Mr. G. Lewis on Erotylidse/rom Japan. 71 



is fairly punctured, with sides distinctly canaliculate. The 

 punctures are large on the prosternum and the surface rather 

 rugose ; the lateral strige do not pass anteriorly beyond the 

 coxee, where they are a little incurved at right angles. The 

 abdomen is microscopically strigose, with some scattered punc- 

 tures. 



Four specimens, from Hakodate, Hitoyoshi, and Kashiwagi, 

 localities showing a wide distribution for the species. 



Triplax discicolUs. 



Elongato-oblonga, nigra, nitida ; thoraee flavo, disco infuscato pedi- 

 busque flavis ; antennis basi rufis. L. 5 mill. 



Head and thorax sparsely but rather coarsely punctured, 

 the first black, the second yellow with disk largely and some- 

 what irregularly infuscate (in one specimen the dark disk is 

 longitudinal only) ; scutellum impunctate ; elytra finely 

 punctate- striate, interstices irregularly and somewhat indis- 

 tinctly puncticulate ; legs pale ; antennas, first three or 

 four joints reddish, the rest infuscate. The prosternum has 

 scattered and rather coarse punctures, the prosternal lines 

 terminating immediately before the coxse. 



In general coloration this species is similar to T. amoena, 

 Solsky, with the exception of the elytra and abdomen, which 

 are black. In T. amcena the elytra are subcyaneous and the 

 abdomen red, and the outline is somewhat broadly ovate. 



I obtained only five examples at Miyanoshita and Kashi- 

 wagi. 



Triplax japonica. 

 Triplax japmiica, Crotcli, Ent. Mon. Mag. ix. 1873, p. 189. 

 " Oblonga, Isete ferruginea, antennis (basi excepta), pectore elytrisque 

 nigris." 



Additional localities for this species are Junsai, Hakodate, 

 Sendai, Miyanoshita, Kiga, and Hitoyoshi. " It resembles 

 Tujijpes.^'' 



Triplax atricapilla. 



Oblonga, subparallela, Isete rufa ; capita, antennis, pedibus elytrisque 

 dimidio apicali nigris. L. 6j mill. 



This fine species is almost the same in colour and structure 

 as T. apicatttj Crotch, from Assam. The only differences I see 

 are that the head is wholly black and the prosternal lines more 

 parallel in T. atricapilla. 



I found one at Nara, June 30, 1881, and afterwards re- 

 ceived four specimens from Higo. All are exactly alike. 



