1918.] 



215 



Thorax nearly twice as broad as long, widest beliind, from thence narrowed 

 and rounded to the bluntly rectangular anterior angles ; disc with a pair of 

 punctures on either side of tlie middle line, one at the sides externally, four 

 aloH'T the anterior margin of small size and four similar ones along the posterior 

 maro-in. Scutellum with two or three small punctures at the base. Elytra as 

 long as the thorax, transverse ; puncturation sparing, asperate ; pubescence 

 yellowish. Abdomen with the first visible segment impunctate, the second and 

 third segments with a row of punctures at the extreme posterior margin, other- 

 wise impunctate, smooth, and sfiining, the fourth to the sixth with rather 

 sparing asperate puncturation ; pubescence rather long, stiff, yellowish, by no 

 means dense. 



Hah. BoR^fEO, Mt. Matanl.^ W. Sarawak {G. E. Bryant). 



EucoNOXoso^rA, n. gen. 



Labrum transverse, membranous, only the lateral margins corneous. 

 Mandibles short, stout, triangular, the inner margin closely crenulate nearly 

 up to the sharp apex. Inner l)be of maxilla stout, membranous, gradually 

 narrowed to the extremity, which is corneous, rounded, and densely clothed 

 with fine pectinations, the inner margin of the corneous portion densely 

 covered with stouter pectinations ; the outer lobe appears to consist of two 

 segments, a stout, basal, membranous one furnished at the distal end of the 

 inner border with four long teeth, and a narrower fusiform corneous and 

 densely ciliated apical part. Maxillary palpi 4-jointed, the 1st joint small, 

 transverse, the 2nd narrowed at the base, gradually widening towards the 

 apex, ihe 3rd scarcely longer than the 2ud and of much the same shape, 

 the 4th about as long as, but narrower than, the 3rd, gradually pointed, 

 scarcely subulate. Mentum transverse, membranous, the anterior margin 

 narrower than the posterior, the sides converging. Labium membranous, the 

 lateral margins, central raphe, and the articulation of the labial palpi, corneous, 

 the sides parallel for more than the posterior half, then rather suddenly di- 

 ver<yinff so that the anterior border is verv considerably broader than the 

 posterior. Tongue divided into two strongly diyerging lobes which are rather 

 vndely separated at the base; each lobe narrow at the root and gradually 

 thickened towards the extremity, placed transversely, and lying against the 

 wide anterior border of the labium, the autero-external angles of which extend 

 just beyond their extremities; the anterior margin of each lobe furnished with 

 ten long and strong spines. Paraglossae well developed, extending from the base 

 of the labium t ) the anterior border of the tongue, closely, strongly pectinate. 

 Labial palpi 3-jointed, arising near the anterior margin of the labium external 

 to the root of the tongue ; Lst joint elongate, 2nd much shorter, but longer than 

 broad, 3rd enormously developed, resembling a vertical section of the top of a 

 mushroom, the convex border articulating in the centre with the 2nd joint, the 

 socket being placed near the extremity on the anterior border of this joint; 

 the anterior border of the 3rd joint straight. Prosternuin transverse, with- 

 out trace of a median process : prothoracic episterna very small, the epimera 

 absent. Ant^^rior coxae large, contiguous. Mesosternal process triangular, 

 bluntly pointf d, and reaching nearly to the level of the posterior borders of the 



