148. Artlinr M. Leo: 



Batrixodcs luyrmeco'philus, n.sp. 



<?. Reddish-cast.meous. Clothed with fine, pale, sub- 

 depressed pubescence. 



Head with a deep impression on each side, curved . round 

 and joined together in front so as to be shaped like an H, the 

 apices subfoveate, the enclosed space rather strongly convex, 

 and with a feeble median impression ; with dense and fairly- 

 distinct punctures. Antennae extending to middle coxae, first 

 joint slightly longer than second, the others to eighth very 

 slightly shorter and narrower than ninth, this the length of 

 but slightly narrower than tenth, eleventh briefly ovate, about 

 half as long again as tenth. Prothorax slightly longer than 

 wide, widest across middle, thence regularly decreasing to apex 

 and irregularly to base ; with a distinct median line not quite 

 extending to apex, and terminated near base in a fovea ; basal 

 half irregular ; punctures as on head. Elytra very little wider 

 than long, shoulders obtusely dentate ; each with a narrow 

 sutural stria, and a lightly curved discal one, which, however, 

 is not continued beyond the middle ; punctures at base as on 

 prothorax, but smaller elsewhere. Abdomen with dense and 

 fairly distinct punctures ; on each side of upper surface of three 

 segments with a fine impressed line, under surface somewhat 

 flattened along middle. Metastei-nuni with a wide shallow im- 

 pression. Legs rather long ; hind trochanters each with a 

 strong curved tooth, the median pair indistinctly dentate ; 

 femora rather stout ; tibiae distinctly curved. Length 2|^ mm. 



Hah. — Victoria : Sea Lake, in a nest of Ponera lufea (J. C. 

 Goudie). 



The absence of a cephalic carina and the structure of the 

 head generally will readily distinguish from most species of 

 the genus. In general appearance it is somewhat like ha mat us. 

 The base of the prothorax appears to consist of two lobes,, 

 with their convex ends in front, and at the side each appears 

 from some directions to be dentate, but this is due principally 

 to a deep medio-lateral impression ; this impression is con- 

 tinued, with interruptions, to the base, and from some direc- 

 tions can be vaguely traced to the apex. 



A specimen from Sydney, taken in a nest of the same sjDecies 

 of ant, appears to be the female ; it differs in being slightly 



