Siemssenius rufipennis (Chûjô)

(Figs 9 A– 9I)

Pseudoliroetis rufipennis Chûjô, 1962: 178; Kimoto, 1969: 36; Takizawa et al., 1995: 12; Kimoto & Chu, 1996: 70. Siemssenius rufipennis: Kimoto, 1989b: 252; Kimoto & Takizawa, 1997: 181; Zhang et al., 2008: 127 (key).

Type locality. Chiayi county, Alishan (阿里山), 23°30’32”N, 120°48’07”E, 2200 m.

Type material (n= 16). Holotype ♂ (TARI), labeled: “ Arisan (= Alishan, 阿里山) / FORMOSA / 24– 25.V.1933 / Col. M. CHUJO [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Ho / Type [p, w, circle label with red letters and border but faded out] // 2353 [p, w]” . Paratypes: 1♀ (TARI), labeled: “ Arisan (= Alishan, 阿里山) / FORMOSA / 24–25.V.1933 / Col. M. CHUJO [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // ALLo / Type [p, w, circle label with gray letters and border but faded out] // 2352 [p, w]” ; 2♂♂, 3♀♀ (TARI): “ Arisan (= Alishan, 阿里山) / FORMOSA / 24–25.V.1933 / Col. M. CHUJO [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [p, w, circle label with green letters and border] // 2644-2648 [p, w]” 1♂ (TARI): “ Kahoodai (= Chiapaotai, 佳保台, in Taichung county) / 6-VI-1933 / R. Takahahi [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] // 2754 [p, w]” ; 1♂ (TARI): “ TAIWAN / Hassenzan (= Pahsienshan, 八仙山; p,) / 5.VI.1942 [h] / S. Issiki [p, w] // 黎明 - 白岩 [on the back of the same label, h] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] // 2657 [p, w]” ; 2♂♂, 1♀ (TARI): “ TAIWAN / HASSENZAN (= Pahsienshan, 八仙山; p,) / 6.VI.1942 [h] // A. MUTUURA [p, w] // 新八仙山 [on the back of the same label, h] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] // 2658-2660 [p, w]” ; 2♂♂ (TARI): “ Formosa. / Musha, (= Wushe, 霧社) 1919 / V.18–VI.15. / T. Okuni, [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] //760 & 2165 [p, w]” ; 1♂ (TARI): “ Formosa. / Musha, (= Wushe, 霧社) 1919. / V.18–VI.15. [p, w] // T. Okuni, / J. Sonan, / M. Miy., M. Yosh. [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] // 2166 [p, w]” ; 1♂ (TARI): “ Sankakuho (= Meifeng, 梅峰) / 6-V-1927 / Col. J. Sonan [p, w] // Pseudoliroetis / rufipennis / CHÛJÔ [h] // DET M. CHUJO [p, w] // Para / Type [w, p, circle label with green letter and border] // 2167 [p, w]”.

