Mr. G. Lewis on ^votjlidad from Japan. 61 



joints short and stout, third as long as fourth and fifth 

 together and more slender, fourth to eighth moniliform, 

 seventh and eighth enlarging, ninth to eleventh transverse, 

 compressed, and together forming an oval club ; last joint of 

 the maxillary palpus triangularly dilated and rather robust ; 

 head robust ; eyes very moderately prominent, rather coarsely 

 granulate ; thorax as broad again as the length, with narrow 

 reflexed margins; legs in male rather robust, with tarsi 

 dilated, first and second joints transversely triangulate ; 

 female, legs and tarsi slender. Prosternum marginate before 

 and behind, without true stria3, and distinctly constricted 

 between the coxae ; mesosternum wide and moderately 

 transverse. 



Neotriplax atrata. 



Oblongo-ovata, convexiuscula, nigra, nitida, parce punctulata ; 

 elytris punetato-striatis, interstitiis punctulatis : antennis pedi- 

 busque nigris. L. 5|-7| mill. 



This species is congeneric with and very similar to Cyrtotri- 

 plax Lewisiij Crotch ; but it is larger and broader and wholly 

 black. Both species have a semicircular line between the 

 antennae, which divides the epistoma from the forehead. The 

 general facies, distinct foliation of the club of the antennse, 

 the dilated tarsi, and the absence of true prosternal lines are 

 sufficient to remove it from Cyrtotriplax, of which genus 

 hipustulata^ F., is the type. 



This insect was found not uncommonly in localities where 

 the beech and oak grow in elevated forests ; and I obtained it 

 in all the islands. It varies much in size. 



Neotriplax Lewisii. 



C'yrtotriplax Leicisii, Crotch, Ent. Mon. Mag. ix. p. 189 (1873). 



I once found this in great profusion at Nagasaki in fungoid 

 growth on rails, as recorded by Crotch. In 1880 I found it 

 not uncommonly in the environs of Yokohama, and in the 

 autumn, about October 29th, I saw a large assemblage of it 

 near Nikko. 



Neotriplax hiplagiata. 



Ovata, nigra, nitida, macula humerali sanguinea ; elytris punetato- 

 striatis, interstitiis puncticulatis. L. 3| mill. 



Densely black, except the antennae, palpi, and humeral 

 spot, which occupies the interstices of the fifth, sixth, and 

 seventh stride, but does not touch the edge j the antennse are 

 piceous and the palpi flavous. The prosternum is rather 



