I took four specimens at Dunedin at light in January; Mr. R. W. Fereday has met with it at Christchurch and Lake Wakatipu in the same month. 5. Dipt. leucoxantha, n. sp. Female.—19 mm. Head and thorax light orange-ochreous. Palpi ochreous-orange, base, apex and upper surface mixed with dark fuscous. Antennæ whitish-ochreous. Abdomen ochreous-whitish, posteriorly suffused with grey. Legs whitish-ochreous. Forewings triangular, very broad posteriorly, costa very gently arched, apex rounded, hindmargin oblique, sinuations moderate; light ochreous-orange, becoming deeper orange posteriorly, especially towards apex; transverse lines obsolete, second faintly perceptible, slightly darker, sinuate and outwards-curved, from about ¾ of costa to ⅘ of inner margin; a comparatively rather large oval snow-white spot in disc beyond middle, suffusedly margined with dark fuscous, anterior extremity produced upwards into a blunt tooth; a transverse series of eight very short slender longitudinal leaden-metallic streaks on second line, second and third from costa considerably longer than the rest: cilia ochreous-white, with a dark grey spot at apex and another at anal angle, and a deep grey brassy-metallic basal line. Hindwings white, towards hindmargin faintly yellowish-tinged; cilia white. A very beautiful and distinct species, resembling D. lepidella in the character of the discal spot, but differing from all in the orange forewings; the clear white hindwings, and absence of the black hindmarginal spots are also reliable points; the obsolescence of the transverse lines is perhaps not constant. One perfect specimen taken by Mr. R. W. Fereday near Lake Wakatipu in January. 6. Dipt. metallifera, Butl. (Eromene metallifera, Butl., Proc. Zool. Soc., Lond., 1877, 401, P1. XLIII., 11.) “19 mm. Allied to D. auriscriptella, but forewings rather brighter in colour, the transverse lines only half as wide apart, the silver discal spot less curved and edged with brown; a series of longitudinal discal silver lines between the veins; hindwings white.” I saw Butler's type in the British Museum and noted it as a distinct species, but have been unable to obtain a specimen for description. The above is the only description that Butler gives, (I have taken the liberty of altering his terminology), and I consider it hardly accurate. The transverse lines are represented in the figure as in their usual position, and it may be conjectured that Butler has mistaken a central suffused line, which is also represented on dorsal half, for one of the usual two transverse