138 NOTES ON AUSTRALIAN COLEOPTERA, 



with reddish hair. Posterior basal tarsi as long as the rest com- 

 bined (excluding the claws), anterior tarsi without marked sexual 

 characters. Dimensions — 17 x 9 uom. 



9. Longer and more parallel, anterior tarsi slightly narrower. 

 Dimensions 18 x 9*2 mm. 



Hah. — Birchip, Victoria, and Wimmera District; (from Mr. J. 

 C. Goudie and Mr. C. French). 



Easily distinguished from A. jninctipennis and A. costipennis 

 by its wider border to pronotum, and different elytral sculpture. 

 The female specimen is much more nitid than the male, but this 

 appears to be due to immersion in spirit, and is evidently a more 

 worn specimen than the male from Birchip. The female-type 

 has been returned to Mr. French. 



^THALIDES DECEMCOSTATA, n.sp. (Text-jBg. 6). 



May be best described by comparison with the former two 

 species. Colour as in A. costipennis, opaque black. 



Head in structure like A. marginicollis, but finely punctulate as 

 in A. costipennis. Third antennal joint equal to fourth and fifth 

 combined. 



Frothorax : convexity as in A. costipennis, with anterior 

 angles very acute and more prominent than in A. marginicollis, 

 with sides and front angles even more thickly mar- 

 gined than in that species. This margin emphasised 

 by a distinct gutter within the margin. Sides 

 widely rounded as in A. costipennis, but more 

 sinuously incurved towards the posterior angles, 

 which are deflected and acute. Elytra each with 

 five distinct, rounded costse. The first divided by 

 the suture, bifurcates near the scutellum, forming 

 the triangular depression behind it, the branches 

 scarcely reaching the base; the second and third, 

 at about equal intervals from each other and from the 

 the suture, join near the apical declivity, and are then 

 merged into the indefinite rugosity of the intervals; the fourth, 

 joined to the fifth near the shoulder, is continuous almost to the 



