236 Dr. Malcolm Camoron on 



punctured; the first two joints of the antennae moutli-iiarts and 

 legs testaceous. Length 2-4 mm. 



Head rather large, transverse, the temples rounded and narrowed 

 posteriorly, the eyes large and moderately prominent, the disc 

 longitudinally impressed in the middle, finely and rather closely 

 punctured, finely pubescent. Antennae with the 2nd and 3rd 

 joints of equal length, the 4th to the 10th transverse, gradually 

 increasing in breadth, the penultimate fully twice as broad as long, 

 the 11th elongate, pointed, rather longer than the two preceding 

 together. Thorax strongly transverse, one and a half times broader 

 than long, widest before the middle from thence the sides rounded 

 and narrowed anteriorly, narrowed and slightly sinuate to the 

 obtuse posterior angles, bordered; the base slightly sinuate on 

 either side, bordered; disc posteriorly with a broad impression 

 sometimes obscurely divided into two, and before the base with a 

 transverse row of rather large close punctures, the rest of the surface 

 finely and uniformly pimctured and finely pubescent. Elytra broader 

 and a little longer than the thorax, transverse, the sides gently 

 rounded, with a sculpture consisting of larger and smaller superficial 

 punctures, which towards the shoulders tcJid to become rugose 

 and much closer tlian those of the disc ; pubescence fine. Abdomen 

 more strongly and closely punctured anteriorly especially at the 

 bases of the segments, more finely and sparingly posteriorly, rather 

 finely and sparingly pubescent. 



Hab. One specimen in seaweed at Pasir Panjanff ; another 

 at liofht on board off the town. 



Prosilusa, n. ^en. 



Labrum transverse slightly produced in front in the middle line, 

 feebly sinuate on either side, the anterior angles rounded. Mandibles 

 rather stout, somewhat prominent, curved at the extremity and 

 pointed, the outer margin Avitli a small notch, the inner border 

 of the right with a tooth. Maxillary palpi 4-jointed, the 1st joint 

 small, the 2nd elongate slightly widened towards the apex, the 

 3rd as long as, and scarcely wider than the 2nd, the 4th subulate 

 about one-third the length of the 3rd. Inner lobe of the maxilla 

 narrow and elongate, pointed and incurved at the tip, the inner 

 margin furnished with short and stout pectinations anteriorly, and 

 with long and stout pectinations posteriorly; outer lobe narrow, 

 but broader than the inner, ciliatc at the apex. The tongue small 

 and rather short, not extending for half the length of the 1st joint 

 of the labial palpi, split nearly to the base into two narrow lobes. 



