///(' I'rm'brioiiiihe of rlnpnn. 30") 



Oblonjj-nvate, convex iibove, plceous, sliiiiing; the licinl 

 semicircular in front, reililisli brown before the eyes, rather 

 densely punctulate, the female with a median fovea between 

 the eyes, the male with two slender reddisii horn.s, straight, 

 and reaching out beyond the head ; the thorax punctured 

 like the head, anterior angles rather broadly red ; the scu- 

 telluni very obscurely ])unctulate ; the elytra — epiplcur;u 

 reddish, sometimes also the humeral angle is red, strongly 

 punctate-striate, interstices also very distinctly punctulate ; 

 the antenna^, mouth-organs, and legs clear reddish brown. 



In well-developed males the frontal horns measure from 

 ^ mill, to I mill., but in a few specimens the forehead is 

 scarcely more than tuberculate. This species in size and 

 general sculpture corresponds with P. Marseidi. 



Ilah. Kiga, !Nikko, Oyayama, and Konose. Rather 

 common. 



Platydema lynceum, sp. n. 



Olilongo-ovalc, purpureo-nii^runi ; oculos supra panim approxi- 

 niatis ; capito thoraccque puuctulatis ; elj'tris valde puuctato- 

 striatis. 



L. 7 mill. 



Oblong oval, nearly black, with a faint purple tint ; the 

 head not cornute in either sex, irregularly and sparingly 

 punctulate ; eyes large and approaching each other above on 

 the inner anterior edge, especially in the male ; the thorax 

 transverse, narrowest in front, widest behind, finely and 

 sparingly punctulate ; the elytra rather long, strongly punc- 

 tate-striate, interstices microscoi)ically and sparsely punctu- 

 late ; the antenna3 and legs dull brown. The sexes can be 

 distinguished by their tarsi. 



Ilab. Nantaizan, Yokohama, and Junsai. Nine examples. 



Platydema fumosum, sp. n. 



Ovale, atrum, opacum ; antennis articulis primo et secuudo tarsis- 



quc rufis. 

 L. G] mill. 



Oval, densely black, opaque ; the head finely and sparingly 

 punctured, semicircular anteriorly ; the thorax arched at tiie 

 sides, bisinuous behind, punctured like the head ; the scu- 

 tellum triangular; the elytra, striae fine and punctulate, 

 interstices flat ; the antennse, two basal joints red, the others 

 black ; the legs dusky brown, tarsi reddish, basal joint of 

 the anterior tarsus of the male slightly enlarged. Head not 

 cornute in either sex. 



26* 



