( 490 ) 



From 0. Jfeuti)i>i.ri Est. and 0. Imuaeri Fst. it may l)e at once difleri'iitiated 

 by its size and colour, by the reddisli lust joint of the antennae, and by the prothorax 

 being rather strongly bisiunated at each side of the base. 



'•». Omotemnus conicus sj). no v. 



? . 0. statnra fere Ci/rtotraclte.li ; infra ater, tibiis fnlvo-mbris ; supra rnber, 

 velutinus. Caput sat fortiter, in vcrtice dense, jiunctsitum, fovea interocnlari pro- 

 funda. Rostrum l)asi fere rectum, in tertia parte apicali sat subito arcuatum, snlco 

 laterali levi, sat brevi, sulcis dorso-lateralibus profundis, sed medium rostri vix 

 attingentibns, carina niediana antrorsnin gradatini erescente ct deinde decrescente, 

 in apice triangnlariter impressa, retrorsum suh'o jirofundo usque trans antennarum 

 iusertionem ascendente instructa : basi sat dense, medio sparsim crasse punctatum, 

 apice laevi, snlco mediauo dorsali fortiter punctato. Antennarum articnlus nltimus 

 fnlvo-rnber. Prothorax lateribus gradatim versus anticum attennatus, lobo mediauo 

 basali sat producto, rotundato, basi utrimiue liisinuatus, infra levissinie <rranulatus 

 (prosterno fere laevi), multis punctis re.uiilariter dispersis, eornni margine infero 

 elevate, tnberculiformi, iustructus ; dorso disperse sed conspicue punctatns, basi 

 medio imjiunctata excepta, linea media minime elevata, <luabus plagis ap])roximatis 

 nigris, intus rectis, extus subri.tuudatis uutatus. Scutellum nigro-vehitinunj, linea 

 mediana inconspicne elevata, basi sparsissime grauulata. Elytra (luinque-striata, 

 striis levibus, basi parum punctnlatis, omnino minute disperse granulato-puuctata ; 

 omnibus marginibus angustis, plaga postmediana laterali elongata, macula(iue 

 humerali, nigris. Pygidium medio parum convexum, sat aequabiliter dis{)erse 

 ])unctato-granulatum, femora s])iirsim imiietata : tibiae rnbrae, levissime longi- 

 tndinaliter impressae. 



Ijoug. (cap. excl.) 4U mm., rostr. 11, elytr. 18, hit. IT. 



The exterior border of each puncture of the thorax is raised and forms an 

 obvious granule ; the punctures of the elytra and pygidium have the anterior border 

 rnised. The structure of the sides of the pro-, meso-, and metatliorax is almost the 

 same ; the fine granules are a little denser on the metasternum, while here the 

 granuliferous punctures are sparser. The hairs of tlie legs and hist abdominal 

 segment arc of a blackish brown colour. 



Ilalj. Barram River, Borneo (A. Everett). 



In pattern this species is allied to the preceding one, but it has the outline of 

 a Cijrtotntchelua, like 0. cei/lanensix Roel. and 0. carnifex Fanst, from both of 

 wlii<',h it differs in colour, in tlie sculprnre of the rostrum, in the outline of the 

 prothorax, etc. 



10. Omotemnus gracilis sji. nov. 

 $. O. forma ('yrtob-aclifti. Rostrum riilii'niu, anuuitum, versus apicem uigres- 

 cens, parte crassata basali disperse punctatum, inter antennas sulco minuto sat brevi 

 instructiuu ; supra profunde bisulcatum, sulcis antennarum insertioueni attiugenti- 

 bus, carina mediana separatis ; luic carina antrorsnm levissime elevata, ad aj)icem 

 aequabiliter decrescente, in a]iice ipso bifurjata, retrorsum gradiitim evauesceute et 

 medio fortiter confertim ])unctata, ])unctis confluentibus, sulcis dorsalibus rngulosis, 

 versus basim parum punctnlatis ; lateribus profunde nnisulcatum, snlco partem 

 crassam basalem non attingente, sat subito abbreviato, sjiarsissime ruguloso-punc- 

 tato. Caput fovea interocnlari ]iunctiformi profunda instrnctum, punctulatnm. 



