LOISTGICOEK BEETLES OE JAPAK. 215 



pectore lateribus argenteo-pubescenti, metasterno extus fusco- 

 nigro; tarsorum articulo unguiculari nigro. Long. 12 millim. c? $ . 



Nikko. Several examples of both sexes, exactly similar in 

 colours and markings. 



In O. gihhicollis the enlarged posterior part of the head is not 

 tumid, but gradually narrowed, and the convexity of the thorax is 

 compressed posteriorly ; in O. grallatrix the posterior part of the 

 head is distinctly quadrate and short, and the disk of the thorax 

 forms an even convexity without compression. Both species are 

 congeneric with Acmeops ligata, Lee, and other North-American 

 species referred by American authors to the genus Acmeops. 



1/ GrEAMMOPTEEA SIGKIFEEA, n. sp. 



$ . G. gibMcolli iterum afiS.nis. Paullo gracilior, nigro-fusca, 

 partibus oris, clypeo, coxis femoribusque basi, testaceo-flavis ; 

 tibiis 4 anterioribus antennisque basi fusco-rufi?, elytris utrinque 

 vittis duabus (altera marginali altera discoidali) paullo ante 

 apicem terminatis fasciaque ante apicem, fulvo-testaceis ; capite 

 et thorace creberrime punctatis, illo post oculos usque ad collum 

 rotuudato-angustato, hoc disco valde convexo, convexitate pos- 

 tice perparum compresso ibique pilis flavo-sericeis convergentibus ; 

 elytris {S 2) subliuearibus apice truncatis (angulo exteriori 

 rotundato), supra crebre sed discrete punctatis ; abdomine fulvo, 

 nigro-maculato. Long. 8-10 millim. 



Var. 5 . Fascia aute-apicali deest (thoracis marginibus anticis 

 et posticis scutelloque fulvis). 



Var. ? J ■ Multo minor, vitta discoidali cum fascia conjuncta, 

 pedibus (tarsis exceptis) toto fulvis. Long. 6-7 millim. d" . 



Var. § (G^. mutata). Elytra fulva, vitta angusta suturali ante 

 apicem termiuata (ibique macula triangulari), maculis tribus 

 utrinque raarginalibus apiceqiie nigris, thoracis marginibus 

 anticis et posticis, antennis et pedibus fulvis. Long. 10 millim. 



Var. 5 . Eadem : sed vitta suturali multo latiori, femoribus 4 

 posticis apice, antennis (basi excepta) nigris, 



Nikko ; Oyama ; Hitoyoshi. 



'^ Geammoptera amentata, n. sp. 



G. signifercB affinissima ; differt capite post oculos recte angus- 

 tato, postice (ante collum) distincte sed obtuse angulato, elytris 

 5 apice singulatim rotundatis, S obtusissime truncatis. Magis 

 convexa, fusco-nigra, partibus oris, antennarum articulis basa- 



