150 Pacific Insects VoL 3, no. 1 Hokuchin-dake in Hokkaido). Timarcha kawakamii Matsumura, 1911, Tohoku Imp. Univ., Sapporo, Jour. Coll. Agr. 4: 141 S. Saghalien; Rishiri I.). DISTRIBUTION: E. Siberia; Sachalin; Japan (Hokkaido, Rishiri I.). HOSTS: Polygonum sachalinense Fr. Schm. (3r3r4 & K ] ) ) ; Artemisia vulgaris Linn. var. indica Maxim, (a^^f). virgata (Motschulsky)
1961 Chujo & Kimoto: Japanese Chrysomelidae 151 HOSTS : Populus spp. (^n-Yt^oS) [Populus Maximoviczii Henry etc., F P -Y^^f ^]; Salix spp. (-Y^-^f Off). In Europe: Populus spp. (^^-Y^-^Og); Sfa/ix spp. (-Y-r vigintipunctata (Scopoli) -tt^^A^ Coccinella vigintipunctata Scopoli, 1763, Ent. Carn. 78 (C. Europe). Una 20-punctata, Baly, 1874, Ent. Soc. Lond., Trans. 1874: 173 (Nagasaki; Manchuria; Siberia; Europe). Una 20-punctata var. costella Marseul, 1888, L'Abeille 26: 10 (Japan). DISTRIBUTION: Europe; Siberia; China; Formosa; Korea (incl. Quelpart I.); Japan (Hokkaido, Honshu, Oki I., Shikoku, Kyushu, Tsushima, Yakushima, Kuchinoerabu-jima). HOSTS: Salix spp. (-Yt¥Oi). In Europe: Salix spp. (-rt^Og). Genus Drochrysa Motschulsky, 1860 tFU=iyi)^^^M fastuosa (Scopoli) ;*- K V 3 y fr^^-y Chrysomela fastuosa Scopoli, 1763, Ent. Carn. 74 (Europe). — Weise, 1916, Col. Cat. 68: 69 (Europe; Siberia; Japan). DISTRIBUTION: Europe; Siberia; Japan. HOSTS: In Europe: Cynanchum sp. (#^&y ^Jjvo— g) ; Galeopsis bifida Boenn. (^ ^ ^ f l l a y ^ ) ; Lamium sp. (;*- F 17 =* y #O-8). depressa Baly Jr ?v $. \L 7 ? ss j* M Gastrolina depressa Baly, 1859, Ann. Mag. Nat. Hist. ser. 3, 4: 61 (N. China). — Chujo & Kimoto, 1960, Niponius, Takamatsu 1 (4) : 4 (Japan). Gastrolina thoracica Baly, 1864, Ent. Soc. Lond., Trans, ser. 3, 2: 228 (Amur).—Baly, 1874, op. cit. 1874: 172 (Japan). —Chujo & Kimoto, 1960, Niponius, Takamatsu 1 (4): 4 (synonymized with G. depressa Baly). DISTRIBUTION: China; E. Siberia; Korea; Japan (Hokkaido, Honshu, Sado I., Shikoku, Kyushu). HOSTS: Juglans ailanthifolia Carr.\^r^Jf)V ^ ) ; Pterocarya rhoifolia Zieb. & Zucc. (U-]7^>0. peltoides (Gebler) A y ; ^ t 7 ^ A ^ Chrysomela peltoides Gebler, 1832, Nouv. Mem. Moscou 2: 74 (E. Siberia). Gastrolina peltoides, Chen, 1934, Recherch. Chysom. Chine et Tonkin 53 (N. China; E. Siberia; Japan). Gastrolina japana Jacoby, 1885, Zool. Soc. Lond., Proc. 1885: 210, pl. ll, fig. 12 (Japan).— Chujo & Kimoto, 1960, Niponius, Takamatsu 1 (4): 4 (synonymized with G. peltoides Gebler). DISTRIBUTION: E. Siberia; N. China; Japan (Hokkaido, Honshu), HOST: Alnus hirsuta Turcz. (^-r^^y/^),