174 Mr. Gr. Lewis on the Pjrochroidge of Japan. 



The American species of Dendroides have the elytra with 

 distinct punctures separated from each other by a wide inter- 

 stice. The Japanese species have the elytra closely sculp- 

 tured as in the genus Pyrochroa ; this sculpture is some- 

 times called coriaceous, but I think Dr. Heyden's " trans- 

 verse densissime rugosis," applied to Pyrochroa japonica, is 

 the better description of it. 



Dendroides niponensis. 



Elongatus, piceus ; fronte excavata ; elytris rufo-brunneis, antice 

 subparallelis, postice parum dilatatis. L. 17 mill. 



Elongate and relatively little dilated behind ; elytra piceous, 

 with a reddish-brown pile, which together give a tint 

 which inclines to pink. The general colour simulates to 

 that of P. peculiaris, in which also the elytra are different in 

 colour from the pubescence. Head excavated between the 

 antennas and in the region of the anterior portions of the eyes ; 

 between the hinder portions of the eyes the surface is gla- 

 brous and shining ; neck punctured ; thorax rather round 

 behind, but slightly constricted behind the neck, with a cine- 

 reous pile ; surface uneven. Scutellum blackish, broadest at 

 base, gradually rounding off towards the apex. Legs black ; 

 claws yellow. The antennse are strongly pectinate in both 

 sexes, the pectination being longer and narrower in the male, 

 shorter and more robust in the female. 



The chief sexual characters are in the eyes. The eyes in 

 the female are small and the interocular space double the 

 width of that in the male, and the frontal excavation is 

 shallow. 



I obtained it at Kashiwagi, Nikko, Chiuzenji, and Akita. 



Dendroides ocularis. 



Elongatus, piceus ; fronte baud excavata, punctata, ooulis in medio 

 approximatis. L. 13 mill. 



Elongate, with the outline of the last species ; epistoma 

 slightly convex and a little rugosely punctate ; eyes very 

 prominent and above almost touching in the male; neck 

 rugosely punctured ; thorax slightly constricted before the 

 base, lateral depressions deeper than those of the middle ; 

 scutellum black ; elytra reddish brown. The female has a 

 smaller head than in the preceding species, and the interocular 

 space is about as wide as in the male of D, niponensis^ and it is 

 less shining and more punctured than in the male of its own 

 species. 



