the Elateridae of Japan. 189 



minutely sculptured on the upper surface ; the head under 

 the microscope occllately punctured, frontal carina projecting 

 in front of the eyes, eyes somewhat coarsely granulate ; the 

 thorax, median line obsolete, basal carina short, not mucli 

 raised, curved, hind angles short and blunt ; the scutellum 

 relatively large ; the antennte wholly black, tirst joint rather 

 large and short, the others fine and small and equalling each 

 other in size ; the tarsi are not quite so black as the tibite. 



In size and opacity somewhat like G. agilis^ but the frontal 

 carina projecting before the eyes is a salient specific character 

 and one, as regards this series, peculiar to it. 



Hah. Nikko. 



Cn/ptohi/pmis agilis^ sp. n. 



Angustatus, niger, opacus, griseo-pubesceus ; supra densissime 



punctulatus ; antennis pedibusque elongatis. 

 L. 2\ mill. 



Narrow, black, opaque, with very short grey pubescence j 

 upper surface very densely punctulate ; the head with a 

 median longitudinal impression well-marked, carina semi- 

 circular ; the thorax, median smooth line clearly visible 

 behind the neck (but in one specimen wholly absent), widest 

 in the middle, more parallel in male than in female, basal carina 

 fine, rather long and curved, hind angles short and blunt ; 

 the elytra, striaj very even and well-marked ; the antennae 

 wholly black, basal joint rather large, the others long and 

 rather slender ; the legs black, tarsi long and dusky brown. 



This species is not like any in the present series except 

 C. ciuefactus, which is not so narrow and is more opaque. 



Uab. Yokohama. Taken at Bukenji in a dry arable field. 

 Found running actively in the sunshine in early spring 

 accompanied by a variety of Blechrus maurus, Sturm. 



Section I. Scutellar fovea absent. 



Cardiophorus pinguis^ sp. n. 



Robustus, niger, nitidus, griseo-pubescens ; supra minute et parum 

 dense punctulatus ; scutello baud foveolato ; antennis pedibusque 

 nigris. 



L. 74 mill. 



Robust, black, shining, pubescence griseous ; the head 

 evenly and very finely punctured, anteriorly depressed, carina 

 semicircular in the middle; the thorax punctured like the 

 head, hind angles short, nearly straight and obtuse ; the 



