Alnetoidia (Alnetoidia) sapporensis (Matsumura, 1932)

(Figs. 12–22)

Zigina sapporoensis + Alnetoidia satsumana Matsumura, 1932, Ins. Mats. 6(3): 116 (Japan).

Erythroneura satsumana: Ishihara, 1953, Sci. Rpt. Matsuyama Agr. Col. 11: 33 (Japan).

Alnetoidia satsumana: Vilbaste, 1968: Ü. Zik. Prim. Geb.: 99 (Russia: Maritime Territory).

Alnetoidia sapporoensis + satsumana: Nast, 1972, Pal. Auch. Ann. Check List: 297.

Alnetoidia sapporoensis: Anufriev, 1978, Acad. Sci. USSR Hor. Soc. Ent. Uni. Sov. 60: 81 (Russia).

Alnetoidia sapporoensis: Choe, 1986, Thes. Dr. Agr. Seoul. Nat. Univ.: 38 (Korea).

Alnetoidia sapporoensis: Anufriev & Emel’yanov, 1988, Keys Ins. Far East USSR 2: 111 (Russia, Japan).

Alnetoidia sapporoensis: Kwon et al., 1994, Check List Ins. Kor.: 92 (Korea).

Alnetoidia sapporoensis: Kwon et al., 1996, List Biol. Spec. Kor.: 119 (Korea).

Alnetoidia sapporoensis: Lee & Chung, 1997, Ins. Pests Trees & Shrubs: 292, 346, 363 (Korea).

Alnetoidia sapporoensis: Kwon & Huh, 2001, Ins. Kor. Suppl.: 286 (Korea)

Alnetoidia sapporoensis: Song & Li, 2010, Pan-Pac. Entomol. 86 (3): 70 (Russia, Japan).

Alnetoidia sapporoensis: Paek et al., 2010, Check List Kor. Ins.: 63 (Korea).

Alnetoidia sapporoensis: Lee et al., 2014, Nat. List Spec. Kor. Ins. Hem. II: 89 (Korea).

Description. General coloration whitish yellow, with anterior part of dorsum pale yellow. Crown and pronotum whitish with irregular hypodermal markings; crown slightly produced medially. Eyes whitish brown. Face comparatively short, whitish yellow without conspicuous marking; frontoclypeus and anteclypeus broad and inflated. Scutellum whitish yellow, without any spot or stripe; scutellar suture narrow, prominent. Forewing slender, whitish yellow and semihyaline, with apical cells hyaline; clavus yellow. Second sternal apodeme in male with posterior lobes well developed, slightly exceeding 4th sternite.

Male genitalia. Pygofer lobe relatively small, with dorsal and caudodorsal margins deep roundly produced; dorsal appendage comparatively wide, truncate apically, extending beyond hind margin of pygofer lobe; ventral ap- pendage comparatively short, curved upwards and gently pointed apically, armed with 2 rigid setae at base; subapical teeth absent on dorsal side. Subgenital plate with 3 macrosetae on outer surface, and several marginal microsetae in a row. Style rather long and truncate apically, with large preapical lobe. Connective nearly U-shaped, with short stem, and with broad median anterior lobe. Aedeagal shaft gently curved ventrally in lateral view; subapical processes crescent-shaped, reaching to level of shaft tip in caudal view; gonopore apical, on ventral side.

Length. Male 3.3−3.5mm, female 3.5−3.7mm.

Materials examined. Korea, Jejudo Province: 3 males & 8 females, Hallasan, 26.VII.1982, Y.J. Kwon; Gyeongbuk Province: 2 males & 4 females, Yecheon, 28.VIII.2008, all same collector .

Distribution. Korea (Central, South, Jejudo), Japan (Hokkaido, Honshu), Russia (Maritime Territory).

Host Plant. Acer spp. (cf. Esaki & Ito, 1954; Choe, 1986; Lee & Chung, 1997; For. Res. Ins., 1995; Kwon & Huh, 2001), Acer buergerianum (cf. For. Res. Ins., 1995), Acer cissifalium (cf. For. Res. Ins., 1995), Acer ginnala (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer japonicum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer mono (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer negundo (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer okamotoanum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer palmatum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer pseudo-sieboldianum (cf. Choe, 1986; For. Res. Ins., 1995; Kwon & Huh, 2001), Acer pseudosieboldianum koreanum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer saccharinum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer tegmentosum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer triflorum (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer tschonoskii rubripes (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Acer ukurunduense (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Alnus sp. (cf. Ishihara, 1953), Betula chinensis (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Betula costata (For. Res. Ins., 1995; Kwon & Huh, 2001), Betula davurica (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Betula ermanii (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Betula spp. (cf. Ishihara, 1953; For. Res. Ins., 1995; Lee & Chung, 1997; Kwon & Huh, 2001), Betula papyrifera (cf. Esaki & Ito, 1954), Betula platyphylla (cf. For. Res. Ins., 1995; Choe, 1986; Kwon & Huh, 2001), Betula platyphylla japonica (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Betula schmidtii (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza bicolor (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza cunea (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza cyrtobotrya (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza maximowiczii (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza thunbergi intemedia (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Lespedeza spp. (cf. Vilbaste, 1968; Choe, 1986; Lee & Chung, 1997; Kwon & Huh, 2001), Ulmus davidiana (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Ulmus davidiana japonica (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Ulmus laciniata (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Ulmus parvifolia (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Ulmus pumila (cf. For. Res. Ins., 1995; Kwon & Huh, 2001), Ulmus spp. (cf. Esaki & Ito, 1954; Choe, 1986; Lee & Chung, 1997; Kwon & Huh, 2001).