Coleoptera of Japan. \ol 



Sides of elytra ool densely striolated. 



Pygidium nol very finely striolated. fair/muni, Kr. 

 Pygidium very finely striolated. . . . thibetana, Kr. 

 Elongate; pronotum narrow, with the 



sides angulated cataphracta, Arr. 



( ilypeus distinctly bilobed. 

 < '1\ peal lobes rounded. 



Very smooth and shining; pronotum little 



punctured inquinata, nom. no v. 



Not smooth and shining; pronotum 

 strongly punctured. 

 Pronotum narrow, feebly excised, middle 



line elevated lemi, liar. 



Pronotum not narrow, deeply excised. 

 Pronotum strongly and evenly punc- 

 tured ishigakia, Fairm. 



Pronotum strigose at sides crassa, 1 lar. (seulensin 



Clypeal lobes dentate. ,\] je \ 

 Knees of four posterior legs with hairy pads. 

 Pygidium flat; pronotum lightly punc- 

 tured marginicollis, Ball. 



Pygidium elevated; pronotum strongly [G. & P.). 



punctured (grata, Er. (? orientate, 



Knees of posterior legs not padded famclica, Jans. 



Glycyphana jucunda, Fald., and forticula, Jans. — These 

 two closely allied species belong to the genus Oocycetonia. 



Three Japanese species have been placed in the genus 

 Valgus, which has since been restricted by Prof. Kolbe to 

 two or three inhabitants of the temperate zone in which the 

 female has a long caudal spine. Of the three, V. angusti- 

 collis, Wat., and tuberculatus, Lewis, belong to the genus 

 Dasyvalgus, the former resembling D. penicillatus, Bl., while 

 the latter is related to D. ovicollis, Arr. 



V.fumosus, Lewis, also belongs to the group Dasyvalginae 

 but is generically different from the other two species. It 

 agrees in the main with Spilova/gus, Kolbe, but differs by 

 the sharply spinose propygidial spiracle, the slender tarsi, 

 and thoracic carinse converging instead of diverging behind 

 These features are still more strongly marked in a new 

 species to be described. The slender tarsi and the form of 

 the front tibia of the latter would justify its location in the 

 genus Ckromovaigus, Kolbe, but as the two species in the 

 sharp spiracles of the propygidium agree better with each 

 other than with the single species of the other two genera 

 it would be quite unnatural to separate them. Chromo- 

 valgus and Spilovalgus differ only by very slight characters 

 and rather than make yet another genus, which would be an 

 unsatisfactory one as combining features of the two I 



