[Pkoc. Koy. Soc. Victoria. 26 (N.S.). Pt. IT.. lOU^. Airr. XV \. — On Aa.sfraliai) and Tasmanian Coleoptera, with Deso-i'pfioois of Neiv Species. Part II. ] By AHTHITK M. LEA. (With Plate XXII.). [Read JIth September, 1913]. Carabidak. Xanfhuj^hafn. I have not seen a I'ecord as to species of this genus bombarding, but some of them ceitainly do. This first eanie undei' my notice A\ith X. a/if/usfii/a. whicii discharges a small, vague cloud, usually of semidunai' shape, extending to about two inrhes from its body. It appeai-s to be discliarged outwards and upwards, l)ut occasionally forwards. The amount of vapour is small, and must usually' escape olxservation, but, when about to pick up the beetle, the vapour, if Avatched for, can be seen in almost every instance. Only one dis-charge appears to be made, and it is not accompanied by sound. Dytiscidae. Necferosoma cosfipenne. Lea. The late Rev. T. Blackburn^ says, " This insect is no doubt iden-tical with H. penicillatus Clark." This may possibly be the case, but, if so, it is singular how decidedly (and, between individuals, so uniformly) carinate the Tasmanian specimens are. (Since describ-ing cosfipenne, I have seen hundreds of specimens). Clark saya of penicillntvDi, " On either side of the suture an obsolete carina-tion, plainly perceptible when the insect is viewed fi-om in front." In examining cosfipenne from tlie front, the elytra appear to be feebly concave in tlie middle, with the earinae less distinct than from any other direction ; in fact, from above, they arc most dis-tinct (especially along the middle); the woid " ol)solete " would certainly be misleading applied to all the Tasmanian specimens I 1. Part I. in Proe. Roy. Soc. Victoria, vol. xxii. (n.s.), p. 113, 1009. 2. Trans. Rov. Soc. S. Aiist., 1001, p. IS.''..