138 Arthur M. Lea: 



appendages of a rather pale testaceous. Shining. Head glab- 

 rous, prothorax and elytra with short sparsely distributed setae ; 

 abdomen with rather sparse but more noticeable setae, more or 

 less confined to apex and sides of the segments. 



Head wide, somewhat flattened in middle. Eyes rather small. 

 Antennae extending almost to apex of elytra, first joint mode- 

 rately long, second to tenth subequal in length, but gradually 

 increasing in width, eleventh as long as ninth and tenth com- 

 bined, and obtusely rounded at apex. Prothorax gently convex, 

 twice as wide as long, wider than head and at base the width 

 of elytra, front angles strongly, the hind ones moderately 

 rounded, apex gently incurved to middle, base gently but dis- 

 tinctly rounded. ScutelJum transverse and distinct. Elytra 

 along middle somewhat shorter than prothorax, but longer at 

 sides, hind angles somewhat acute. Abdomen with four basal 

 segments sub-parallel and strongly margined, the others dis- 

 tinctly decreasing in width, and only the fifth with a margin 

 (which is much less distinct than on the basal ones), fourth 

 longitudinally strigose on upper surface, fifth with very distinct 

 punctures on both surfaces, sixth feebly punctate, apex semi- 

 circularly emarginate. Length 2-|, to apex of elytra Ij mm. 



Hah. — W. Australia : Bridgetown, in a nest of white ants 

 (A. M. Lea). 



A highly polished and (except for the abdomen) impunctate 

 species like the preceding, but with prothoracic margins (which 

 although slightly upturned or flattened at the hind angles, are 

 not narrowly reflexed) different, and with a distinct scutellum. 

 It possibly should have been referred to a new genus, but having 

 but one specimen I have not ventured to risk breaking it to 

 make sure of this, nor have I been able to count the tarsal 

 joints. It should, however, be readily identified amongst the 

 Australian Stapliyhinidae by its peculiar fifth abdominal seg- 

 ment. 



('ano-sD/na artirinn. Oil. 



One specimen sent by Mr. Davey as having been taken in the 

 nest of a small black ant in a log. 



Conosoiua riifxpaJye, Macl. 

 Taken by Mr. H. W. (\)x in a nest of Fonera lutea. 



