86 REV. H, S. GORHAM ON [Feb. 2j 



E. opaca, Crotch. The shortening of the third joint of the antennse 

 and their bead-shaped appearance show this to be a strongly modified 

 form. The femora are compressed and sinuous just as in Encamfes ; 

 the middle tibiae have a tooth-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. 



Amphisterntjs ar'matus, n. sp. (Plate IV. fig. 3.) 

 Niger, opacus, obsolete varioloso-pnnctatus ; thorace suhquadrato, 

 angulis anticis acutis, valde productis ; elytris spinis duabus 

 acutis (BTieo-micaniibus, una subhumerdli, altera conoidea in 

 onedio, apice acute mucronato, tuberculisque duobus nigris nitidis, 

 una basali uno apicali ; femoribus elavatis, apicibus piceis. Long, 

 8 millim. 

 Hab. Borneo, Kina Balu {Wliiteliead). 



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 J. auricuJatus but not reflexed, and by the fiery coppery 

 or seneous 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 angu- 

 late in the middle and narrow 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 arid 

 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 com- 

 pressed 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, u. sp. (Plate IV. fig. 4.) 



E. marginati statura et similitudine ; niyer, elytris nigro-cceruleis, 



late (humeris minus) marginatis, apicibus subacutis, maculis 



K quatuor magnis aurantiacis. Long. 17, lat. 13 million. S . 



Mas, elytris in medio conjunctim alte et acute elevatis, pro- 



thoracis angulis posticis acutis, haud longe productis ; tibiis 



