56 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



interstices flat, no scutellar stride ; lateral border narrow, reach- 

 ing from peduncle to apex ; a few punctures along the margin, 

 sparingly placed on anterior half and becoming closer towards 

 apex. Prosternum with anterior margin not bordered. Ventral 

 segments smooth, without punctures, except a single one on each 

 side of the anus. 



Hab. — Victoria (taken by Rev. Thos. Blackburn in the moun- 

 tains above Harrietville, Upper Ovens River). 



This species may be separated at a glance from all the other 

 Australian Broscini by its short, broad prothorax, which is 

 broadly rounded, but hardly at all narrowed beliind. 



Genus Lychnus, Putzeys. 



This genus, founded by M. Putzeys (Stett. Ent. Zeit. 1868, p. 

 324) for the reception of a Tasmanian species which he named 

 Lychnus ater, is closely allied to Percosoma ; so closely, indeed, as 

 to suggest that it might be regarded with advantage as a section 

 of that genus. However, I have not sufiicient material at my 

 command to justify me in uniting it with Percosoma, and in 

 deference to pi'evious vvorkers who have considered Lychnus a 

 good genus, I still maintain it distinct. The species as yet 

 recorded belong to Tasmania, but their affinity is rather to the 

 Victorian species of Percosoma than to those from Tasmania. 



Its distinguishing characters are : — Antenn;e moniliforra; head 

 with strong frontal impressions, and a strong transverse impression 

 across the vertex at the back of the eyes. In the $ the anterior 

 thighs are dilatate in the middle, with the lower side forming a 

 strong obtuse projection. 



In 1878 Mr. Bates described two species, L. strangulatus 

 and L. striatulus, as new. He expresses himself as being 

 doubtful if L. ater, Putz., could have had the transverse 

 impression across the head that is so conspicuous a feature in his 

 two species, because M. Putzeys does not allude to it either in 

 Lis diagnosis of the genus or in his description of L. ater. This 



