524 COLEOPTERA 



but may be at present arranged in the same genus with that species ; it 

 is of more slender and depressed form ; has the rostrum more slender 

 and the head is very much smaller, so that the smooth neck is continued 

 forwards almost directly as the rostrum ; the antennce, are more slender, 

 the joints before the club being bead-like instead of transverse; the 

 lobes of the third tarsal joint are remarkably largely developed and 

 distinct ; and the hind coxce are rather more distant ; in 6*. subcenescens 

 the antennal scrobes are remarkably well developed, and are continued 

 backwards, passing to the under-surface of the rostrum, while in S. 

 setiger they are quite small and indistinct. 



I received a specimen of this species a few months ago from Capt. 

 Broun. It was found by him at Tairua. A second individual, sent by 

 Capt. Broun at the same time, belongs doubtfully to this species ; it is 

 more rufescent in colour, and has the setae of the upper surface less 

 developed, and shows also other slight differences in sculpture and 

 structure. 



Mesoxenophasis. 



Wollaston; Cistula Entomologica, vol. I.,/. 199. 



Corpus minutum, fusiforme, angustum, nitidum, calvum, clare pal- 

 lido-castaneum ; capite sub-globoso, rostro longiusculo, graciusculo, 

 parallelo (aut postice etiam sub-graciliore), oculis parvis, demissis, superi- 

 oribus (i.e., supra haud latissime separatis) ; prothorace regulariter ovali 

 (sc. in medio rotundato, antice et postice sequaliter angustiore), convexo, 

 antice integro (nullo modo etiam obsolete constricto) ; scutello distincto, 

 rotundato ; elytris fusiformibus basi truncatis, convexis ; metasterno bre- 

 viusculo ; abdominis segm. i mo et 2 do inter se omnino suffusis (vix obso- 

 lete separatis). Antennce longiusculse, graciusculae, mox ante medium 

 rostri insertae; funiculi (5-articulati) art. 2 do sequentibus sensim longiore; 

 capitulo magno, elongate. Pedes longiusculi, crassiusculi ; tarsis art. 

 jmo vj x elongato, 3 tio multo latiore et profunde bilobo. 



A Mesoxenus (i.e., Amaurorrhinus), et phasis, aspectus. 



OBS. Genus corpore fusiformi calvo, rostro graciusculo, oculis sub- 

 approximatis, antennis longiusculis sub-gracilibus,tarsorumque art. 3 tio pro- 

 funde bilobo Microtribo (Novae Zealandiae) simillimum ; sed scutello 

 conspicuo (nee obsoleto), oculis omnino demissis ac minus grosse gran- 

 ulatis, prothorace antice nullo modo constricto, funiculo minus laxo, 

 capitulo minus abrupto, coloreque pallido, inter alia, facile distinguitur. 

 A Stricotrogo differt corpore calvo et magis fusiformi, rostro antennisque 

 gracilioribus, oculis sub-approximatis demissis (nee late separatis promi- 

 nentibus), prothoraceque integro. 



The position of the present curious genus, which is founded upon a 

 minute Cossonid detected by Captain Broun in New Zealand, and 

 recently communicated to me by Dr. Sharp, appears to be amongst 

 those particular types of the Pentarthrides in which the eyes and scutel- 

 lum are developed, and the body is free from every trace of pubescence ; 

 for although Sericotrogus is the form near which I should be inclined to 

 place it, I may add that the coarse decumbent fulvescent hairs with 



