the Elaterida} of Japan. 41 



Elatei' bicari/iatus, Cand. 



Slater bicarinatua, Cand. Mt5m. Lioge, 1873, p. 9, 



This species is met with in old trees, and has never been 

 louiul away from tlicm ; it is of nocturnal liabit and shiggish. 

 JJab. Jsagasaki, Maiyasan (Kobe), and Sapporo. 



Elate}' rugipenniSj sp. n. 



ricciis, nitidus, robustus, brunneo-pubcsccns ; thorace punctulato, a 

 basi bicarinato ; elytris interstitiis conspicue rugosis ; antennis 

 pedibusque rufo-bruuneis. 



L. 114-12 miU. 



Piceous, shining, with brownish pubescence ; tlie head some- 

 what densely punctured ; the thorax narrowest anteriorly, little 

 arched at the sides, punctures laterally very similar to those 

 of the head, punctures on disk move scattered and much finer, 

 median channel feeble, evanescent in front; the scutellum 

 visibly punctate, not acuminate behind, stria? all well- 

 impressed, punctate, interstices markedly transversely rugose, 

 sutural interstices widest ; the antenna and legs dull reddish 

 brown. In one example the hind angles of the thorax are 

 reddish. 



The peculiar colour of this species resembles that of E. hi- 

 carinatiift, Cand., and it agrees with the latter in having an 

 intermediate carina on the thoracic angle and in its slender 

 lax articulations of the antennte ; but it is much larger and 

 very robust. E. hicarinatus is a slender species. 



Hah. Kioto and Oyama. Two examples. 



Elater parvulus, sp. n. 



Ater, nitidus, griseo-pubescens ; capite thoraceque subtiliter punctu- 



latis ; antennis pedibusque nigris, tarsis rufis. 

 L. 5f mill. 



Black, shining, with greyish pubescence ; the head finely 

 and sparingly punctulate ; the thorax punctured like the 

 head, widest behind the middle; the scutellum obscurely 

 punctulate, acuminate behind; the elytra evenly punctate- 

 striate, interstices scarcely flat and punctulate ; the antennae 

 moderately serrate, wholly black, second joint a little shorter 

 than the third, third joint obconical ; the legs and basal 

 joint of the tarsus black, claws and other joints reddish. 



In form somewhat like Elater erytlirogonuSj Miill. 



Hah. Yuyama. One example. 



