230 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



single J. The two species of which I know both sexes are A. 

 carenoides, Putz., and A. viridis, MacL, which are very closely 

 allied, so that it would be unsafe to base a definition of the genus 

 merely on their points of resemblance. As far as possible for nie 

 to determine at present, the following are the chief characters of 

 Adotela. 



Size large (as compared to Promecoderus), form robust and 

 convex. Mentum without any median tooth. Antennae filiform, 

 depressed, last joint sometimes narrow and tapering, sometimes 

 short and obtuse. Palpi : in ^ maxillary withlast joint securiform, 

 labial with last joint very securiform ; in 9 ^^st joint of both 

 palpi thick, cylindrical, truncate. Labrum usually emarginate 

 in front, sometimes very lightly so, or even truncate. Elytra 

 with an impressed puncture on each side at the base. Legs : 

 thighs variable, anterior tibiae dilatate at the end, the apex 

 acute or dentiform externally, the spinous portion of the lower 

 surface extending above the upper internal spine almost to 

 the base of the joint. The ventral segments without lateral foveae. 

 Middle tarsi without any spongiose tissue on the lower side in ^. 

 (This only refers to the two species A. carenoides and A. viridis, 

 of which I know the ^.) 



The following is all that I can attempt in the way of tabulating 

 the species from my present knowledge of them. The species in 

 italics I have never seen. 



a Exterior edge of anterior tibige smooth, 

 b Labrum rounded, 

 bb Labrum emarginate. 



A. liowitti, Casteln. A. carbonaria, Casteln. 



c Brightly coloured. 



A. carenoides, Putz. A. violacea, Casteln. 

 A. viridis, Macl. A. esmeralda, Casteln. 



A. bicolor, Casteln. 

 d' Black. 



e Anterior angles of prothorax not 

 advanced. 



A. atronitens, n.sp. A. australis, n.sp. 



