Phytocoris longipennis Flor, 1861

(Figs. 1 D, 3E–F, 4A, 5, 6C, 7, 9, 11, 12)

Phytocoris longipennis Flor, 1861: 593, 601 (sp. nov.); Schuh, 1995: 890 (cat.); Kerzhner & Josifov, 1999: 157 (cat.); Yasunaga, 2001: 255 (diag.); Zheng et al., 2004: 495 (diag.); Wheeler et al. 2006: 1000 (N.Am. record); Schuh, 2002– 2014: (cat.).

Diagnosis. Recognized by its moderate size; brown, somewhat mottled dorsum; longer and more slender appendages than other congeners; antennal segment I longer than mesal length of head and pronotal length; segment III longer than basal width of pronotum; ratio of hind tibia: pronotum over 3.5; male genitalia as in Figs. 7, 9, Female genitalia as in Fig. 12. For more diagnostic character, description and figures, see below papers (Wagner & Weber, 1964, Kerzhner, 1988a, Zheng et al., 2004, Wheeler et al., 2006, Yasunaga & Schwartz, 2015).

Distribution. Europe, Korea, North America, Far-East Russia.

Host plants. Associated with various deciduous broadleaves; Acer spp. ( Aceraceae), Alnus spp., Betula spp., Corylus spp. ( Betulaceae), Fagus spp., Quercus spp. ( Fagaceae), Fraxinus spp. ( Oleaceae), Crataegus spp., Malus spp., Prunus spp., Sorbus spp. ( Rosaceae), Platanus spp. ( Platanaceae), Populus spp., Salix spp., ( Salicaceae), Tilia spp. ( Tiliaceae) (Wheeler et al., 2006, Yasunaga & Schwartz, 2015).

Remarks. This species, as a rule, can be recognized by the concolorously pale or brown-colored pronotum. On the other hand, in Korean populations, some specimens have a generally fuscous pronotum (Figs. 3 E–F), and diverse color variation on the dorsum (Figs. 3 E–F, 4A).

Material examined. South Korea: Gangwon –do: 4♀, Mt. Jumbong, Jindong –ri, Girin –myun, Inje –gun, from light trap, 15.vii.2015, M. S. Oh ; 3♂, ditto, 11.vii.2016, M. S. Oh, S. H. Lee, J. Y. Choi, H. J. Ahn; 5♂, Osaek –ri, Seo –myeon, Yangyang –gun, from light trap, 29.vi.2016, M. S. Oh, S. H. Lee.

(9: P. longipennis; 10–11: P. minakatai; 12–13: P. ohataensis; 14: P. pallidicollis; 15–16: P. shabliovskii).