Coleoptera of New Zealand, 239 



Platynus deplanatus. 



Anchomenus deplanatus, "White, Vov. Erebus and Terror, p. 3 (1846). 

 A, ntratm, Blanch. Yoy. Pole Sud,"Zool. iv. p. 21, t. 1. f. 15 (1853). 



Blanchard's description is so vague that it is difficult to de- 

 termine to which of the Xew-Zealand species of the same size 

 (12 to 14 milHms.) 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 fuiTOws 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. scroMculatus of Europe. 

 White's description of A. dejylanatus agrees pretty well with 

 the same insect ; and I have little hesitation in adopting the 

 name, although I liave not seen his type. 



Platynus Colensonis. 



Anchomemis Colensonis, White, /. c. p. 3. 



The t}"]ie in the British Museum is a slender insect, with 

 very elongate thorax, sinuate-augustate behind, and with pro- 

 duced hind angles ; the antenna, palpi, and legs testaceous 

 yellow. 



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

 specimens collected by Mr. Henry Edwards, 4| and 5 lines in 

 length respectively. 



Platynus Edicardsii, n. sp. 



P. elongatus, modice convexus, niger nitidus, palpis, antennis (ar- 

 ticulis 1.-3. exceptis) et tarsis rufo-piceis ; capite ovato, pone 

 oculos subeonstricto, supra Isevi ; thorace angusto, (juadrato-cor- 

 dato, post medium fortiter sinuate, angulis posticis productis, 

 acutis ; elj'tris elongato-ovatis, apice fortiter sinuatis, convexis, 

 profunde subpunctulato-striatis, interstitio tertio tripunctato. 

 Long 5-5 g hn. c? $ . 



Allied to P. Colensonis J especially in the form of the thorax, 

 with produced acute hind angles, but legs constantly pitchy 

 black ; palpi and antennas dull pitchy red, with the greater 

 part of the three basal joints of the latter black. The thorax, 

 as in P. deplanatus and P. Colensonis^ has a deep central 

 groove, and on each side a curved, shalloAv, impressed line 

 proceeding from the basal fovea and nearly reaching the ante- 

 rior angles. The lateral explanated margin is narrow and re- 

 flexed. All the tarsi (except the dilated joints of the male) are 

 sharply ridged and grooved, as in P. deplanatus. 



17* 



