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



Nearly related to Cestrmus is Astda serricollis^ Hope*; it 

 differs generically in the epiplenrge of its elytra being broader 

 and horizontal or subhorizontal, and the mesosternum entire 

 anteriorly, the last joint of the labial palpi oblong-ovate and 

 somewhat acuminate, and the mentum trapeziform. I propose 

 to call this genus Achora. Opatrum denticolle^ Blanch, f, is 

 probably another species. 



TyPHOBIA. 



Subfamily Diaperinjs. 



Antennce art. omnibus obconicis, ultimo excepto. 

 Tarsi postici art. primo elongato. 



The character of the antenna at once separates this genus 

 from DiaiJeris ; to this may be added the peculiarly deep opa- 

 city of the coloration and the more flattened form. There is a 

 slight transverse elevation on the forehead of one of my spe- 

 cimens J. 



Typhobia fidiginea. 



A. ovalis, subdepressa, nigra, opaca; corpore infra, antennis pedi- 

 busque rufo-testaceis, nitidis. 



Hab, Queensland ; Victoria. 



Eather narrowly oval, subdepressed, black, opaque ; head 

 somewhat pitchy, finely punctured ; prothorax impunctate, 

 anterior angles slightly produced, the lateral marginal line 

 glossy reddish testaceous ; scutellum transversely triangular ; 

 elytra finely striate-punctate, the punctures minute, the inter- 

 vals of the stri^ broad and very slightly convex ; body be- 

 neath, legs, and antennae glossy reddish testaceous. Length 

 2^ lines. 



Plafydema^ aries. 



P. ovahs, modice convexa, nigra, nitida ; elytris striato-punctatis, 

 fasciis duabus, ad suturam interruptis, luteis. 



Hab. Brisbane. 



Oval, moderately convex, black, shining ; head finely and 



* Trans. Ent. See. ser. 1. iv. p. 108. 



t Voy. ail Pole Slid, Ins. Col. pi. 10. fig. 13. 



t The males of a great many species of the subfamily, especially in the 

 genera Platydema and Arrhenoplita, have the head furnished with two 

 short horns, either between the eyes or a little above them. But in a 

 species from Brazil, lately given me by Alexander Fry, Esq., these horns 

 are transferred, so to say, to the apex of the prothorax. This remarkable 

 insect will form a new genus. I have adopted the name Arrhenoplita of 

 Kirby (Faun. Bor.-Amer. Ins. p. 235) instead of Hoplocephala, which had 

 been used years previously by Cuvier for a genus of Ophidians. 



§ De Cast, et Brulle, Ann. d. Sci. Nat. xxiii. p. 350. 



