45 



pared with JB. MannerTieimi, Satlb., of that group, besides the- 

 difference already named, it is more elongate and parallel, not 

 so shining, has no keel within the posterior angles of the 

 thorax, and the punctures in the striae of the elytra are very 

 much finer. The testaceous markings on the elytra consist 

 of two somewhat crescent-shaped spots connected on the 

 margin, the front of the anterior one being at a distance of 

 about a quarter of the elytron from the apex, and the hinder one 

 extending to the apex ; in strongly-marked specimens the 

 hinder is curved up the suture, and the anterior is curved 

 almost to meet it, a dark portion being enclosed, so that the 

 whole resembles an ocellus ; in some specimens, however, these 

 markings are very obscure indeed. 



This is a common insect on the margins of fresh-water nools, 

 rivers, &c. I have it from the Port Lincoln district, and from 

 various places near Adelaide, but not from the interior, though 

 probably it will be found there. Mr. Pulleine informs me thlit 

 he has taken it actually under water. 



STAPHYLINID^. 

 ALEOCHAEA. 



A. pelagi, sp. noy. Mtida ; nigra ; elytris pedibusque obscure 

 piceis ; capite rotundato prothorace multo angustiore 

 antice sub-triangulariter deplanato, confuse profunde 

 sparsim punctato ; antennis prothoracis basin hand 

 attingentibus, articubs 5-10 fortiter transversis, 11° conico 

 10° plus duplo longiore; prothorace transverso antice an- 

 gustato postice rotundato ad latera sparsim fortiter sub- 

 seriatim panctulato, disco profunde biseriatim foveolato, 

 spatio inlermedio lato ; elytris prothorace vix longioribus, 

 parce fortiter apice marginibusque densius subtiliusque 

 puuctulatis spatio discoidale sat lato humeris lineaque 

 subhumerali Isevibus ; abdominis seginentis 1-4 sub- 

 Isevibus, 5-7 fortius sat crebre punctulatis. Long., 4 mm. 

 This species is closely allied to A. s'peculifera, Er., from which 

 it differs inter alia as follows : — The lateral punctures of the 

 thorax are very much less numerous, consisting chiefly of a 

 well-defined row near the margin, and the discal series are not 

 placed in striae, but consist each of about three very large 

 f ovese, the space between the series being very wide ; on the 

 elytra the apical and marginal punctures are much less con- 

 fused, and the discal puncturation is stronger and more dis- 

 tinct ; the basal three segments of the hind body have only a 

 few obscure punctures which are near the margins, while on 

 the fourth segment the lateral punctures are very little more 

 noticeable, and a narrow punctured space crosses the base. 



This insect occurs rarely under decaying seaweed near Port 

 Lincoln. 



