1885.] PHYTOPHAGOUS COLEOPTERA OF JAPAN. 751 



Clerotilia, n. gen. 



Body elongate. Palpi filiform ; eyes entire. Antennae slender, 

 longer than the body, the first joint club-shaped, the second short, 

 the third and following double the length and nearly equal. Thorax 

 transversely subquadrate without depression. Elytra finely semi- 

 punetate-striate, impubescent. Tibiae unarmed ; metatarsus of the 

 hind legs nearly as long as the three following joints together ; claws 

 bifid ; anterior coxal cavities closed. Elytral epipleurse continued 

 to the apex. 



The bifid claws of this insect compel me to propose the present 

 geims for its reception, which will enter the twenty-sixth group of 

 Chapuis's arangement, the Piatyxanthince, on account of the unarmed 

 tibiae and closed anterior coxal cavities. Tiie frontal tubercles are 

 very strongly raised^ and the antennae have the apices of their joints 

 thickened. 



Clerotilia flavomarginata, u. sp. (Plate XLVI. fig. 12.) 



Pale fulvous ; antennae piceous ; head and thorax impunctate ; 

 elytra very finely punctured, metallic green or blue, the lateral 

 margin very narrowly flavous. 



Length 2 lines. 



Head not longer than broad, impunctate ; the frontal tubercles 

 trigonate, strongly raised, divided by a narrow groove and bounded 

 behind by anotlier deep depression. Antennae distinctly longer than 

 the body, piceous, shining, the first joint long, swollen towards the 

 apex, second joint half the length of the third. Thorax one half 

 broader than long, subquadrate, the sides narrowed at the base, the 

 angles slightly tuberculate ; surface rather convex, without depression, 

 impunctate, pale fulvous like the head. Scutellum of the same 

 colour. Elytra finely alutaceous or granulate when seen under a 

 strong lens, their surface closely and finely punctured, the punctuation 

 arranged in indistinct rows ; green or blue, the extreme lateral margin 

 fulvous ; epipleurse broad, extending to the apex ; legs entirely 

 fulvous ; claws bifid, the inner division shorter. 



Tsumago, Nara. 



APPENDIX. 



NODOSTOMA VARICOLOR, Sp. nOV. 



Ovate, piceous ; antennae and legs fulvous ; head, thorax, and the 

 lateral margin of the elytra metallic green, the disk of the latter 

 fulvous, punctate-striate. 



Length 1| line. 



Head finely and remotely punctured, the epistome not separated 

 from the face ; eyes large ; labruui and palpi fulvous. Antennae 

 half the length of the body, fulvous, second and third joints equal, 

 the former thickened, the latter thinner than the following joints. 

 Thorax transverse, nearly three times as broad as long, the sides 

 very strongly rounded, but scarcely angulate behind the midrlle, 

 strongly narrowed in front; surface metallic green, much more strongly 



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