Page:Transactions NZ Institute Volume 15.djvu/82

Thorax smooth. Antennæ in male shortly ciliated. Palpi moderate, porrected, second joint triangularly scaled. Forewings with costa simple in male. Hindwings broader than forewings, cilia long. Forewings with 10 separate veins, vein 6 to costa, (normal veins 3 and 4, 7 and 8 being probably coincident). Hindwings with 7 veins, 2, 3, 4 remote at origin, short and nearly parallel, 5 and 6 rising near together, 7 free, cell long, transverse vein bent, rather outwardly oblique, (normal veins 3 and 4 coincident).

The only known genus of the group possessing only 10 veins in the forewings; and the venation of the hindwings is also peculiar. The type does not, however, appear ancestral, but rather as an eccentric development from Tortrix.

Parva, alis ant. albis, ochreis, vel rufis, fasciis duabus obliquis perfractis, maculis costæ marginisque postici septem nigrescentibus; post. griseis.

Male, female.—9½—10 mm. Head white, often suffused with ochreous or reddish-ochreous, face and a longitudinal line on crown generally remaining white. Palpi white, externally generally suffused with ochreous. Thorax varying from white to reddish-ochreous, back sometimes dark fuscous. Antennæ grey. Abdomen elongate, stout, whitish-grey or whitish. Legs white, anterior and middle pair suffused with dark fuscous except at apex of joints. Forewings very narrow, costa in male almost straight, in female slightly arched, hindmargin very oblique, nearly straight; white, grey-whitish, ochreous, or reddish-ochreous-brown, the white specimens often partially suffused with pale ochreous; markings sharply defined, dark fuscous or blackish; a narrow very oblique fascia from near base of costa to inner margin before middle, rather widely interrupted immediately below costa, broadly dilated towards inner margin; a moderate oblique fascia from before middle of costa to inner margin at ⅔, evenly broad, generally interrupted beneath costa, margins sometimes irregular; three small subquadrate equidistant inwardly oblique spots on costa between central fascia and apex, often separated by white scales, a fourth at apex, and three others on hindmargin: cilia whitish, whitish-ochreous, or grey, base barred with black and white. Hindwings fuscousgrey, darker posteriorly, thinly scaled towards base; cilia whitish or grey, with a darker basal line.

A rather handsome and very distinctly marked species, extremely variable in colour.