474 Mr. D. Sharp on the Elateridte of New Zealand. 



37. Chrosis elongata^ n. sp. 



C. fusca, elongata, minus parallela, evidenter laxe fusco-pubes- 

 ccns; thorace paulo longiore quam latiore, crcbre punctato; elytris 

 Icviter striatia striis punctatis, iiiterstitiis crebre subtiliter punc- 

 tatis, eloiigatis, apicibus attenxiatis ot prolongatis, angulo extemo 

 magis prominulo, minute spinoso ; prosterui lateiibus crebre 

 punctatis ; lamina coxali interne evidenter latiore, margins pos- 

 teriore supra trochanterem sat evidenter emarginato ; antennis 

 tarsisque gracilibus, elongatis. Long. 16 m. m. 



This species comes very close to extreme forms of Chrosis 

 harhata, but is more elongate in form, and has the tarsi espe- 

 cially more elongate. 



Sent from Auckland by ]\Ir. Lawson ; and also received 

 from Mr. Edwards, but without number. 



Oroup 11. — Species 34, 35, 36, and 37 exhibit the fol- 

 lowing characters : — 



Clypeus sliort, quite unfolded and extended, so that the 

 forehead is not limited at all from the clypeus in the middle, 

 and the large labrum is almost on the same level as the fore- 

 head ; antennal spaces very indistinct and very widely sepa- 

 rated from one another. Antennte with 2nd and 3rd joints 

 elongate. Prosternal process broad and stout, not curved 

 upwards behind the coxeb. Mesosternal cavity with strongly 

 elevated borders ; these attain the intercoxal sutiu'e, and their 

 hinder portions are quite horizontal. Coxal plate with tro- 

 chanteral portion a good deal longer than the femoral portion, 

 the long portion occupying about half the whole width, and 

 thence gradually narrowed till it meets the epistemum. Tarsi 

 with all the joints simple and well developed, the fourth, 

 however, a good deal shorter than the third. 



It is doubtful whether the genus Chrosis be distinct from 

 Corymhites as defined and limited by Cand^ze. Indeed our 

 European Elater impressus (Corymhites impressus, Candfeze), 

 appears more nearly allied to the New-Zealand Chrosis bar- 

 hata than it is to the Elnter avUciis and other European 

 Corymhites, 



38. Elater zealandicus, White. 



E. rouustus, niger, fusco-pubescens, sat nitidus ; antennis minus 

 elongatis, intus leviter serratis, articulo secundo brevissimo, tertio 

 sat elongate baud serrate ; prothorace crassiusculo, antrorsum 

 convexiuscule, postice latiore, angulis pesterioribus subuncatis, 

 ioi titer plicatim elevatis, margine laterali anterius a supra oc- 

 culte, crebre tequaliter punctato ; elytris striatis, striis fortiter 



