1919.] 115 



viz. iV. {Corticaria) politus Macl., N. scrraticollis Lea, JV. ohscuri- 

 2)eiinis Lea and A^. trifoveicolUs Lea, must also be referred to Lissodema. 

 Specimens from Tasmania that I identify from the description as N. ob- 

 scuripennis Lea, appear to be inseparable from the type of L. frigidum 

 Blackb. 



4. Lissodema Cm-t. 



T^'pe, L. cursor Gyll. 



Stenolissodenm Desbr. (type, L. litiiratum Costa) was separated 

 as a subgenus on the characters given above, but it appears to me to be 

 untenable as a distinct gi'oup; many of the Japanese species described 

 by Keitter, Marseul, and Lewis Avould fall into Stenolissodema. A 

 rather distinct group is composed of L. letvisi and L. andrewesi 

 (described below), together with L. polltum Macl., characterised by 

 the strongly marked club of the antennae and by the smooth, scarcely 

 visibly punctate elytm, with scattered erect hairs. This group foi'ms a 

 connecting link with Platylissodema, but it does not seem advisable to 

 separate them from Lissodema. 



Lissodema ceylonicum, n. sp. 



Eloiif^ate, nitid, sparsely setose, piceous, with the basal half of the antennae 

 and the tai'si paler. Head rather feebly convex ; rostrum short, the sides 

 straight, strongly converging so that the front edge of the cljpeus is little 

 more than half as wide as the distance between the eyes ; supi'a-antennal 

 cariiiae raised ; clypeus swollen, defined posteriorly by an arcuate sharply- 

 marked impression ; surface of head with large, not very closely placed punc- 

 tures, some (? all) of which bear a single erect hair. Thorax nearly as long aa 

 broad, widest a little in front of the middle, evenly convex from side to side; 

 each lateral margin with 5 setigerous tubercles ; disc with large coarse punc- 

 tures, which towai'ds the middle line are somewhat smaller and elongate ; a 

 little within each basal angle is a deep but not very large fovea. Elytra 

 elongate, little wider at the slioulders than the thorax, slightly broader behind 

 the middle ; lateral carina visible throughout when viewed from above ; punc- 

 tures in regular rows, not very closely' placed, moderately coarse in basal half, 

 but not nearly so large as those of the thorax, the rows substriate with convex 

 intervals, behind the middle becoming almost obsolete ; the surface is set with 

 a few scattered erect hairs. 



Length 1^ mm. 



Hah. Ceylon, Horton Plains, Diko3'a, Balangoda, BogawantalaWa 

 ((?. Lewis). 



A single specimen from each locality, the one from Bogawantalawa 

 having a veiy much finer puneturation of the head and thorax : as the 

 punctures are not more numerous, they appear more widely spaced. 

 Differs from L. q^uadrip ustulat urn Marsh, in colour, in its much coarser 



