( 231 ) 



3. Mecocerus callosus spec. nov. 



? . Black, clothed with a short olive-black tomentnm. Autennal segments 3 to 

 at apex and the whole of 7 and 8 ]iubeseent-white. On each side of pronotum 

 there is a basal spot close to middle Hue, almost contignous with the spot of the 

 other half, another basal spot near lateral angle, several small dots round a diseal 

 tubercle, three small sjiots between the lateral basal one and the apical margin, 

 and an elongate apical spot near middle line, this latter spot continued over 

 the head, all tawny-ochraeeons, not conspicuous. Elytrum tesselated witli dots of 

 the same colour, a few white spots in third and fourth interspaces before middle, 

 and in third again behind middle, the anterior white spots formed by raised 

 pubescence ; alternate interspace with black tufts, a postmedian one in third 

 interspace being the longest. Underside dotted with grey, the spots confluent 

 on abdomen. Femora with three, tibiae with two grey rings ; first tarsal segment 

 with large grey subbasal ring, fourth with a median one. 



Mesial carina of head slight but distinct, interrupted on frons by a deep 

 slit, but reappearing behind this slit. Pronotum slightly depressed on disc, 

 irregularly grooved laterally, with a rounded prominent tubercle at each side 

 of mesial line before the carina ; the latter snbangulate before the lateral curve. 

 Elytra strongly convex, short, the alternate interstices bearing the black pustules 

 distinctly but slightly elevate. Prosteruum shallowly impressed, raised at each 

 side of the impression, without distinct transverse sulcus before the coxae. 



Length, 12 mm. ; breadth, mm. 



Hah. Mauson Mts., Tonkin, April— May, 2i)(_)U— .30110 ft. (Frnhstorfer). 



1 ?. 



The spots of the upperside, which in this specimen are tawny-ochraceous 

 and rather indistinct, may possibly be grey in other specimens. 



4. Physopterus oculatus spec. nov. 



c??. Black-brown, rufescent, densely clothed with a greyish clay pubescence, 

 irrorated with brown ; an ill-defined stripe commencing on occiput at upper 

 edge of eye continued to base of pronotum, blackish ; a large, slightly transverse, 

 rounded patch just behind middle of elytrum, extending from third stripe to 

 outer margin, velvety black ; the pale pubescence round this patch denser than 

 elsewhere on elytrum ; antenna rufous, brown at base, club black ; legs rufous, 

 femora brownish in middle, tip of tibiae and of first and last tarsal segments 

 and the whole second and third tarsal segments brown-black. 



Rostrum coarsely rugate-punctate, middle sulcus extending to occiput. Eye 

 oblong, lateral. Erons anteriorly broader than the eye is high, measured in a frontal 

 view. Segments 7 and 8 of antenna pubescent-white, 3 one-third longer than 4, 

 = 4, 10=8. Prothorax almost twice as wide at the carina as at the apex, 

 gradually narrowed from the carina forwards ; carina very strongly curved laterally, 

 as in alhogiittafus and sumatranus, more evenly curved than in biplagiatus. Elytra 

 strongly convex, parallel from base to apical declivity ; feebly striate, the stripes 

 indistinctly punctate. Underside dispersedly punctate. First abdominal segment 

 of c? with a mesial, subbasal, acute, cariniform tnbcrcle ; a trace of a tubercle 

 also on the second segment : no velvety duuble spot on metastcrnum. Midtibia 

 of i with a long tooth before the apex on (lie underside ; hindtibia of i somewhat 

 curved. 



