Seokia pratti Leech, 1890
•TYPE LOCALITY. «Chang-yang» [China].
• RANGE. From central China to the Ussuri region, Korea.
•DISTRIBUTION AND VARIATION. In the Ussuri region (S. Sikhote-Alin Mts.), the ssp. eximia (Moltrecht, 1909) (=jefremovi (Nekrutenko, I960)) is known to occur.
•HABITATS AND BIOLOGY. Flying locally in mountain mixed and/or coniferous forests at 600-1,000 m a.s.l. Flight period: July to August. Males keep close to roads and openings but females stick to tree canopies. Host plant (Omelko, 1978): Pinus koraiensis. Egg-laying on needles in 1-2 clumps. Instars 2 and 3 hibernating on branches of the host plant. Pupation on twigs at the place of feeding. Pupae stage lasting about three weeks (Omelko, 1978).
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