BY ARTHUR M. LEA, F.E.S. 335 



Female differs in having the head much smaller, its 

 sides not projecting behind eyes, punctures much denser 

 and more evenly distributed; mandibles very acute at tip, 

 and each with a single acute submedian tooth; prothorax 

 no wider than elytra, sides more rounded and with some- 

 what denser and more uniform punctures, and elytra with 

 rather smaller punctures. 



Hab. — Tasmania : George's Bay, Forester River, 

 Denison Gorge, Lottah (Aug. Simson), Sheffield (H. J. 

 Carter from H. H. D. Griffith), Frankford, Wilmot, 

 Ulverstone {A. AI. Lea). 



One of the specimens (Fig. 34) before me bears the 

 Rev. T. Blackburn's label, *' Lissotus menalcas Westw.," 

 and on this authority I previously distributed under that 

 name many specimens of the species; but it is not even 

 close to menalcas, being subopaque. the average size 

 smaller, mandibles different both from above and from 

 the sides, head not largely scooped out in front, prothorax 

 much less convex, with sides very different, etc. 



A subopaque rough species, of which specimens are 

 usually above the average size of the genus. Some of 

 the smaller males have the head not much larger than 

 those of the females, with the mandibles considerably re- 

 duced in size. When the mandibles are clenched the 

 strong basal projections, which vary considerably, almost 

 meet considerably in advance of the labrum. The cusps 

 towards the apex are nearly always two or three in 

 number, but are sometimes very feebly defined. The 

 smooth spaces on each side of the middle of the prothorax 

 are more distinct on some specimens than on others, but 

 are never as distinct as in the two following species. The 

 front tibiae have two very strong apical teeth, and usually 

 three or four other fairly strong ones, and there are 

 generally a few smaller ones, some of wdiich are often 

 mserted between the fairly strong ones. The elytra are 

 usually glabrous except at the sides, but on an occasional 

 specimen a few short hairs are scattered about its surface, 

 and more or less linear in arrangement. 



In this and the following species I have not described 

 the punctures of the under surface, as they are invariably 

 coarse or fine according as to whether they are coarse or 

 fine on the upper surface. The large punctures on this 



