Staphylinidce of Japan. 37 



the front tarsi in the male scarcely dilated; the middle 

 coxa3 moderately distant. 



This insect is common under seaweed at Amakusa and 

 Iwosima. 



67. Philonthis {Cajiiis, Thomson) vestitus, n. sp. 

 Elongatus, niger, opacus, capite thoraceque crebre 

 fortiter punctatis, omnino opacis, illo medio linea elevata, 

 impunctata, abdomine segmentis 2 — dense subtiliter 

 punctatis, segment© 7" supra parce, subtus dense, punc- 

 tato. Long. 3^ — 4^ lin. 



Intermediate between P. xantlwloma and sericeus, this 

 species is remarkable by the dense and strong, and yet not 

 deep or distinct punctuation of its head and thorax. The 

 antenna3 are black, moderately long and stout, not at all 

 thickened towards the extremity ; 3rd joint much longer 

 than 2nd, 4 — 10 differing but little from one another, the 

 10th about as long as broad. Head quite as broad as the 

 thorax, remarkably opaque, strongly punctured, but the 

 punctuation but little impressed, and not distinct ; it has 

 an impunctate space along the middle. Thorax narrower 

 than the elytra, distinctly narrowed behind, strongly 

 punctured, but with a broad elevated space along the 

 middle, smooth ; it is very opaque, with the exception of 

 the middle line, and even this is scarcely shining. Elytra 

 considerably longer than the thorax, densely and finely 

 punctured, very oj^aque. Hind body, both on the upper 

 and under sides, densely and finely punctured, except the 

 upper side of the 7th segment, which is very sparingly 

 punctured. The legs are pitchy black, the intermediate 

 coxa? not contiguous, the front tarsi dilated in both sexes, 

 the basal joint of hind tarsus longer than the apical joint. 

 The male has a deep notch in the middle of the hind 

 margin of the 7th segment, and the 6tli segment very 

 slightly emarginate behind. 



In company with C. nudus. 



08. Philonthus {Cqfiiis, Thomson) histrio, n. sp. 

 Elongatus, niger, subopacus, pedibus piceis ; capite tho- 

 raceque crebre fortiter punctatis, medio impunctatis ; 

 abdomine dense punctato, segmento 7" supra et infi-a 

 parce punctato. Long. 3 — 4 lin. 



This species is very closely allied to the P. vestitus, but 

 is distinguished as follows : it is rather smaller and more 

 slender, the antenna3 are more slender, the head and 

 thorax, though not shining, have not the very remarkable 



