OF NEW ZEALAND. 525 



which that singular little insect is sparingly clothed is altogether excep- 

 tional in the groups with which it is associated. Were it not, however, 

 for the existence of a scutellum I would rather have put Mesoxenophasis 

 alongside Microtribus, which is equally peculiar (like Sericotrogus) to 

 New Zealand, and with which, in its exceedingly fusiform, medially- 

 divided outline, comparatively slender rostrum and antennae, sub- 

 approximated eyes, and bald surface, it better agrees ; nevertheless, the 

 total want of a scutellum in that genus throws it in reality into a 

 different section of the sub-family. 



In its minute size and pallid hue, as well as in its very oval, ante- 

 riorily imconstricted prothorax, and in the fact of its first and second 

 abdominal segments being completely suffused inter se, Mesoxenophasis 

 (which, prima facie, has much the appearance of a very diminutive 

 Amaurorrhinus, or Mesoxenus] presents a combination of characters 

 which will still further tend to separate it from its immediate allies. 



935. M. brouni, Wollaston\ Cistula Entomologica, vol. i., p. 200. 

 M. fusiformis, angustus, nitidus, calvus, clare pallido-castaneus ; rostra 

 (sub-gracili, sub-parallelo) parce sed distincte punctulato; capite convexo 

 et antice minute foveolato ; prothorace regulariter ovali (in medio sc. 

 rotundato, antice et postice sequaliter angustiore), convexo, antice trun- 

 cate et integro (nullo modo constricto), ubique parce et leviter punctu- 

 lato ; elytris ellipticis, convexis, grosse substriato-punctatis ; antennis 

 pedibusque vix obscurioribus, illarum capitulo sensim nigrescentiore. 

 Subtus parcissime punctatus (punctis maximis in sternis sed in abdomine 

 minutissimis, fere obsoletis). 



Long, corp., lin. i-J-iJ. 



In honorem Dom. Broun, scientise naturalis in Nova Zealandia in- 

 vestigatoris, hanc speciem inter Cossonidas valde distinctam nuncupavi. 



Canthorhynclms. 



Nov. gen. 



Body elongate, not very narrow, sub-depressed, pilose. Rostrum 

 elongate, slender, cylindrical, arcuated, and rather longer than the pro- 

 thorax ; its scrobes well-marked, beginning just in front of the middle 

 and prolonged to the eyes. Head sub-globular, constricted just behind 

 the eyes so as to form a broad neck. Eyes moderate, prominent, ovate, 

 placed laterally near the base of the snout. Antenna long and slender; 

 the scape attaining the eye, slightly flexuous, and a little incrassated 

 apically ; funiculus as long as the scape, the first joint elongate-obconi- 

 cal, the second longer than first, the third about equal to the first in 

 length, the fourth and fifth decrease in length, obconical ; club large, 

 ovate, articulate. 



Prothorax longer than broad, about as wide as the elytra, widest 

 near the middle, moderately narrowed behind, more so in front where 

 it is constricted, apex truncate, base bisinuated. Scutellum distinct, 

 transversal. Elytra elongate, sub-parallel, a little narrowed and rounded 

 posteriorly. 



