APPENDIX. 
297 
Asmonax, gen. nov. 
Characteres plerumque sicut in Encauste ; differ!; antennarum articulo tertio vix longiore quam 
secundus, protlioracis lateribus compressis, sinuatis, angulis anticis depressis, disco insequali, 
bicostato, elytris interstitiis alternis costato-elevatis. 
This new genus is nearly allied to Encaustes, but has a very different facies owing to the form of the 
thorax, and the costae on it and on the elytra. The front of the prosternum is plain as in Encaustes , that 
is to say, not elevated nor brought into a point in front as in Micrencaustes. 
a 
Asmonax whiteheadi, n. sp. Kina Balu. 
Anthracinus, niger, nitidus; antennis articulis octo globuliformibus, tertio vix elongato, tribus 
ultimis transverso-compressis, pubescentibus ; capite opaculo, fere lsevi, inter antennas transverse 
impresso ; prothorace transverso-subquadrato, ad angulos posticos parum angustato, hevi, in 
medio nitidulo, obsolete haud acute bicostulato, ad margines subopaco, antice posticeque obsolete 
fossulato, punctis nonnullis hie illic dispersis, margine laterali tenuiter elevato ; elytris tenuiter 
punctato-striatis, costis tribus elevatis, quarta etiain externa cum suturali ad apicem conjuncta, 
seriebus duobus inter costas singulas. Abdomen fortiter sparse punctatum. Long. 18-19 millim. 
Wholly black and shining, subopaque in places, as the sides and lateral reflexed underside of the 
thorax. Owing to the form of the thorax, which has the sides sinuate, turned in and downward at the 
front angles, and the strong double ridge on the centre of the thorax, this species has a remarkable and 
Endomyckid appearance ; the costate elytra are an exaggeration of what takes place in such species as 
E. opaca, Crotch. The shortening of the third joint of the antennae and their bead-shaped appearance 
show this to be a strongly modified form. The femora are compressed and sinuous just as in Encaustes ; 
the middle tibia; have a tootli-like projection externally, just above the insertion of the tarsi, and are 
pubescent internally at their apices. The elytral epipleura are pitchy brown, but not noticeably so, and 
have obsolete transverse wrinkles. 
I have only seen four examples of this species, viz. those obtained by Mr. Whitehead. I cannot 
distinguish the sexes. 
Endomychid^e. 
Amphisternus arm at us, n. sp. Kina Balu. 
Niger, opacus, obsolete varioloso-punctatus; thorace subquadrato, angulis anticis acutis, valde pro¬ 
duces ; elytris spinis duabus acutis asneo-micantibus, una subhumerali, altera conoidea in medio, 
apice acute mucronato, tuberculisque duobus nigris nitidis, uno basali uno apicali ; femoribus 
clavatis, apicibus piceis. Long. 8 millim. 
Rather larger than A. spinicollis ; and at once distinguished from both the described species of 
spinous Amphisterni by the two black tubercles, the produced front angles of the thorax, which are like 
those of A. auriculatus but not reflexed, and by the fiery coppery or aeneous colour which is seen on the 
shining parts. The head is thickly punctured, rather shining, and the antennae have all the joints from 
the third to the eighth elongate, the third longer than the two following united ; the sides of the thorax 
are slightly angulate in the middle and narrbw a little to the base; the disk is quite opaque, with coarse 
confluent large punctures. Of the elytra the anterior tubercle has a pitchy tint, the humeral angle is 
reflexed and smooth, as is the basal margin ; the first lateral spine is a little below the shoulder, very long 
and acute, wide at its base, but compressed if viewed from behind, brassy black ; the middle spine more 
upright but still divaricating, conoidal at its base ; both spines punctured at their base, as the elytra are. 
The posterior tubercle is bluish black and smooth ; the apical production of the elytra is external to and 
independent of the sutural angle, which is itself quite distinct—it is in fact part of the margin itself, the 
epipleural fold being continued along it as a groove. The legs are brassy black, the club of the femora 
distinctly pitchy. 
Several specimens of this interesting new species were obtained by Mr. Whitehead. 
Eumorphus tumescens, n. sp. Kina Balu. 
E. marginati statura et similitudine ; niger, elytris nigro-cseruleis, late (humeris minus) marginatis, 
apicibus subacutis, maculis quatuor magnis aurantiacis. Long. 17, lat. 13 millim. . 
2 Q 
