tlie Elateridse of Japan. 43 



Megojyenthea opacusj Cand. 



This species was described from a single specimen taken at 

 Kobe ; but in August 1880 I obtained five more examples 

 from elder-flowers near the lake of Junsai, in S. Yezo. The 

 tliorax is red in both sexes, the second and third joints of the 

 antenna are short, equal, and robust, the apices of the elytra 

 arc emarginate outside the first stria. 



Ilab. Koh6 and Junsai. 



Megapenthes hicarinatus^ sp. n. 



Elongatus, infuscatus, suhnitidus, fulvo-pubescens ; thorace dense 

 punctate, angulis posticis bicarinatis; elytris a basi obscure 

 brunneis ; antcnnis pedibusque concoloribus. 



L. 11 miU. 



Dusky brown, rather shining, pubescence fulvous ; the 

 head coarsely and closely punctured, punctures subocellate, 

 frontal carina arched ; the tliorax closely but less strongly 

 punctate, elongate, somewhat parallel at sides, widest poste- 

 riorly, angles rather long and acute, slightly turning outwards, 

 conspicuously bicarinate ; the scutellum elongate, punctured 

 like the thorax, narrowed from the middle and pointed, but 

 not acutely, behind ; the elytra punctate-striate, interstices 

 markedly scabrous, reddish brown at base and the apices at the 

 first and second interstices are truncate ; the antennae very 

 long and reddish brown, like the legs. 



M. luteijjes, Hope, from China, appears to be similar to 

 this species, which I have been able to notice through the 

 courtesy of Mr. Godman, the type being in the Jauson col- 

 lection. 



Hab. Japan [Moore). Probably from Nagasaki, as I 

 believe I was with Mr. Moore at the time of capture. 



In the species following (excepting M. versipellis) the apices 

 of the elytra are of ordinary form. 



Megapenthes Mgonius^ sp. n. 



Parallelns, ater, opacus, griseo-pubeseens ; thorace confertissime 

 at parum grosse punctato, ante scutellum impresso ; elytris 

 puuctato-striatis, interstitiis rugosis ; tarsis infuscatis. 



L. 10-10| miU. 



Parallel, densely black, opaque, with griseous pubescence ; 

 the head closely punctate, punctures somewhat coarse, frontal 

 carina well-marked anteriorly, straight, strongest over the 



