Lucanidce of Japan. 339 



Above blue-black, rather shining, rather parallel ; 

 beneath black. Head rather thickly and strongly punc- 

 tured ; clypeus smooth, excrescences in front of eyes 

 prominent ; mandibles black ; when closed the basal 

 teeth close on to the clypeus, and nearly touch each 

 other. The upper part of each tooth forms a ridge, 

 which extends along the mandible, forming a medial 

 carina. The punctuation of the thorax is rather finer 

 than that of the head, and in shape and dilatation at 

 sides agrees with P. quercus, Weber; scutellum is 

 smooth at the base ; elytra sculptured in the usual form 

 of the genus. The legs are testaceous ; knee-joints and 

 front tibial black ; tarsi pitchy. 



The female is more variable in colour, being brassy, 

 brassy green, and blue-black, with the middle and hind 

 tibial only generally pale ; but I have specimens with 

 wholly red legs, and one with legs entirely black. 



P. delicatulus is of more slender form than caraboides, 

 and the elytra are somewhat more depressed in the 

 front of the middle, with the apical callosities more 

 prominent. The sculpture, too, is considerably finer ; 

 in the male the apical teeth of the front tibiae are but little 

 developed, and the crenulations above them are remark- 

 ably regular, there being an absence of any tooth 

 standing out from the rest in a prominent manner. The 

 middle tibial also are without any external teeth. 



Found in June at Oyayama, Odaigahara, Chiuzenji ; 

 and on Ontake in August. 



Figidus, like Aligns, is a tropical genus. I took twenty 

 specimens of F. binodulosus, C. Waterh., at Ivonose in 

 May, 1881, from an old log in the forest; all the specimens 

 are alike and agree well with Waterhouse's type and 

 description. Of F. punctatus I obtained only one speci- 

 men from an old Celtis at Nagasaki in February, and I 

 believe it is a good species. There are five specimens in 

 my original collection. 



Ceruchus lignarius, n. s. (PL XIV., fig. 4). 



Niger, nitidus, capite utrinque rugoso, in medio sparse 

 punctato, fronte in medio excavato, prothorace punctato 

 apice lseve marginato ; elytris striatis, interstitiis sparse 

 punctatis. Long, cum mandib. 7^ lin. 



$ , mihi ignota. 



Three males. 



