26 IJ"!^' 



Pkostomis Atkixsoni, sp. n. 

 Statura P. mandibularis, at major, rufo-piceus, depressus, iiitldus ; an- 

 tennat-um articuJo tertio sat elonrjato ; capite thoraceque puree suhtiUter 

 punctidato, his lateribus vlx areuatis, elytris striato-punctatis, strlis haud 

 basin vel apicem attingeniibus. Long. 4 lin. 



This species is separated from P. mandibularis by its mueh larger size, by the 

 much less distinct punctuation, &c. ; and from P. morsitans by the much less strong 

 punctuation, and by the sides of the thorax being less straight. The third joint of 

 the antenna is rather elongate, about one-third longer than the preceding. Mandi- 

 bles very large, strongly angular on the outside in the middle, sparingly and finely 

 punctured. Head sparingly punctured on the sides and in the posterior transverse 

 channel. Thorax sub-quadrate, very smooth, sparingly and delicately punctured, 

 •with scarcely any trace of mesial line. Elytra at their base a little broader than the 

 thorax, narrowed posteriorly, with lines of not deeply impressed punctures, the lines 

 not reaching the base or apex. Lateral spurs of the jugula approximate towards 

 their apex, somewhat sinuous. 



The female differs from the male in having the mandibles simply arched at the 

 sides, and thickly and distinctly punctured, and the sculpturing throughout more 

 distinct ; the thorax also is distinctly constricted behind the anterior angles. 



Sah. : Tasmauia (E. D. Atkinson, Esq.). 



Peostomis coexl'tus, sp. n. 

 Statura P. mandibularis ; rufo-testaceus, nitidus ; jwjulce calcaribus 

 lateralibus antice haud approximatis, deswper apparentibus ; fronte antice 

 foveola impressd; elytris evidenter punctato-striatis. Long., 3 lin. 



Form, colour, and appearance of P. mandibular is, but at once distinguished 

 from it and the other species of the genus by the lateral spines of the jugula being 

 at right angles to the base, not approximate at their apices, so that they are distinctly 

 visible from above. The thorax has a shallow fovea on each side, a little before 

 the middle. 



JIab. : S. Australia. 



BESSAPHILUS, gen. nov. 



General form and appearance of Prostomis, but with the head 

 formed somewhat as in Cueujus. 



xlntennae as in Prostomis mandibularis. Clypeus marked off from 

 the forehead by a deep channel, narrowed anteriorly, truncate in 

 front. Lateral lobes of the jugula short, somewhat acute ; mandibles 

 small, much curved, bifid at the apex ; apical joint of the maxillary 

 palpi slightly fusiform, as long as the two preceding joints taken 

 together. Prosternum very broad and flat, joined to the flanks 

 behind the coxae, as in Prostomis. Metasternum very long. Tarsi as 

 in Prostomis, with only four visible join^. 



