rather abruptly narrowing to the apex. In Hypocilibe 

 the mandibles are generally much narrower at the base, and 

 scarcely, if at all, concave. Type in author's coll. 



^THALIDES MARGINICOLLIS, n.sp. (Text-fig. 5). 



Male oblong-oval, convex, black, slightly shining (more so than 

 in A. punctipennis Bates). 



