68 Mr. G. Lewis on Erotylid8e/?-o»z Japan. 



with interstices finely and sparsely punctulate ; the antennae 

 have the basal joints red, five to eight darker and the club 

 blackish ; legs red, with the tibia3 rather robust, the middle 

 pair angulated at the base. Beneath wholly red ; prosternum 

 with six or seven punctures^ with the stria slightly curved 

 anteriorly. 



I took only five examples at Nikko and Kashiwagi. 



Cyrtotriplax ruficornis. 

 Oblongo-ovata, capite elytrisque nigris ; antennis pedibusque rufis. 



L. 4| mill. 



Head and thorax evenly and sparsely punctured, punctures at 

 the base of the head not large, as they are in G. similis ; head, 

 elytra, meso- and metasterna black, the rest red ; the prosternal 

 lines are very long and nearly touch the anterior edge ; the pro- 

 sternal process is somewhat raised and truncate in front ; the 

 tibise are not robust or angulate, as in the last species. 



One example taken at Nikko and another at Kashiwagi. 



Cyrtotriplax connectens. 

 Oblongo-ovata, capite elytrisque nigris, pedibus flavis. L. 3| mill. ' 



Head and thorax sparsely and evenly punctate, head black, 

 antennas red with club infuscate ; thorax red, narrowly black 

 behind the neck and in front of the scutellum ; scutellum and 

 elytra black, latter punctate-striate, the interstices with well- 

 marked punctures, often in rows. Beneath, the thorax is red 

 with infuscate base ; abdomen broadly margined with obscure 

 yellow, the rest black ; prosternal lines anteriorly very fine and 

 disappearing gradually in front of the coxse ; the mesosternum 

 has a few large punctures ; metasternum with finer and more 

 numerous punctures ; legs and palpi yellow, former not ro- 

 bust. 



Ikenchaiya, June 22, 1881. 



The specific name is chosen because the species leads out of 

 Cyrtotriplax into Trii^lax. Triplax gracilenta is a very similar 

 species to this, and I am not sure, when a fair revision of the 

 family is made, the two genera will be declared distinct. 



Thus it appears from the material now at hand that Cyrto- 

 triplax has species which link it very closely with Triplax ; 

 in other words, it may be said that the convexity of the forms 

 in the first genus is not always pronounced. 



Triplax gracilenta. 



Triplax gracilenta, Solsky, Deutsche ent. Zeit. p. 23 (1879). 

 Triplax sihirica, Crotch, Revis. p. 90. 



Oblongo-ovata ; thorace flavo, antice et postice anguste infuscato ; 

 antennis pedibusque flavis. L. 3| mill. 



Head black, punctate ; thorax flavous, with a narrow band 



