322 



Mechistocerus languidus, Lea. 



The type of this species was probably somewhat abraded, 

 as a female now before me (from Cairns) evidently is in per- 

 fect condition and has the peculiar scales (much as on the 

 elytra, except that they are slightly larger) denser on the 

 sides and front of prothorax than elsewhere; but amongst 

 them may be noticed setae similar to those on the type. 



The female differs from the male in having the rostrum 

 longer, thinner, paler, and more evenly curved, and only the 

 basal third squamose ; the scape inserted somewhat nearer 

 the middle of rostrum ; the front legs shorter, and their tibiae 

 without a conspicuous fringe. 



Mechistocerus denticulatus, Pasc. 

 Of the male of this species Pascoe stated "tibiis anticis 

 denticulis in series duas ordinatis." Three males (two from 

 the vicinity of Cairns) of the species before me each have the 

 teeth on the front tibiae so arranged that when a tibia is 

 viewed directly from above a conspicuous fringe of teeth is 

 visible on each side ; but in addition there are a few teeth 

 forming an irregular third row. These specimens also have 

 three feeble pale longitudinal stripes on the prothorax. 



Var. MINOR, n. var. 



Four males (also from Cairns) differ from the normal 

 form in being much smaller (3f-6 mm.) and with the fringes 

 of teeth reduced in size, so that when a front tibia is viewed 

 from above only one row of teeth is visible at a time, and 

 they have no remnants of a third row. These specimens also 

 are entirely devoid of longitudinal markings on the prothorax. 



Mechistocerus cancellatus, Lea(?). 

 There are two specimens before me (from Cairns and 

 Kuranda) which, with some doubt, I refer to this species. 

 They differ from the types in having the basal segment of 

 abdomen gently concave, and with large punctures at base 

 only, elsewhere and the second segment with small punctures, 

 usually concealed by the setae they bear. The punctures on 

 the metasternum are also smaller. They are probably males, 

 and the types are probably females. They have the abdominal 

 punctures much as in puiictiv eiitris , but all the femora are 

 strongly dentate. 



Perissops medionotatus, n. sp. 



S. Black; antennae of a dingy-red. Moderately 

 clothed with more or less ochreous scales, closely applied to 

 derm, and in places condensed into feeble spots. 



Head strongly convex, with a feeble median line, ocular 



