Oncocera, Stephens, 1829

Streltzov, A. N. & Dubatolov, V. V., 2020, First record of Oncocera bitinctella (Wileman, 1911) (Lepidoptera: Pyralidae, Phycitinae) in Russia, Far Eastern Entomologist 401, pp. 10-12 : 10-12

Oncocera bitinctella (Wileman, 1911)

Figs 1–3

Nephopteryx bitinctella Wileman, 1911: 359 (type locality: Japan)

Oligochroa bitinctella: Inoue 1982: I: 388–397, II: 47.

Oncocera bitinctella: Yamanaka et al., 2013: 358.

MATERIAL EXAMINED. Russia: Sakhalinskaya oblast, South Kuril Islands, Kunashir Island, vicinity of Sernovodsk, sedge-umbrella meadow near the littoral (Pacific coast),

25.VII 1967, 1 ♂, leg. V. I. Kuznetsov; Khabarovskii krai, neighborhood of Khabarovsk ,

Bolshekhekhtsirsky Reserve , vicinity of the Chirki cordon, 48°12' N, 134°41' E, rocks, at light trap, 14–5.VIII 20128, 1 ♂, leg. V. V. Dubatolov .

DESCRIPTION. Male. Labial palps: large, bent to the top, covered with a tightly adjacent scales; antennae: the first segment (postbasal) curved with a dense brush of sharpening scales; forehead: wide, approximately equal to the diameter of the eye, in the front part there is a tuft of two symmetrical groups of sharpening scales; thorax and tegulas light gray with a brownish tint; forewing length 12–14 mm; wingspan 24–27 mm; the general background of the forewings varies greatly – from light gray to grayish brown; the figure consists of two black dots in the discal cell and two small black dots – one in the medial part of the wing near the anal edge, the second in the postdiscal part; hind wings monochromatic silver-gray with blackout at the outer edge or gray-brown; the fringe of both wings is silver gray or gray brown.

Male genitalia ( Fig. 3 ). Uncus wide, triangular with a rounded apex; gnathos short with apex hamate; valva is narrow with a slightly sclerotized bone margin and a small rounded harpa; juxta is wide, rounded with thickened branches; aedeagus straight, large and 1.5 times longer than valva; cornuti on the vesica in the form of two differently sized large spines, of which the medial is more than 3 times larger; on the top of the aedeagus (on the tube itself)

there is a serrated sclerotization site.

rovskii krai); 3 – male genitalia.

DISTRIBUTION. Russia (new record): Kuril Islands (Kunashir), Khabarovskii krai;

Japan: Hokkaido, Honshu, Shikoku, Kyushu (Yamanaka et al., 2013).

REMARKS. This is the second species of the genus Oncocera known from the Russian

Far East. It differs from O. semirubella (Scopoli, 1763) by the color of forewings and by the structure of the male genitalia (in O. bitinctella there is a serrated sclerotization section on the aedeagus tube, while O. semirubella has two large curved spines).

The author thanks S.Yu. Sinev (St Petersburg) for the materials from the Kuril Islands that were made available for review. The study was supported by the Russian Foundation for

Basic Research (Grant No. 17-04-00754).

Figures

Figs 1–3. Oncocera bitinctella, male. 1 – habitus (Kunashir Island); 2 – habitus (Khaba-