Page:Transactions NZ Institute Volume 15.djvu/55

Antennæ fuscous-grey. Thorax greyish-fuscous. Abdomen whitish-ochreous. Legs whitish-ochreous, anterior and middle pair suffused with greyish-fuscous. Forewings moderate, somewhat dilated posteriorly, costa moderately arched, hardly sinuate, apex rounded-acute, hindmargin oblique, straight or slightly sinuate; rather light ochreous-grey-brown, costal half suffused with dark fuscous; more or less irregularly irrorated with white on costal half, and towards base and hindmargin; a narrow irregular suffused white streak above middle from base to disc before middle, posteriorly obliquely truncate, sometimes almost interrupted at ¼; a rather broad irregular suffused often nearly obsolete white transverse line from middle of costa to before middle of inner margin, passing through extremity of streak from base; an elongate-oval longitudinal white spot in middle of disc, almost connected with basal streak; above and rather beyond this the obsolescence of the white irroration causes a dark blotch on costa; a broad suffused white closely dentate transverse line from costa at ¾ to inner margin at ⅘, anteriorly finely edged with dark fuscous, somewhat bent inwards beneath costa and angulated outwards above middle; a suffused white somewhat triangular blotch on hindmargin immediately beneath apex, margined above by a dark spot, and suffusedly and indistinctly produced downwards towards anal angle; lower veins towards hindmargin indistinctly dark fuscous; four minute black dots on lower part of hindmargin; a slender dark fuscous hindmarginal line: cilia whitish-grey, somewhat mixed or very indistinctly barred with white, with a slender white basal line on upper half, produced into an apical bar. Hindwings whitish-grey-ochreous, hind margin narrowly suffused with light fuscous-grey; cilia whitish-ochreous, with a faint grey line near base.

Allied to C. flexuosellus, but differing widely in the white irroration and transverse lines, and the absence of a complete white longitudinal streak.

Common on the hills near Christchurch; also taken at Wellington, on the Kaikoura range, and in the Rakaia district; in February and March.

Felder's and Butler's figures are about equally poor, but can hardly refer to any other insect.

Male, female.—20–25 mm. Head, palpi, and thorax whitish, coarsely irrorated with fuscous-grey; labial palpi long. Antennæ dark fuscous. Abdomen whitish-ochreous. Legs dark grey, middle tibiæ with some white scales and a white apical ring, posterior tibiæ white with a few grey scales, middle and posterior tarsi with white rings at apex of joints. Forewings rather narrow, more or less distinctly dilated posteriorly, costa gently arched, apex almost acute, hindmargin gently rounded, rather strongly