On (he Elateridae of Japan. 255 



which are entirely bhick on the uppcrside should be referred 

 to males wiiich have yet to be discovered. A. herculina 

 is probably intermediate between ^1. leo and A, tyrannus^ 

 Feld. 



XXVIII. — On the Elaterida3 of Japan. 

 By G. Lewis, F.L.S. 



[Continued from p. 201.] 



Athous jactatuSy sp. n. 



cf. Niger, griseo-pubescena ; thorace parallelo, nigro ; elytris ferru- 

 gineo-brunneis, sutura fusca ; antennis nigris ; pedibus fusco- 

 brunneis. 



L. 7-i>i mill. 



Black, shining, with grey pubescence ; the head rather 

 coarsely punctate, depressed between the aiitennn3 ; the thorax 

 somewhat parallel at the sides, feebly canaliculate in the 

 middle, punctuation much smaller than that of the head, 

 hind angles concolorous, short and blunt; the scutellum 

 fuscous ; the elytra rusty brown, punctate-striate, interstices 

 little convex and punctulate ; the antennae rather slender, 

 black ; the legs dusky brown, knees, ends of tarsi, and claws 

 paler. There is one example with the basal joint of the 

 antennai red, elytra dark brown, and legs pale. 



There is a close resemblance in this species to A. difficiliSy 

 Duf., but the thoracic hind angles are not red and the elytral 

 sutures are dark. The general form also is more parallel. I 

 took a large number of specimens, but no female ; the female 

 of A. difficilis is also unknown, so that the female of each 

 species is probably very sluggish. 



Uab. Nara. In abundance at the end of June. 



Athous mornatuSj sp. n. 



Obscure brunneus, subnitidus, griseo-pubescens ; thorace post angulos 



rufo ; elytris pedibusquc paUidc brunncis. 

 L. 2 10|, J 7i mill. 



(J. Dull brown, with griseous pubescence; the head 

 rather closely punctured, little rugose ; the thorax pitchy 

 brown, with a broad reddish area behind the anterior angle- 

 rather more finely punctured than the head, not very convex, 



