Austral id II <iii<l Tasmd ii la n Colcopicra. 143 



Head with a laiiie ol)tuse seiui-doul)le tubercle in middle of 

 base, a flattened rid^e above each eye, the two ridges with their 

 apices finely connected across middle of head. First joint of 

 antennae about as long as second and third combined, second 

 about as long as wide, the others feebly increasing in width and 

 becoming more transverse, so that the tenth is more than twice 

 as wide as long, eleventh briefly ovate. Prothorax not twice 

 as wide as long, margins thin, flat and rounded, front angles 

 somewhat acute and slightly produced, extreme base almost 

 rectangular and the width of apex ; with a Strong narrow carina 

 somewhat closer to each side than middle ; with a shallow but 

 distinct median line. Scutellum distinct, apex rounded. Elytra 

 slightly wider and longer than prothorax ; obtusely elevated on 

 each side of suture, with two strong costae on each side, one 

 forming the margin, the other close to it, the two conjoined on 

 shoulder. Abdomen with segments gradually decreasing in 

 width, closely applied together and elliptic in section. Coxae 

 comparatively small, front and hind pair touching, middle pair 

 almost touching ; femora tibiae and tarsi thin. Length "2\, to 

 apex of elytra 1 mm. 



Hah. — N.S. Wales : Liverpool (R. L. King), Sydney, in nests 

 of Iridomyrmev nitidus^ (H. W. Cox) ; Victoria : Birchip and 

 Sea Lake, in nests of same ant (J. C G-oudie). 



Under a Coddington lens the whole of the upper surface 

 appears impunctate. From each side there appear to be two 

 strong costae at the side of the head, prothorax and elytra. 

 From some directions the cephalic tubercle appeal's to be single, 

 but fi-oiu behind it is seen, quite distinctly, to be double. 



I refer this species with some doubt to Glyptoiiia, as although 

 the tarsi appear to be three-jointed, it is not at all sure that 

 there is not a small hidden basal joint. Tlie strongly costate 

 upper surface, however, seems out of place in any other genus 

 than Glyptoma (unless a new genus should be erected for the 

 species) the limits of which (as it occurs in other parts of the 

 world) I am by no means sure of. The eyes, although very 

 convex, are quite invisible from above from certain directions. 

 The antennae and legs are apparently as in mxjrmecophilum, 

 but the abdomen is verj- different. 



1 Mr. Cox has also recently taken it in a nest of E'ctatoinma metallicum. 



