302 Transactions. — Zoology. 



Dicrochile ovicottis, Motschulsky, Bull. Mosc. 1864, IV., p. 316. 



By its elytra " paulo opacis," this may possibly be our B. subopaco ; 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. subopaca. 



Obs. Dicrochile fabrei and D. anchomenoides, cited by authors as described 

 by Gugrin (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 Anchomeniioe. 

 Calathus zeelandicus, Kedtenb. Reise Novara, Col. p. 1 7. 



Auckland. 



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

 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. 



Anchomenus deplanatus, White, Voy. Ereb. and Terr., p. 3, 1846. 

 A. atratus, Blanch., Voy. Pole Sud. Zool. p. 21, t.l. f.15, 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. scrobiculatus 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 



typ 



Platynus colensonis. 



White 



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



nn 



palpi, and legs testaceous yellow. 



The 



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

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



Platynus edwardsii, n. sp. 



P. elongatus, modice convexus, niger nitidus, palpis, antennis (articulis 



1 .— 3. exceptis) et tarsis rufo-piceis ; capite ovato, pone oculos subconstricto, 



supra lsevi ; thorace angusto, quadrato-cordato, post medium fortiter sinuato, 



augulis posticis productis, acutis ; elytris elongato-ovatis, apice fortiter 