Additional specimens (n= 109). Chiayi: 1♂ (TARI), Alishan (阿里山), 20–23.VI.1956, leg. S. C. Chiu; 1♀ (SEHU), 7–8.VII.1977, leg. H. Takizawa; 1♂ (TARI), Tatachia (塔塔加), 17.V.2010, leg. M.- H. Tsou; Hualien: 1♂, 2♀♀ (TARI), Tayuling (大禹嶺), 9–16.VI.1980, leg. K. S. Lin & B. H. Chen; 1♀ (SEHU), same locality, 9.VII.1983, leg. H. Takizawa; 1♀ (TARI), same locality, 4.V.2014, leg. J.- F. Tsai; Nantou: 5♂♂ (TARI), Hohuanshan (合歡山), 17–18.V.2009, leg. C.-F. Lee; 1♀ (TARI), same locality, 26.VII.2010, leg. S.- F. Yu; 2♀♀ (TARI), Meifeng (梅峰), 10.V.1979, leg. K. C. Chou; 2♂♂, 2♀♀ (TARI), same locality, 20–22.VI.1979, leg. K. S. Lin & B. H. Chen; 2♂♂, 3♀♀ (TARI), same locality, 2–4.VI.1980, leg. L. Y. Chou & C. C. Chen; 1♂, 1♀ (TARI), same locality, 5–8.VI.1980, leg. C. C. Chen; 1♀ (TARI), same locality, 8.VI.1980, leg. K. S. Lin & B. H. Chen; 3♂♂, 2♀♀ (TARI), same locality, 7–9.V.1981, leg. K. S. Lin & S. C. Lin; 4♂♂ (TARI), same locality, 24– 26.VI.1981, leg. K. S. Lin & W. S. Tang; 1♀ (TARI), same locality, 15.VII.1982, leg. S. C. Lin & C. N. Lin; 1♀ (TARI), same locality, 8–11.V.1984, leg. K. C. Chou & C. C. Pan; 1♂ (NMNS), same locality, 15.IV. –7.V.2003, leg. C. S. Lin & W. T. Yang; 1♀ (TARI), same locality, 3.VII.2008, leg. M.- H. Tsou; 1♀ (TARI), same locality, 17.VI.2010, leg. C.- F. Lee; 1♀ (SEHU), Nanshanshi (南山溪), 4.VI.1982, leg. K. Ra; 1♀ (TARI), same locality, 7.IV.2010, leg. Y.- T. Wang; 1♂ (TARI), Penpushi (本部溪), 23.IV.2015, leg. B.-X. Guo; 1♀ (NMNS), Shihtyutou (獅子頭), 2.VIII.1994, leg. C. C. Lo; 1♀ (NMNS), Sungkang (松崗), 31.V.1965, leg. B. S. Chang; 2♂♂ (NMNS), same locality, 3.VI.1965, leg. B. S. Chang; 1♂ (SEHU), same locality, 15.VI.1970, leg. Fukuda; 2♂♂ (SEHU), same locality, 21.VII.1982, leg. K. Ra; 5♂♂, 2♀♀ (SEHU), same locality, 8.VII.1983, leg. H. Takizawa; 1♂ (SEHU), same locality, 14.VII.1983, leg. K. Ra; 1♀ (SEHU), same locality, 20.VII.1983, leg. K. Ra; 8♂♂, 1♀ (SEHU), same locality, 10.VI.1984, leg. K. Ra; 5♂♂ (SEHU), same locality, 17.VI.1984, leg. K. Ra; 1♀ (TARI), same locality, 13–15.IX.1984, leg. K. S. Lin & S. C. Lin; 1♂, 1♀ (NMNS), same locality, 10.VII.2000, leg. C. C. Lo; 1♀ (TARI), same locality, 20.VI.2009, leg. Y.- T. Wang; 2♀♀ (TARI), Tsuifeng (翠峰), 21.VI.1979, leg. K. S. Lin & B. H. Chen; 1♂ (TARI), same locality, 3.VI.1980, leg. L. Y. Chou & C. C. Chen; 1♂, 1♀ (TARI), same locality, 8.V.1981, leg. K. S. Lin & S. C. Lin; 1♀ (TARI), same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang; 2♂♂, 1♀ (SEHU), same locality, 11.VII.1983, leg. H. Takizawa; 1♀, same locality, IV.1984, leg. K. S. Lin & K. C. Chou, with Malaise trap; 1♂ (SEHU), same locality, 20–21.VII.1995, leg. H. Takizawa; 1♂, 1♀ (TARI), same locality, 18.VI.2010, leg. C.- F. Lee; 5♂♂, 1♀ (TARI), Tungpu (東埔), 20–22.VI.1980, leg. C. C. Chen; 1♂ (NMNS), Wushe (霧社), 31.V.1965, leg. B. S. Chang; 1♀ (TARI), same locality, 21–23.VI.1983, leg. K. S. Lin & S. C. Lin; 1♂ (TARI), Yuanfeng (鳶峰), 12.VI.2014, leg. C.- F. Lee; Taichung: 1♂, 1♀ (TARI), Anmashan (鞍馬 山), 6–9.VII.1979, leg. L. Y. Chou; 1♂, 1♀, same locality, 28.VI.2009, leg. H.- H. Lee; 1♂ (TARI), 2♂♂, 1♀ (TARI), Lishan (梨山), 5.VI.2016, leg. J.-C. Chen; Piru (畢祿), 18.VI.2010, leg. C.-F. Lee; 1♂, same locality, 1.VII.2008, leg. S.- F. Yu; 1♀ (TARI), same locality, 1.VII.2008, leg. M.- H. Tsou; 1♂, 1♀ (TARI), same locality, 18.VI.2010, leg. C.- F. Lee; 1♂ (TARI), Wuling (武陵), 5.VI.2009, leg. H. Lee

Description. Aedeagus concave and wide, sides parallel; apico-lateral angles obtusely angulate, wide in lateral view, bases of apico-lateral angles moderately arcuate; middle of apical margin with a long, broad tube-like process, slender in lateral view, apex deeply and medially depressed; dorsal process subapically and strongly curved in lateral view, but slightly widened in dorsal view, apex pointed in dorsal and lateral views (Figs. 9 C–9D). Ventrite V (Fig. 9 F) not modified in female, apical margin slightly sinuate. Gonocoxae reduced. Ventrite VIII (Fig. 9 H) heart-shaped, with extremely short spiculum, with sparse, elongate setae along apical margins of triangulate processes. Tergite VIII (Fig. 9 G) with apex pointed, with sparse setae on disc. Receptacle of spermatheca (Fig. 9 I) weakly swollen, barely separated from pump, pump much narrower and longer, sharply curved; proximal spermathecal duct short and broad.

Diagnosis. Siemssenius rufipennis can be separated from other members of the species group by the combination of the following characters: the moderately arcuate bases of apico-lateral angles (smooth bases in S. jungchani sp. nov. (Fig. 7 A) and S. yuae sp. nov. (Fig. 11 A); sharply arcuate bases in S. tsoui sp. nov. (Fig. 10 A)) and long median tube-like process of the apical margin (extremely short process in S. liui sp. nov. (Figs 8 A–8B)) of the aedeagus (Figs 9 A–9B).

Host plants. Lonicera acuminata Wall., 1832 (Caprifoliaceae); Hypericum nagasawae Hayata, 1911 (Guttiferae) .

Distribution. Widespread in central Taiwan (Chiayi, Hualien, Nantou, and Taichung conties) (Fig. 4).