The perfect insect appears in November and December. It is rather a scarce species.
LEUCANIA SULCANA, Fereday.
(Leucania sulcana, Frdy., Trans. N. Z. Inst. xii. 267, pl. ix.; Meyr., Trans. N. Z. Inst. xix. 11.)
(Plate [IV]., fig. 19 ♂, 20 ♀.)
This species has occurred at Akaroa and at Dunedin.
The expansion of the wings is from 1½ to 1¾ inches. The fore-wings are light ochreous with the veins white; there is a shaded, brownish, longitudinal streak near the apex, another from the end of the cell to the termen, a stronger streak from the base of the wing to near the tornus, and another along the dorsum; there is a minute black dot near the base above the middle, a slightly larger dot at about one-third, a conspicuous dot between the origins of veins 3 and 4, and a very minute dot on vein 6. Hind-wings dark blackish-grey, cilia paler.
The perfect insect appears in February, and has been taken at sugar.
Described and figured from specimens in Mr. Fereday's collection.
LEUCANIA SEMIVITTATA, Walk.
(Leucania semivittata, Walk., Suppl. 628; Meyr., Trans. N. Z. Inst. xix. 12.)