( 487 ) 



tcrtia jiarte <aj)icali dcutatae; onincs tiMac, prapsprtim ijuatuor aiiticae extiis longi- 

 tudinaliter rusriiloso-striatae. 



Lono-. (cap. excl.) I'.i min., elytr. 11, lat. Id. 



This f'nrm differs from the true Gnorimii.'t iu liavhig the iutercoxal proc'ess 

 of the mescisteriinm proihice.l into a narrow and anteriorly almost vertical 

 tubercle. 



Hab. Naga Hills (ti/pe) and North Manijjur (Assam). 



Sinuaria gon. no v. 



Capite sat foititer in jirothoracem retracto ; maudibulis rotundato-aruuatis ; 

 fronte medio leviter impressa; antenuis articnlis apice truncatis, hand serratis. 

 Prothorace autice valde emarginato, lateribus fortissime late sinuato, inter sinum 

 et anguhim auticum oblique trniieato, angulis posticis valde versus latera productis, 

 panmi arcuatis; basi medio minute bisinuata, lateraliter levissime emargiuata: 

 disco medio earinato-elevato, lateraliter depresso. Scutello .subcordato, apice 

 angnste emarginato. Elytris basi valde depressis, humeris prominnlis, apice 

 acuminatis. Prosterno autice rotundato-dilatato, sutura laterali leviter arcuata, 

 medio elevato, iitrinque inter carinam medianam et suturam impresso. Mesosterno 

 sat declivi. 



This Elaterid genus is closely allied to Ox>jnopterus Hope, from which it 

 differs in the antennae not being serrate, in the jiecnliar shape of the prothorax, 

 in the shoulders of the elytra much more prominent, in the more declivous 

 mesosternum, and iu the evenly rounded mandibles. 



5. Sinuaria aenescens sp. nov. 

 (Pi. Xlli., tig. 4.) 



S. niger, parum aenescens, pube olivacea vestita. Cajiut rugose jiunctatum, 

 iuipressione frontali levi jrilis ochraceis sat densis tecta. Antennae capite cum 

 prothorace vix lougiores, articnlo primo apice modice incrassato, tertio parum 

 longiore, leviter arcuate. Prothorax longitudiue (in medio) fere duplo (ad basim) 

 latior, omniiio minutissime densissime puuctnlatus, margiue externo leviter crassato. 

 Scutelhuu subrotuiidum, parum cordatum, autice latius quam postice, basi minute, 

 apice parum profundius emarginatum, depressum, marginibus basali et apicali 

 recurvatis. Elytra carina lateral! sub angulum humeralem abbreviata, lateribus 

 pone humeros parum imj^ressis, omnino subtilissime creberrime transver.se 

 grauulato-rugulosa, dis]iersis puuctis, passim seriatim dispositis, praecipue ])ro])e 

 suturam sitis iustructa, indistincte longitudinaliter striata, multis impressionilius 

 irregularibus levibus. 



Infra sat dense punctulata; jirosteruum autice rugatum : processus j)roster- 

 nalis basaliter canaliculatus. Metasteruum medio profunde canaliculatum. Tarsi 

 tibiis, praecipue postici, j)arum longiores. 



Loug. o.") mm., elytr. 44, lat. 18. 



Of the impressions of the elytra four are rather large (two on eacli elytron) 

 and conspicuous, one situated just before the middle, the other close to the suture 

 at the beginning of the apical third. The median carina of the prothorax and 

 the higher parts of the elytra arc rubbed, black, shining, ami liave an obvious tint 

 of bronze colour. 



Hah. Kiua P.alu (Brit. N. Borneo). 



