356 



XOTE'S O'X THE G-BXUS LISSOTE'S. 



species (also with other species of the genus) are often 

 filled with mud, so that, to the naked eye, specimens 

 often appear of a dingy brown. 



LISSOTES CONVEXUS, n. sp. (Fig. 38). 



Male, Black, shining; sides setose. 



Head wide; eyes nearer the base than usual, the sides 

 behind them not projecting and no wider than, if as wide 

 as, the space across the eyes themselves; sides in front of 

 eyes narrow and flattened, but not projecting. Rather 

 convex, apex in middle almost vertical and feebly con- 

 cave, with large, round, dense punctures at the sides, be- 

 coming much smaller and sparser elsewhere, and in 

 some parts entirely absent. Labrum moderately long 

 and pointed in middle. Mandibles comparatively slender, 

 each with a large obtuse projection at side of labrum, 

 upper surface from middle to apical fourth with an obtuse 

 ridge, ending in an obtuse projection, lower surface be- 

 tween this and apex usually with a strong cusp and a 

 very feeble one. Prothorax slightly wider than head, 

 sides finely serrated and gently rounded, towards base 

 slightly incurved, l)ut with the hind angles almost rec- 

 tangular, . flattened or very feebly depressed along 

 middle; with punctures varying from very minute to very 

 large, and irregularly distributed, a conspicuous smooth 

 space with very sparse and minute punctures along each 

 side of the middle. Elytra with feebly projecting 

 shoulders, with dense but not very coarse punctures, of 

 which two or more are frequently connected by fine 

 transverse or oblique scratches; interstices and striation 

 ill defined. Length, 13 — 16 (female, 11^ — 1254) mm. 



Female differs in having the head much smaller, with 

 denser punctures of more uniform size, eyes more con- 

 spicuous, mandi1)les of the usual female type; prothorax 

 smaller, sides more rounded and more strongly serrated, 

 with the shining spaces much less conspicuous, and elytra 

 with somewhat sparser punctures. 



Flab. — Tasmania: Burnie, Marrawah (A. M. Lea). 



There are five males before me and two females, and 

 I have described them as representing a distinct species. 

 But possibly they represent an extreme variety of the- 



