Go to National Library of New Zealand Te Puna Mātauranga o Aotearoa
Volume 43, 1910
This text is also available in PDF
(2 MB) Opens in new window
– 77 –


Decadarchis hemiclistra n. sp.

♂. 15–17 mm., ♀ 22 mm. Head and thorax ochreous-whitish, sometimes brownish-tinged, hairs of forehead sometimes mixed with dark fuscous. Palpi whitish, second joint suffused externally with dark fuscous, beneath with whitish projecting scales increasing to apex, terminal joint moderate, slender, with appressed scales. Antennae fuscous-whitish. Abdomen whitish-fuscous. Forewings elongate, narrow, costa moderately arched, apex round-pointed, termen slightly sinuate, extremely oblique; ochreous-white, on dorsal half and towards apex in ♂ tinged with brownish, in ♀ more strongly infuscated, with variable scattered dark-fuscous and black scales, especially in ♀; a dark-fuscous streak along costa from base to middle, posteriorly dilated and truncate; an elongate suffused dark-fuscous mark beneath costa about ⅔; a blackish-fuscous streak from ⅔ of disc to apex, interrupted before apex, edged above with an ochreous-whitish line: cilia ochreous-whitish, with more or less marked dark-fuscous post-median line, at apex with a blackish bar, round apex with a blackish-fuscous subbasal shade. Hindwings in ♂ whitish-grey, in ♀ light grey; cilia ochreous-whitish.

Wellington, in December (Hudson); reared from larvae and pupae in flower-stems of toetoe (Arundo conspicua), at Makara, emerging in November

– 78 –

and February (Sunley). The larval habits is very interesting. The natural food of species of this group of genera appears to be dead woody fibre.

Tinea dicharacta Meyr.

Tinea dicharacta Meyr., Proc. Linn. Soc. N.S.W., 1892, p. 536.

♀. 10 mm. (Australian ♂ 6 mm.). Head pale ochreous. Thorax dark fuscous. Forewings dark fuscous, with four fasciae represented principally by groups of two or three white strigulae each, indistinctly connected by glossy purplish-leaden striation, last supapical. Hindwings dark purplish-fuscous.

Wellington, in November (Hudson); one specimen. Described originally from one specimen, taken at Sydney, New South Wales, in November, which has hitherto remained unique. The species is a very distinct one, and its identity is undoubted. Mr. Hudson has another specimen, but regards the species as very rare; it is probably semi-domestic in habits