380 ON THE CARENIDES (FAM. CARABID^E), No. IV., 



I.e., p. 177; C '. subquadratum, Macl., I.e., p. 177; C. striato-punctu- 

 latum, Macl., I.e., p. 178; C. ignotum, SI., P.L.S.N.S.W. 1891, 

 (2), vi. p. 427. 



Most of the synonymy given above has already been published 

 by me (P.L.S.N.S.W. 1897, xxii. p 211), and I have now to add 

 C. ambiguum, Macl., after examination of the type. C. ignotum, 

 SI., is, from comparison of types, conspecific with C. ambiguum. 

 After seeing the type of C. subquadratum, Macl., I can find no 

 decided difference, beyond its somewhat more depressed form, 

 between it and C. scaritioides, Westw., of which I regard it as a 

 synonym. 



Carenum regulars, n.sp. 



^. Elongate, robust, parallel; head large, deeply bisulcate, 

 lightly constricted behind eyes; prothorax a little broader than 

 long, subparallel on sides, obliquely angustate to base; elytra 

 twice as long as broad, subdepressed, strongly declivous on sides 

 and apex, quadripunctate, border thickened and upturned at 

 humeral angles, inflexed margin very narrow behind first ventral 

 segment; anterior tibiae bidentate. Under surface, legs, head 

 (generally), and disc of prothorax black, some greenish reflections 

 on sides of occiput, below eyes and on sides of prosternum : 

 margins of prothorax viridescent; elytra purple-black, violaceous 

 on lateral declivities, marginal channel viridescent, inflexed 

 margins with faint purple and greenish reflections. 



Head large (5'3x(r5 mm.), convex, declivous to anterior 

 margin; frontal sulci divergent and very deep posteriorly: frontal 

 spaces convex, posterior margin of middle space declivous and 

 filling all the interval between extremities of frontal sulci: 

 clvpeus with median part truncate, intermediate angles short, 

 prominent, triangular ; preocular sulcus lightly impressed, 

 extending backwards above eyes; preocular process slightly pro- 

 tuberant; eyes deeply enclosed in orbits, convex, rather pro- 

 minent; orbits narrow behind eyes, as prominent as eyes, sloping 

 sharply to head; two supraorbital punctures on each side; sub- 

 orbital channel divided by a strong oblique, elongate ridge; sub- 



