Geodephagous Coleoptera of Japan. 225 



cavis, subtiliter granulatis, singulo serie tuberculorum 

 angustorum foveolis vix impressis et baud inetallicis 

 separata ; subtus nigro, laevi polito. Long. 30 — 34 mm., 

 <?, ?. 



Shimonosuwa Lake. Taken plentifully by pressing 

 down tbe aquatic weeds floating round the margin of 

 the lake. 



A fine and well-marked species, nearest allied to C. 

 clathratus, but different in shape and wanting the metallic 

 fovese of the elytra. The tubercles in the broad furrows 

 are always narrow, and are sometimes scarcely elevated 

 or perceptible. 



Carabus procerulus, Chaudoir. 



Chaudoir, Eev. & Mag. Zool., 1862, p. 486. 



Yokohama. Elevated forests in Central Japan, Chiu- 

 zenji, Morioka, Awomori. Winters under bark, and in 

 summer comes freely to sugar. Also one specimen on 

 Oyayama in Kiushiu. 



Mr. Lewis in his notes distinguishes as a separate 

 form the Yokohama specimens (of which he has only 

 three) and those from the other localities above men- 

 tioned. The only difference I can detect is a slight 

 modification in the outline of the thorax; the Yokohama 

 form being less cordate, i. e., the sides are more gradually 

 rounded immediately behind the anterior angles and less 

 contracted behind. This difference, however, is not con- 

 stant, and specimens from distant localities are as nearly 

 as possible identical in form of thorax. The females 

 vary in the more or less elongate-ovate form of the 

 elytra. 



Carabus arboreus, Lewis. 



Lewis, Trans. Ent. Soc. Lond., 1882, p. 526. 



Paullo minus elongatus, fuligineo-niger opacus ; tho- 

 race quam in C. procerulo breviori ante medium magis 

 rotundato-dilatato angulisqueposticis minus elongatis vix 

 retrorsum productis; elytris quoad sculpturam simillimis, 

 sed minus prolongatis, fcem. ovatis ; segmentis ventrali- 

 bus sine sulculo basali. Long. 27 — 32 mm., $ , ? . 



Sapporo, Bibi, and Junsai ; Yezo. In damp forests 

 under bark and logs. 



