1904.] Catalogue of the Coleoptera of South Africa. 267 



B 1 . Anterior tibiae bi-dentcate. 



Clypeus rounded laterally and deeply emarginate. 



a 2 . The penultimate joint of pedicel plainly laminate. 



Elytra with broadly interrupted bands of scales . . . . perturbator, 



a 1 . Penultimate joints of antennae not aculeate. 



Prothorax very densely hairy and also scaly ; elytra with 



a denuded patch on each side of the posterior dorsal part grondahli. 



Prothorax densely hairy, almost languinose, without any 



scales pilosicollis ~ 



PSILONYCHUS DERIDENS, n. Spec, 



Plate XLIIL, fig. 28. 



Dark bronze-green, moderately shining, female testaceous-red r 

 antenna?, piceous in the male, red, with the club infuscated in the 

 female, head with a fairly distinct clypeal raised line in both sexes, 

 head and clypeus clothed with long, greyish hairs in the male and 

 without any scale, but with some squamiform hairs in the female ; 

 elytra with four rows of not very closely set, white, elongated 

 scales, broadly interrupted two or three times ; edge of propygidium, 

 pygidium, and abdomen clothed with denser and slightly longer 

 scales, pectus with a dense sub-flavescent pubescence ; head and 

 clypeus scabrose ; prothorax covered with deep, round, contiguous 

 punctures, somewhat rugose in the anterior part, less so in thepos- 

 terior, grooved from the base to past the middle, and with the walls 

 of the groove smooth and shining, on each side is a basal, smooth, 

 longitudinally elongated patch ; scutellum cordate, impunctate ; 

 elytra sub-cylindrical in the male, slightly ampliated laterally before 

 the median part in the female, feebly bi-costulate on each side and 

 having rows of irregularly set punctures deeper in the male than in 

 the female ; in the latter the scales on the upper side are very few, 

 and those clothing the under side are very much finer than in the 

 male ; legs hairy and scaly. 



Length 13-1 3-J- mm. ; width 6J-7J mm. 



Hab. Natal (Umvoti), Southern Ehodesia (Salisbury). 



Psilonychus eckloni, Burm., 

 Plate XLIIL, fig. 29. 

 Handb. d. Entomol., iv., 2, p. 289. 

 P. ferrugineus, Boh., Ins. Caffr., ii., p. 87. 



Male : Keddish-bronze, shape and size of the preceding species, 

 but with a different vestiture, being clothed on the upper side with 



