338 Mr. G. Lewis on the 



medio nitido, parce punctulato lateribus rugulosis. Long, 

 cum mandib. 18 lin. 



Six males, eight females. 



1 have figured the male of this, and I should not have 

 ventured to describe it as other than a variety of striati- 

 pennis or rectus were it not so evidently a small develop- 

 ment of a species. The punctuation of the mentuni 

 agrees fairly with rectus, but it is more vermiform and 

 confluent. The female is so large that a fully-developed 

 male must be very much larger than the form I know. 

 It is a scarce species, and I obtained only a few speci- 

 mens, and these all occurred at sap where the large 

 Hepiali were feeding. Chiuzenji, Junsai, and Nanaye 

 are the localities. 



Macrodorcus striatipennis, Motsch. 



I found this species in immense profusion in Yezo, 

 and in all the elevated forests of the main island. It is 

 not common in Kiushiu, but I have specimens from 

 Oyayama and Tanegashima. 



Dorcus Hopei, Saunders. 



This species is apparently rare ; large males measure 

 over 31 lines. I obtained it at Kobe, Kioto, and Sendai. 

 Seven males, three females. 



D. binodidosus, C. Waterh., is an undeveloped male 

 of 17^ lines. 



JEgus subnitidus, C. Waterh. 



This has its affinities in tropical species ; it is common 

 in Kiushiu in fir " stools," but it only occurs as far north 

 as Kioto, and is rare there. It has its large and small 

 forms. Thirteen males, five females. 



Platycerus delicatidus, n. s. (PI. XIV., fig. 3). 



$ . Nigro-caeruleus, subnitidus, capite thoraceque sat 

 fortiter punctatis, mandibulis capitis longitudine. An- 

 tennis nigris. Elytris tenuiter striatis et rugoso-punc- 

 tatissimis, pedibus testaceis, his geniculis nigris. Long. 

 6£ lin. 



2 . ZEneus, seu nigro-c&ruleus, tibiis plerumque 

 solum testaceis. Long. 5j lin. 



Twenty-five males, twenty females. 



