148 Mr. F. P. Pascoe on new Genera and Species of 



with the disk forming a prominent line, especially anteriorly ; 

 body beneath more or less finely corrugated. Length 8 lines*. 



Promethis. 



Subfamily TenebrioninjE. 



Caput exsertum, pone oculos collo cyhndrico contractum. 

 Proihorax angiilis anticis productis, rotimdatis ; raarf2;inibns integris, 

 Tihice haud calcaratae ; tarsi, postici validi, breviuseuh. 



The type of this genus is " C^j/s {Iphthimtis) anguJatuSy''^x. f, 

 a species remarkable for the bearded mentum of its males — a 

 peculiarity which does not appear to be anything more than 

 specific. This genus is diiFerentiatcd botli from f^>?s and 

 Iphthimus by the form of its prothorax, and its entire margins 

 when compared with tlie latter, — to which, as a secondary cha- 

 racter, may be added the sculpture of its elytra. The first of 

 the two species described below has been long known in col- 

 lections ; and in my own it formerly stood as a Baryscells^ an 

 unpublished name of Dr. Boisduval. Ij^hthimus ??/_(7er,Blessig, 

 appears to be in some respects intermediate between the two 

 following. 



Promethis lethalis. 



P. nigra, subnitida ; protliorace basi angustiore ; elj'tris postice la- 

 tioribus, fortiter puuctato-striatis, interstitiis couvcxis. 



Hab. Queensland. 



Black, shining ; head minutely punctured ; clypeus sliglitly 

 emarginate at the apex, separated from the front by a fine 

 transverse line bent downwards at the sides ; protliorax very 

 finely punctured, longer than in P. angidafa, gradually nar- 

 rowing towards the base, strongly canaliculate on the disk, 

 with two impressed spots on each side ; scutellum semicircular; 

 elytra mucli broader than the prothorax at the base, and gra- 

 dually widening posteriorly, rounding towards the apex, deeply 

 punctate-striatc, the punctures indistinct, the intervals raised 

 and very convex ; beneath glossy black ; first three segments 



* Mr. F. Bates, as we Lave already noticed, liaviujr withdrawn several 

 species previously placed with Nyctohatcs, to form his two genera Ili/paulax 

 and Chileono, wliicli he places in Ccelonietopina^ it will be necessary to 

 constitute! another for my N. feroiiioidcs. This genus, which I propose to 

 name Jli/dittsus, diii'ers essentially from both the above in having tlie 

 penultimate joint of all the tarsi subbilobed ; it has no grooves beliind the 

 mentum ; and tlie e])i]ileural line terminates at the shoulder, this raised 

 and strongly marked line, wliieh in Jlj/pnii/ax is continuous with the 

 basal, bein;^-- interrupted, the basal line turning baclvwards and running 

 down for a slun-t distance inside and paridlel to the other. 



t Wiegmann's Archiv, 1842, i. p. 174. It is found in Victoria as well 

 as in Tasmania. 



