the Elateridap of Japan. 45 



but not much, widening out to the base, hind angles not acute, 

 interspace between the margin and carina reLitively somewhat 

 wide ; the scutellum not acuminate ; the elytra, stride fine, 

 interstices rather wide and rugose, the rugosities apparently 

 obliterating the punctures usual in the clytral striaj in Mega- 

 penthes ; the antennai black ; the legs piceous or obscure red, 

 thighs darker. 



Ilab. Subashiri and on the plain of Fujisan. Two 

 examples. 



Megapenthes bifoveolatus, sp. n. 



^neu8, subnitidus, fiJvo-pubescons ; thoraco bifovoolato ; antenais 



articulis l"-3'" pcdibusque rufo-brunuois. 

 L. 9|-10j mill. 



^neous, somewhat shining, with short tawny pubescence; 

 the head rather closely punctate; antenna3 inf uscate, with three 

 basal joints reddish brown, longer in male than in female ; the 

 thorax — disk punctured like the head, sides more closely and 

 slightly rugose ; before the middle in a line with each eye arc 

 two well-marked fovese, deeper and jarger in female than in 

 male, there is a median longitudinal channel also, which is more 

 distinct in female than in male ; the elytra, stride rather fine and 

 not conspicuously punctured, interstices Hat and rugose ; the 

 legs are a clear reddish brown and the abdominal segments 

 sometimes reddish. 



This species is remarkable for its colour and thoracic foveaj. 



Ilab. Oyayama, Ichiuchi, Oyama, Chiuzenji, Nikko, and 

 Miyanoshita. 



Megapenthes cariniceps^ sp. n. 



Niger, nitidus, nigro-pubcscens ; capite in medio lougitudinaliter 

 conspicue carinato ; thorace sparse punctulato ; antennis nigris, 

 pedibus infuscatis. 



Kather densely black, shining, with black pubescence ; the 

 head sparingly punctulate, with a very conspicuous carina in 

 the middle, which anteriorly passes beyond the frontal carina, 

 and posteriorly it is well-shortened before the neck j the 

 thorax punctured like the head, narrowest anteriorly, hind 

 angles not long but acute, carina well-marked ; the elytra 

 rather deeply and very regularly punctate-striate, interstices 

 obscurely punctulate and somewhat scabrous ; the antennse 

 black J the legs dusky. 



The facies of this species somewhat resembles that of 

 M. tibialis, Lac., but the longitudinal carina on the head at 

 once separates it from all in this series. 



Hab. Kiga. One example. 



