1878.] 273 



Belongs undoubtedly to tliis genus, altbougli tlie general form of 

 body is different ; the elytra especially being parallelogrammical, con- 

 vex, and with a considerable posterior declivity, whilst in the other 

 two known species they are somewhat dilated beyond the middle, with 

 expanded lateral margins and very gradual posterior declivity. The (^ 

 is of a tawny-chestnut hue, paler on the elytra, and the ? dull sooty- 

 black ; but I suspect the ^ specimen to be somewhat immature. The 

 explanated lateral margins of the thorax are still broader than in JI. 

 spinipennis, and in the ^ are separate from the disc by a rather distinct 

 groove : there is also a distinct dorsal channel in this sex. 



Lake Nyassa ; discovered by Mr. E. D. Young, R.N. 



Cacosceles Lacoedaieei, n. sp. 

 C. (Edipus, Lac. Grenera, viii, p. 65. Atlas, pi. 82, f. 1. 



The illustrious author of the " Genera " naturally mistook the 

 only species he found in continental collections for the QSdipus of 

 Newman, which appears to be an exceedingly rare insect. I acquired, 

 some time ago, from one of Mr. R. Trimen's collections a specimen 

 ticketed " Mossel Bay, S. Africa," which agrees exactly with Newonan's 

 description, and is a very distinct species from that of Lacordaire. In 

 the true (Edipus the anterior angles of the thorax are dentiform, the 

 antennae are longer, their joints much more slender and not cupuli- 

 form, but simply a little produced on one side at their apices ; the 

 colour moreover is wholly dark chestnut, instead of tawny-castaneous 

 as in C. Lncordairei. 



The thorax is relatively much broader. With regard to the ar- 

 mature of the sides, it would be better defined as consisting of two 

 broad teeth, the front one of which is obliquely curved, and the second 

 extremely acute, and subspiniform at its apex. 



CNETIIOCERFS, nov. gen. 



Gen. Priono afflnis. Corpus totuni mai-is sericeo-puhescens,femin(B nudum. Oculi 

 Bupra/ere contigentes. AntenncB maris corpore longiores, artictdis 3 — 11 opacis, dense 

 irrejulariler strigosis, apice utrinque acute productis : femincB corpore hreviores, 

 articulis 3 — 11 suhlinearibus, apice paulo productis, 3 — 7 lateraliter, 8 — 11 omnino 

 ut in (J strigoso-opacis. Thorax ut in Frionis lypicis, transversim quadratus, lalerihus 

 tridentatis. 



Cnethoceuus Messi, n. sp. 



Priono cor'mv\o paulo magis elongatus, minus convexus; castaneo-fuscus, $ stqjra 

 puhescentia incumhenti fulvo-sericeo vestitiis ; capite i/wraceque punctaio-scalrosis ; 

 elytris obtuse, indistincte, subcostatis, apice late rotundatis, supra hasi scdbroso-piinc- 

 tatis deinde suhtiliter alutuceo-punctulatis : pectore fulvo-hirsuto ; ahdomine $ sidj- 

 opaco, $ nilido, irregulariter punctata. 



