OF NEW ZEALAND. 1001 



mentum and lignla are of ordinary Pterostichoid form, the former 

 with a strong tooth m the middle, the hitter shghtly acuminate in 

 the middle, with small paraglossa projecting heyond it on each side. 

 The second joint of the lahial palpus is very feebly bisetose, the 

 termiiial joint about as long as the second ; rather slender acuniinate. 

 The maxillarji lobes are not very long, and are of very ordinary 

 form ; the corresponding palpi are not stout ; the second and third 

 joints subequal in length ; the third broadest at its apex, where it 

 is rather closely connected with the terminal joint, which is slender 

 and acuminate, scarcely so long as the third joint. The mandibles 

 are short, and the right one is very obviously armed with a single 

 tooth in the middle, and there is a feeble external seta. The 

 lahrum is transverse, with straight front margin, bearing six setae. 

 The thorax is well margined at the sides, and is destitute of tactile 

 sette. The scutellum is visible, and its broad short extremity 

 penetrates between the basal margins of the wing-cases. The elytra 

 have no erect sette, and no larger lateral punctures, except that near 

 the base there are close to the side margin three or four feeble 

 punctures bearing very feeble setas. The elytra are not in the least 

 truncate, only feebly sinuate near the extremity, and at the point of 

 sinuation the thin edge is traversed by an oblique groove. There 

 are no wings, but the elytra are not soldered. The prosternal process 

 is short and bent upwards. The mesosternal cpimera are quite 

 slender, well separated from the coxal cavities ; the metasternum 

 small, with short, broad episterna ; the hind coxas contiguous ; the 

 ambulatorial seta? of the ventral segments feeble. 



It will be seen from the above characters that this insect departs 

 from the Ptcrosticliini by the important characters of the form and 

 condition of the male tarsi, and by there being but one orbital seta. 

 I have not yet alluded to the condition of the antenuf?, hecuwse these 

 are in a singularly doubtful condition as to the pubescence of the 

 basal joints : the first is free from pubescence ; the rather elongate 

 second joint is scantily pubescent on the apical part ; the third joint 

 is very elongate, and is glabrous at the base, pubescent elsewhere, 

 the following joints being closely pubescent ; thus the second and 

 third joints show a gradual transition from the glabrous to the 

 pubescent condition. The form of the male tarsus is an affinity with 

 Pogonus. The position in the New Zealand catalogue will be 

 between the Pferostichini and IlarpaVml. It should be remarked 

 that in this genus the mandibular scto is of little importance ; always 

 very feeble, it appears to be occasionally entirely absent from one or 

 the other mandible. 



1795. Z. helmsi, "••'•■ (Sharp; Trans. Iioy. Dub. Soc, 1886, 

 p. 372.) Piaeo-castaneus, antennis rufis, pedibus castaneis ; pro- 

 thorace anterius fortiter rotundato, basi truncato, ante basin punc- 

 tato, utrinque prope latus argute plicato ; elytris profunde striatis, 

 utrinque versus apicem plica elevata, interstitio tertio obsolete tii- 

 punctato. 



Long., 8mm. 



