Glypta biauriculata Strobl 1901

Glypta biauriculata Strobl 1901

(Figs. 1 A, 2 A, 4 A, 6 A, 7 A, 8 A–C, 9 A, B)

Glypta biauriculate Strobl 1901, in Strobl 1902: 18. Glypta laminate Kuslitzky 1973: 1583.

Description based on Japanese specimens: Female (n=13). Body length 6.5–8.0 mm.

Head. Ca. 0.6 times as long as wide. Clypeus 0.7 times as long as wide, pyramidically convex in lateral view (Fig. 2 A). Face slightly convex medially (Fig. 2 A), 0.5–0.6 times as long as wide. Frons with a pair of projection above each antennal socket (Fig. 1 A). OOL 1.6–2.0 times as long as OD; POL 1.2–1.4 times as long as OD. Mandible with narrow ventral flange by basal 0.6, its base flat. MSL 1.0 times as long as BWM. Antenna with 37– 38 flagellomeres. F1 1.7 times as long as F2.

Mesosoma. Punctate, punctures on lateral lobes of mesoscutum separated by 0.3–2.0 times their diameter. Epomia weak and short. Lateral area of pronotum entirely punctate except for areas near epomia and lower posterior angle. Both sides of mesoscutum near tegula strongly produced posteriorly. Propodeum entirely sparsely punctate. Posterior transverse carina of propodeum usually obscured medially. Anterior transverse and lateral longitudinal carinae of propodeum at least partly present. Fore wing length 6.0–7.0 mm. Fore coxa not curved, with weak ridge. Hind femur 6.9–7.0 times as long as maximum depth in lateral view. Hind TS1 2.2 times as long as TS2.

Metasoma. T1–T4 punctate (Figs. 6 A, 7 A). T1 1.3–1.4 times as long as maximum width, its median dorsal carina present on ca. basal 0.5 of tergite (Fig. 6 A). T2 1.0 times as long as maximum width. T2–T4 each with moderate a pair of oblique groove (Fig. 7 A). Ovipositor sheath 0.6 times as long as fore wing, 1.6–1.7 times as long as hind tibia.

Colouration. Body (excluding wings and legs) black, except for: apex of clypeus and palpi yellow, tip of mandible tinged with reddish-brown; scape, pedicel and dorsal surface of flagellum brown, ventral surface of flagellum yellow; posterior margins of T1–T7 and sclerotized part of sternites slightly tinged with reddish-brown, membranous parts of sternites whitish-yellow; ovipositor reddish-brown to yellowish-brown. Wings hyaline; veins and pterostigma brown except for yellow wing base. Legs (hind leg: Fig. 4 A) yellow to yellowish-brown, except for: all coxae and trochanters except for apices of each trochanter black, hind femur excluding narrow yellow areas on base and apex black, hind tibia excluding basal yellow area (usually basal 0.1), black, each hind tarsal segment except for its brown base and apex black. Black area of body and legs sometimes more or less changed as blackishbrown.

Male (n=10). Similar to female. POL 1.4–1.6 times as long as OD. Hind basitarsus 2.0–2.1 times as long as second tarsal segment; third tarsal segment 1.8–1.9 times as long as fifth tarsal segment.T1 1.4–1.5 times as long as maximum width, its median dorsal carina slightly longer and stronger than female. T2 0.9–1.0 times as long as maximum width. Posterior margin of subgenital plate convex to nearly straight (Fig. 8 A). Apical margin of paramere roundly produced (Figs. 8 B, 9 A, B). Dorsal margin of paramere with convexity apically (Figs. 8 B, 9 A). Clypeus entirely yellow. Mandible yellow except for brown tip. Fore coxa, mid coxa except for black base and all trochanters whitish yellow. Hind tibia and tarsus paler than female. Tegula sometimes tinged with yellowish brown.

Material examined. JAPAN: [Hokkaido] 1F, Sapporo city, Kannon-zawa, 7. vii. 2001, T. Yoshida leg. (KPMNH: KPM-NK5001175); 1M, same locality, 18. v. 2008, T. Yoshida leg. (Host: larva of Olethreutes sideranus (Treitschke, 1835) on Spiraea miyabei: em. 2. vi. 2008) (KPMNH: KPM-NK5001176); 1M, Mt. Tarumae-san, 11–12. vii. 1998, K. Konishi leg. (MsT) (NIAES); 3F and 1M, same locality and collector, 12–18. vii. 1998 (MsT) (NIAES); 1F, same locality and collector, 12–21. vii. 1998 (MsT) (NIAES); 3F and 2M, same locality and collector, 18–21. vii. 1998 (MsT) (NIAES); 3F and 1M, same locality and collector, 21–26. vii. 1998 (MsT) (NIAES); 1M, Kimobetsu town, Nakayama-toge, 800m alt., 15. vii. 1980, K. Maeto leg. (NIAES); 2M, Jozankei, 20. vi. 1967, K. Kusigemati leg. (KU); 1M, Touya, 9. vii. 1967, K. Kusigemati leg. (KU); 1F, same locality and collector, 10. vii. 1967 (KU), 1F, Vulkan, Golovnina, Kunashiri Is., 24. vii. 1973, Kasparyan leg. (ZIS). [Honshu] 1F, Yamanashi Pref., Daibosatsu-toge, 6. viii. 1969, M. Suwa leg. (KU). RUSSIA: 1F (holotype of G. laminate), Кудара-Сомон, Бурятия, 8. viii. 1970, Kasparyan leg. (ZIS).

Distribution (Fig. 10). Japan (Kunashri Is., Hokkaido, and Honshu); Far East Russia, North East Europe.

Biology. Olethreutes sideranus (Lepidoptera: Tortricidae) was recorded as a host (Watanabe & Maeto 2013).

Remarks. This species can easily be distinguished from all Japanese species by a pair of projections above each antennal socket, the clypeus pyramidically convex in lateral view, and the hind leg largely blackish-brown to black.