Coleopterous Family Dermo3tiJ:i\ l^."^ 



tlic liiti'ial margin litit not (|uit(' extending to tlic suture, uimI 

 JiuotliLM- nrarly rouml tfrniiiuil patcli Inaviug only llic 

 extieinc upex bhick. 



Gcuns PsACUS. 



Tliis gtMius, formed by Pascoo for an Australian insect nnd 

 ]daced hy liini in the l{lii|)iceiida', in reality Ixdouf^s to the 

 Derincf^tidft', heino; a hi;j;lily devtdoped form rcdated to T'ogn- 

 dermo. The a»)tennae, in the male especially, have attained 

 an extraordinary development, and the sides of the ]irothorax 

 in that sex are much dilated, to form a lar<je cavity beneath 

 for the reception of the <^reat fan- like club. This and the 

 lar<^e size of the female give the two sexes a strikiiij^ly 

 different aspect. The possession of a frontal ocellus, over- 

 looked by Pascoe, and many other features leave no doul>t as 

 to the true athnities of the insect. Trogoderma serrigir, 

 Sharp, from New Zealand, is a nearly related s[)ecies. 



Genus Cti:sias. 



The name Tiresiaft was substituted for Clesi'as by Newman, 

 on the ground that the latter name had been previously used 

 by Hiibner; but Hiibner's genus is Chesias, so that Tiresias 

 is reduiuhint. 



Tiie South-African species here described has little super- 

 ficial resemblance to the only hitiierto known s] ecies, C. serra, 

 ¥., but the form of the antenna, the only really distinctive 

 feature of the genus, is practically identical, and, as there 

 seems to be no structural difference of any importance, I put 

 the two insects together. If, as is possible, the identity 

 in the structure of the antenna? is only the result of parallel 

 developmenf, then the genus Ctisias ceases to have any 

 justitieation, and both insects must bo regarded as only 

 aberrant .species of Trogcdertna. 



Clcsins vnriegatn, sp. n. 



Is igra, elytris hie illic obscure rufo-variogatis, corporc subtus ubique, 

 supra maculatiiu, albido-setoso ; late ovala, crebre punetata, 

 oculis mngnis,iiropc antennas i)rofiindc oniarginatis, pronoto lato, 

 postice fortiter lolnito, lol)0 rotimdalo ; clytrorutu apioiljus 8epa- 

 raliin rolundatis; antennis tarsiscpio rulis, harimi clava niapDii, 

 3-arliculata, articulis antice valde lobatis, funieulo brevissiniu. 



Long. 3"5 mm. 



Hab. IhlODESIA . Salisbury. 



