394 Mr. G. Lewis on 



There is very little to distinguish this species from P. nigro- 

 cnneum, Motscli., except its size and that the wider joints of 

 the antennae are more transverse. 



Hah. Nagasaki, Kumamoto, Miyanoshita, Kadzusa, and 

 Yokohama. 



Platydema Mgonium^ sp. n. 



Breviter ovale, convexum, seneum, metallicum ; elytris distincte 



striato-punctatis ; antcnnis pedibusque obscure brunneis. 

 L. 5i-6i mill. 



Shortly oval, convex above, brassy, very shining; the 

 head rather densely excavated between the eyes in both 

 sexes, the male with two rather long and acute horns well 

 separated from each and scarcely thickened at their bases ; 

 the thorax evenly, not very densely, punctulate, brassy, with 

 a purple tint ; the elytra, interstices flat, finely punctulate, 

 striaj consisting entirely of rows of punctures ; the antennae 

 and legs obscure brown. 



This is the most metallic species in this series, and the 

 only one in which the elytral strias consist throughout of a 

 series of punctures only, each puncture being clearly sepa- 

 rated from another. 



Hah. Hitoyoshi, Oguma, and Rakuwayama. Seven spe- 

 cimens. 



Platydema sylvestre^ sp. n. 



Ovatum, convexum, seneum, submetallicum ; capita in medio im- 



presso ; elytris fortiter punctato-striatis. 

 L. 4|-5 mill. 



Ovate, convex above, brassy or brassy green, somewliat 

 metallic ; the head semicircular in front, clearly and rather 

 thickly punctulate, with a median impression between the 

 eyes, impression deepest in the male ; the thorax narrowest 

 anteriorly, widening to base, lateral edge raised, punctu- 

 late, punctures finer and less close than those of the head ; 

 the scutellum smooth ; the elytra strongly punctate-striate, 

 interstices little convex, with scattered and extremely line 

 punctures; the antennae and legs dull reddish brown. The 

 male is apparently without armature on the head. 



Hah. llakone and Kiga. Six specimens. 



Platydema recticorne, sp. n. 



Oblongo-ovatum, supra convexum, piocum, nitidum : antcnnis, pedi- 

 bus et cpipleuris rufis ; thorace punctulate; elytris fortiter 

 punctato-striatis. intcrstitiis ilistincte puuctulatis. 



L. 4j-4^ mill. 



