844 COLEOPTERA 



and brown ; femora fuscous ; tibiae (except a basal and median infus- 

 cate bands), tarsi, and antennae pale-fiavous, these last with the three 

 terminal pubescent joints and the tips of joints 2-8 brownish, the 

 basal one blackish, tarsi similarly marked ; labrum yellowish. 



Head a little uneven, with a depression between the antennal 

 orbits, punctate ; epistome and labrum smooth. Prothorax quadran- 

 gular, somewhat broader than long, finely margined, rather flat, 

 without projecting angles, widest in front, nearly straight behind ; 

 its surface rather flat and uneven, with two pairs of slight obtuse 

 basal elevations situated midway between the middle and sides, its 

 punctation moderately close and irregular. Scutcllum finely punc- 

 tured. Elytra uneven, nearly plane above, sides straight to beyond 

 the middle, dilated near hind thighs, suddenly curvedly narrowed 

 behind ; their punctation neither close nor coarse ; each bears a 

 large compressed ante-apical protuberance, and three more or less 

 perceptible elevations behind the middle. The body is sparsely 

 clothed with fine yellowish hairs. Antennae and legs pubescent. 

 Underside fuscous, punctate, pubescent. Metasternum grooved 

 behind. 



Length, 3} lines ; breadth, i J. 



Mr. W. D. Campbell, of Ponsonby, discovered one example on 

 the Patetere plateau. 



Ctenoplectron (p. 400). 



1500. P. vittatum, ^-s. Lanceolate, narrow ; slightly shining, 

 pitchy-brown, palpi yellow; the two basal articulations of the 

 antennae and the apical one of the tarsi infuscate ; the elytra with 

 two elongate basal vittae fulvous, and an ante-apical fascia pallid. 



Head closely reticulately sculptured. Prothorax sub-conical, 

 somewhat rounded laterally, widely bisinuate at base ; its sculpture 

 like that of the head but finer, canaliculate, with two small basal 

 depressions, covered with somewhat deciduous, depressed yellow 

 hairs. Elytra elongate, attenuated posteriorly, apices acutely 

 rounded, leaving a sutural gap ; finely reticulated, the lateral and 

 sutural margins coarsely ciliated, each with three costae, most obvious 

 behind, the outermost quite lateral and least distinct ; they are 

 clothed with cinerous pubescence. Legs normal, elongate. 



Length, 3 lines ; breadth, f . 



I found two, one mutilated, on the Waitakerei Range. 



Allopterus (Pt. m., p. 790). 



1501. A. instabilis, n.s. Variegate, ground-colour smoky- 

 brown inclining to black ; the dorsum and base of thorax, the base 

 and portions of the elytra, rufescent ; palpi pale-flavous, legs pale- 

 testaceous sometimes marked with brown; the tarsi and basal 

 joints of antennae infuscate, the remaining articulations of these 

 latter blackish ; each elytron with a short humeral vitta, widest 

 behind, a sutural one near the middle, and a very irregularly-formed 

 fascia behind, yellowish ; a lateral spot just before the hind thigh, 

 of a reddish colour, may also be noticed. 



