Phytocoris pallidicollis Kerzhner, 1977

(Figs 4 F, 5, 6F, 8, 10, 11)

Phytocoris pallidicollis Kerzhner, 1977: 10 (sp. nov.); Schuh, 1995: 897 (cat.); Kerzhner & Josifov, 1999: 158 (cat.); Yasunaga, 2001: 256 (diag.); Schuh, 2002–2014: (cat.); Yasunaga & Schwartz, 2015: 22 (diag., disc.).

Diagnosis. Recognized by its moderate size; entirely pale dorsum, with a small area of dark spots; propleuron pale, with a thin, brownish, horizontal stripe (Fig. 6 F); left paramere with an obliquely protruding structure, right paramere widened horizontally; lobal sclerite elongate (Fig. 11). In Korea, this species can be confused with P. shabliovskii and P. longipennis, but is easily distinguished by the key (couplet 2) below; Male genitalia as in Figs. 8 and 10; female genitalia not examined. For more description and diagnostic characters, see Kerzhner (1977) and Yasunaga & Schwartz (2015).

Distribution. Europe, Japan, Korea, Far-East Russia.

Host plants. Alnus spp. ( Betulaceae), Juglans spp. ( Juglandaceae), Salix spp. ( Salicaceae), Tilia spp. and Tilia japonica (Miq.) Simonk (Tiliaceae) (Yasunaga & Schwartz, 2015).

Remarks. Yasunaga & Schwartz (2015) recorded this species from Korea based on their field notes. In this paper, we add detailed collection data below.

Material examined. South Korea, Gangwon –do: 1♂, Mt. Hambaeksan, Gohan –eup, Jeongseon –gun, 27.viii.2013, Y. Lee.

( P. goryeonus, P. intricatus, P. longipennis). A, Bursa copulatrix (Before dissect posterior wall). B, Bursa copulatrix. B’, Sclerotized ring (from another specimen). C, Posterior wall.