40 Mr. F. P. Pascoe on some new or little-hiown 



Australia, and so far it appears to be absent from the Indian Islands. 

 The present insect is rather larger, with a shorter thorax, than any 

 Casnonice that I am acquainted mth. 



SosTEA [Parnidae]. 



Head small, completely retractile within the thorax. Antennae re- 

 ceived, in repose, in a cavity beneath the eye ; 11-jointed, the first very 

 large, laminate, the second dilated inferiorly, the remainder forming a 

 compact fiabellate mass. Eyes rounded, entire. Mandibles bidentate at 

 the apex. Maxillae with lobes, short and broad. Maxillary palpi short, 

 the last joint very large, cylindrical ; the labial claviform. Mentum 

 transverse, lobed in front. Labium dilated anteriorly. Prothorax 

 transverse, convex, nearly semicircular. Elytra ovato-triangiilar, very 

 convex, gibbous towards the base. Legs slender, coxae distant, tarsi 

 short. Prosternum received in a notch of the mesosternum. 



These characters are drawn up exclusively from S. Westwoodii ; 

 but the other species so completely resemble it, that there can be no 

 doubt as to theii' generic identity. In all, the elytra have nine rows 

 of punctures on each. The structure of the antennae will be better 

 comprehended by the figure* than by any description, but owing to 

 their minuteness, I was unable to detach completely the large basal 

 joint ; when in repose it appears to act as a valve, closing in entirely 

 the rest of this organ : all the joints composing the fiabellate mass 

 are what may be called boat-shaped, except the last, each being re- 

 ceived at its base, and for the greater part of its length, in the con- 

 cavity of the preceding one, — the first, however, being so much more 

 dilated as so far to enclose the succeeding or fouilh joint, that it is 

 only visible at its free extremity ; and unless this is attended to, the 

 antennae Avill appear to be composed of ten joints only. 



I have dedicated the first species to J. 0. Westwood, Esq., M.A., 

 F.L.S., (ke., and have adopted his views respecting the position of 

 the genus, of which, indeed, there can be no doubt. 



Sostea Westivoodii (PI. II. fig. 6.) 



S. ovata, fusco-atra, nitida, longe setosaj scutello triangularis pedibus 



rufescentibus. 

 Hab. Borneo (Sarawak). 



Ovate, shining brownish-black, covered with scattered long black 



setose hairs ; prothorax sparingly punctured ; scutellum triangular ; 



elytra strongly punctured ; legs brownish-ferruginous. Length 2 lines. 



* This plate was a first attempt at di-awing on stone. 



