404 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



to me ; Ijut its head is larger than in that species, and its 

 prothorax more elongate ; while the emarginate base of the elytra 

 gives that part of the body a very different appearance from what 

 it has in C. quadripunctatum, which has the elytra almost quite 

 oval, the base being shortly truncate behind the peduncle ; the 

 legs are as in C. quadripunctatum. It is probably also allied 

 to C. viridissinium, MacL, but is a much heavier and more robust 

 insect. 



B E M B I D I I N I . 



Bembidium mastersi,* n.sp. 



Narrow, elongate, lightly convex ; mandibles long, acute, 

 decussating ; prothorax subcordate ; elytra strongly and evenly 

 striate, the striae simple, third interstice bipunctate. 



Head and prothorax blackish-green, shining ; elytra testaceous, 

 the basal half of the first interstice, and a spot of varying width 

 and size on the disc of each elytron situated between the punc- 

 tures of the third interstice, of a dark hue with greenish reflec- 

 tions ; legs and antenna; testaceous. Head large, ver}^ finely 

 shagreened ; front depressed, somewhat rugulose, impressed on 

 each side ; the impi-essions extending forward to anterior margin 

 of clypeus, their course sub-parallel, a little sinuous ; clypeus 

 transverse, anterior margin truncate. Penultimate joint of max- 

 illary palpi elongate, incrassate. Antennae long, rather slender, 

 lightly incrassate. Prothorax very little wider than head with 

 eyes (1-1 x 1-4 mm.), subcordate, convex, declivous posteriorly, 

 evidently narrower across base than across apex, finely shagreened 

 towards sides, smooth on disc ; sides lightly rounded on anterior 

 part, very little narrowed to anterior angles, strongly sinuate 

 posteriorly and meeting the base at right angles ; anterior margin 

 very lightly emarginate ; base rather roundly truncate ; anterior 

 angles prominent, rather advanced ; basal angles sub-rectangular, 

 not prominent or acute ; lateral border narrow, reflexed ; a short 



* While this paper has been passing through the press I have noticed a 

 reference in Trans. Ent. Soc. N.S.W., I., p. xvii, probably relating to this 

 species, and if so, showing that as long ago as 1863 Sir William Macleay 

 had collected it and intended to name it B. Jlavesctns. 



