302 Tratisactions. — Zoology. 



Dlcrochile ovicollis, Motscliulsky, Bull. Mosc. 1864, lY., p. 316. 



By its elytra " paulo opacis," this may possibly be our D. suhopaco ; but 

 the description of the thorax cannot possibly be intended for that species 

 (" capite fere duplo latiore, ovali "). There is not the faintest approach to 

 the oval form in the thorax of D. sitbopaca. 



Ohs. Dlcrochile fahrei and D. anchomenoides, cited by authors as described 



by Guerin (Ann. Soc. Ent. Fr. 1846, Bull. p. 103), must be erased from the 



list of this genus, as the species are merely named in the place quoted, not 



described. 



Subfamily Anchomenin^e. 



Calathus zeelandicus, Redtenb. Reise No vara. Col. p. 17. 



Auckland. 



It is doubtful if this belongs really to the genus Calathus. C. ruhromar- 



ginatus, Blanch., from the Auckland Islands, is decidedly not a Calathus^ 



having, according to Chaudoir, four joints of the male anterior tarsi dilated 



and brush-like beneath. 



Platynus deplanatus. 



Anchomemis deplanatus^ White, Voy. Ereb. and Terr., p. 3, 1846. 



A. atratus, Blanch., Voy. Pole Slid. Zool. p. 21, t.l. f.l5, 1853. 



Blanchard's description is so vague that it is difficult to determine to 

 which of the New Zealand species of the same size (12 to 14 millims.) it 

 applies. Judging from the figure and the expressions " ater, obscurus " and 

 " Elytres obscures, planes," I refer to it a slender, subopaque species existing 

 in some of the London collections, and remarkable for the very sharp furrows 

 and ridges of all the tarsi, and for the uneven slightly rugose thorax, which is 

 subcordate in form, but with produced and rather acute hind angles. The 

 head and eyes are very similar in form to those of P. scrohicidatus of Europe. 

 White's description of A. deplanatus agrees pretty well with the same insect, 

 and I have little hesitation in adopting the name, although I have not seen 

 his type. 



Platynus colensonis. 



AncJiomenus colensonis, "White, I. c, p. 3. 



The type in the British Museum is a slender insect, with very elongate 

 thorax, sinuate-angustate behind, and with produced hind angles; the antennae, 

 palpi, and legs testaceous yellow. 



The size is 5 j lines ; but I refer to the same species two specimens 

 collected by Mr. Henry Edwards, 4J and 5 lines in length respectively. 



Platynus edwardsii, n. sp. 



P. clongatus, modico convexus, niger nitidus, palpis, antcnnis (articulis 



1. — 3. cxceptis) et tarsis rufo-i)iceis ; capite ovato, pone oculos subconstricto, 



supra laevi ; thoraco angusto, quadrato-cordato, post medium fortiter sinuato, 



angulis posticis producLis, ucutis ; clytiis elongato-ovatis, apice fortiter 



