Elachista leucosticta Braun 1948

Elachista leucosticta new species (Figs. 89, 89a.)
Head shining dark yellowish gray; palpi dark brown, whitish inwardly and above; antennae dark brown. Thorax and fore wing dark brown; on the middle of the dorsum an irregular white spot reaching the middle of the wing, indented on the fold with a suggestion of a black plical spot (stigma) ; at twothirds of costa an oblique white bar to middle of wing and a little beyond it, a smaller and triangular tornal spot; extreme tip of wing white; cilia dark gray, with the scales around apex very elongate and scarcely contrasting with the cilia. Hind wings and cilia dark brownish gray. Legs dark brown, with a broad white band on hind tibiae ; tips of segments white.
Alar expanse : 6.5 mm.
Male genitalia (figs. 89, 89a) : uncus deeply divided, lobes narrow elongate, with short stiff setae on upper half only ; gnathos, two elongate elliptical knobs, each borne on a long arm ; costal area of harpe expanded, free process small, sacculus reduced, basal processes rather short, club-shaped, with a few scattered setae; anellus lobes curved, deeply concave laterally; vinculum triangular; aedeagus short, tapering to a point, no cornutus.
Type. — $, Constance Bay, Ontario, 21. VI. 1933 (G. S. Walley), [C. N. Coll., Type No. 5744].
Food plant and early stages unknown. By the male genitalia, this species is allied to the European serricontis Stainton.

Elachista leucosticta is a moth of the family Elachistidae. It is found in North America, where it has been recorded from California, Iowa and Ontario.

The wingspan is about 6.5 mm. The forewings are dark brown with an irregular white spot on the middle of the dorsum, an oblique white bar at two-thirds of the costa to the middle of the wing, as well as a smaller and triangular tornal spot. The extreme tip of the wing is white. The hindwings are dark brownish grey. Adults have been recorded on wing in June and from August to September.