( "185 ) 



supra lateralitor Ifvissime gibbosnm, antice medio late deprcssum, angnlis auticis 

 lotuiidatis. Protliorax disco ante basim pancis punctis grossis notattis, sat snb- 

 tiliter gi-aniilatus, lateribus sat fortiter rugato-grainilatus ; lateribus pone aiigiilos 

 .•niticos ])rouiiucntes deutatos sinuatis, ante basim deute sat aciito armntis. Elytra 

 cloiigata, sulitiliter densissime piuu-tnlata, humeris lireviter deiitatis. 



Mentnm fortiter rugatum ; gnla rngato-granulata, punctis magnis insrnirta. 

 Prosternum transverse bisiilcatiim, sidcis plioatura sat elevata sei)aratis, medio vix 

 jimu'tatnm. Metasterunm et abdomen medio vix punctnlata, illud lateribus grossis- 

 sime subdense, hoc sparsim subtilius pnuctatum, segmento ultimo ad marginem 

 apiealem densius sat fortiter punctato. 



Long. (maud, exc.) 40 mm., mandibl. IT, elytr. 25, lat. Ki. 



The mandibles are shaped as in small males of H. jiarri/i Hope, and H. rhi- 

 noceros (Oliv.), with the flattened outer and underside of the base forming a kind of 

 infero-lateral carina as in the latter species ; the clypeus is formed as in //. parry/', 

 but the median tooth is truncate ; the ante-ocular tooth of the head is not so high 

 as in H. piiriyi, and hardly rectangular, though the ante-ocular carina itself is 

 sinuate behind the tooth. The sides of the pr-othorax are produced towards the 

 eyes, much more so tlian even in H. det/roUei Parry, there lieing a conspicuous sinus 

 i)etweeu this produced angle and the neck. The elytra are much longer than in 

 H. parryi, and posteriorly mneli less rounded, much less so than in H. rhinoceros 

 and deyrollei. The bisulcate i)rostcruum, with an ob\-ious fold separating the 

 grooves, is also a character by which the new form may be distinguished from eitlier 

 of the three mentioned species. 



From H. mamlihularis Deyr., which I have not yet seen, it differs in colour, in 

 the form of the elytra, in the more prominent intero-anterior angle of the head, the 

 more blunt ante-ocular tooth, aud the different outline of the prothorax. 



Hab. Kina B;du (Brit. N. Borneo). 



'<\. (?J Dorcus barbarus sp. uov. 

 (PI. XIIL, fig. 2.) 

 S. X*. rubro-castaueus, mandibulis apice tarsis(|ue sulmigris. Mandibulae lati- 

 tudiue capitis lougiores, in medio abrupte falcato-arcuatae, parte basali de])lanata, 

 dilatata, in basi dente minuto, iu medio dente triangulari armata, parte apicali 

 parum tori|uata, sat tenui, simplice. C]yj)eus firtiter transversus, leviter dei)ressus, 

 4uadranguluris, augulis acutis minime productis, imjiunctatus ; cajiut juxta clypeum 

 smuatum, augulis anticis rotundatis, sed autrorsum productis, carina auteoculari 

 parum elevata uon angulata, dis])ersissime minute ])unctatum, punctis versus latera 

 l-iarum tortibus, pone oculos grossis paulo densioribus. Antennarum tlabellum 

 triarticulatum, articulus ante flabellum acumiuatus. Prothorax longitudine plus 

 iluplo latior, apice utrinciue sat fortiter siuuatus, angulis anticis valde productis, 

 sed rotuudatis, lateribus pone angulqm iinticuui levissime rotuudatis, dein usque 

 ad angulum basaleni rotuudatum subfv-etis, basi medio utrini|ue leviter sinuata ; 

 disco fortius quam cajiut punct;itns, punctis versus latera evanescentibus, iu 

 jiarte laterali ipso parum deplanata ilistiuctis, sat magnis, sed leviter impressis, 

 pone marginem anticmu grossis in ui*^ serie irregulari dispositis. Scutellnm 

 longitudine parum latins, rotnndatn-triangulare, basi grosse piinctatum, apice 

 laeve. Elytra protlu)race septima parte imgustiora, basi truncata, humeris leviter 

 callosa, augulo humerali breviter dentata, lateribus juxta humeros levissime 



