the Tcncbiionidti? of Japan. 385 



stice tubercles larger, tliinl eariiuite at the base, tuborculate 

 posteriorly, 4 to 6 similarly tuborculate, between the tubercles 

 are numerous small nodules which a])parently represent the 

 stri* ; the antennje dull reddish brown, joints 8 to 10 

 markedly transverse ; the legs darker, tibiaj carinate, tarsi 

 reddish. 



Tiiis species resembles B. interniptus, 111., in the sculpture 

 of the elytra, but it is much shorter and relatively broader 

 and the joints of the antennee are much more transverse and 

 less lax. 



Hub. Oyayama. One example, April 26tli, 1881. 



Atasthalus, Pasc. 

 Atasthalus, Pasc. Ann. & Mag. Nat. Hist. 1871, viii. p. 348. 



Type A. spectrum, Pasc. 



This genus resembles Bolitophagus more than Bolitoxenus. 

 In the first the eleventh joint of the antenna is free of the 

 tenth, in Atasthalus tlie tenth joint is incised to admit the 

 base of the terminal joint. In Bolitoxenus^ type B. gibber ^ 

 Motsch., the articulations of the antenna arc more compressed 

 and the prosternuni lias a keel. In the Munich Catalogue, 

 p. 1946, the genus Bolitoxenus includes B. testudinarius, 

 Motsch., and B. tubercalifer^ Motsch. ; these two species 

 belong to the genus Byrsax, in fact the last name is only a 

 synonym of Byrsax horridus, 01. Bolitoxenus bifurcuSy 

 Pasc, should be placed in Bolitomeus. 



Atasthalus dentifronSj sp. n. (PL XIII. fig. 3.) 



Oblongus, subparallelus, nigor vel nigro-brunncus, opacus ; fronto 

 margine 4-dentata ; thorace cornibus duobus validis, parum 

 brevibus, rectis. 



L. 9|-12 raill. 



Oblong, rather parallel, black or dull blackish brown ; the 

 head, frontal margin reflexed and with two prominent teeth 

 in the middle and two others less conspicuous over the bases 

 of the antenna3 ; the thorax, lateral edge lirate, surface very 

 rough with frequent tubercles, with two robust median horns, 

 long enough to cover the base of the antennse from view 

 when seen from above, tips covered with golden or reddish 

 hairs ; the elytra parallel at sides, rough, with a few polished 

 tubercles on what are apparently the third and fiftii inter- 

 stices ; the stria) are represented by irregular punctures ; the 

 antennge and legs dull brown, tibiaj carinatc, not narrowed 

 near the tarsi ; the last segment of the abdomen is rugose, 



