OF NEW ZEALAND. 1389 



may be noticed ; the middle of each side is swollen but does not pro- 

 ject more than the thickened space near the apex. Elytra not much 

 broader than the thorax, the shoulders not oblique ; apices dehiscent, 

 the sutural gap elongate and wide, with sinuous inner borders ; on 

 each elytron there are two irregular, ill-defined costae, these do not 

 extend further back than the almost serial punctures, about two- 

 thirds of the whole length. Antenna stout, just as long as the body. 



? . Length, 3f lines ; breadth, 1 line. 



Male. Body more rufescent, more slender, humeral angles 

 rounded, legs nearly concolorous rufo-fuscous, .tenth joint of the 

 antennae reaching just beyond the extremity of the wing-cases. 



$ . Length, 2f lines ; breadth, f line. 



Ashburton. Described from a pair found by Mr. W. W. Smith on 

 Phormium tenax. The species comes near X. scissicauda and X. 

 huttoni. The latter seems to be a very variable species. 



2423. X. prolongatUS, n.s. Elongate, nearly nude ; head 

 and thorax shining, cupreo-piceous ; the antennas and femora 

 nearly rufo-castaneous, elytra rather darker, the tibiae, palpi, and 

 front of the head paler. 



Head widely depressed between the antennae. Thorax slightly 

 longer than broad, the sides a little swollen in front of the middle ; 

 there is an irregular frontal impression, near the base there are a 

 few transverse strigae, and in front of these, near each side, there 

 are two punctiforrn impressions, the surface otherwise is smooth. 

 Scutellum broad, convex, rounded behind. Elytra not much wider 

 than the thorax, much narrowed behind, apices considerably pro- 

 longed and individually rounded ; the surface is densely covered 

 with a sort of coriaceous sculpture, the coarse serial punctures end 

 near the hind thighs, the series themselves are irregular near the 

 base. Antennae, unspotted, with fine pubescence ; the ninth joint 

 attains the extremity of the body. Tibioe with yellow hairs near 

 the apices. 



Underside coppery-brown, with patches of yellow tomentum on 

 the sides of the abdominal segments. 



This species is nearly allied to Xylotoles nudus, but the elytra 

 are more depressed and differently sculptured, and their apices are 

 more produced. 



$ . Length, 4J ; breadth, 1J lines. 



Stratford, near Mount Egmont. I found one example only. 



Hybolasius (Gen., p. 609). 



2424. H. dubius, n.s. Subdepressed, clothed with decum- 

 bent yellowish and greyish pubescence, the latter most conspicuous 

 near the middle of the elytra, the legs, antennae, and elytra with 

 some long upright grey hairs. 



Thorax slightly transversal, each side with an obtuse prominence 

 behind the middle, the surface densely sculptured, a little uneven, 

 without distinct tubercular elevations. Elytra broader than the 

 thorax, the shoulders a little raised, the apices singly and rather 



