Polycaena wangjiaqii Huang

Huang, Hao & Li, Yu-Fei, 2016, Notes on the genus Polycaena Staudinger (Lepidoptera: Riodinidae) with descriptions of two new species from China, Zootaxa 4105 (6), pp. 575-590 : 584

Polycaena wangjiaqii Huang , sp. n.

( Figs. 14 , 42 , 51 , 60 , 67 , 75 )

Polycaena lama: Sugiyama, 2015: 36 , fig. 4 for ♂ genitalia, pl. 3, figs. 1, 15 for ♂ from NW Yunnan, figs. 2, 16 for ♀ from NW Yunnan.

Type material. Holotype ( Fig. 14 ): ♂, CHINA: Yunnan province, Diqing Tibetan Autonomous Prefecture, Zhongdian County (Shangri-La), Pudacuo National Park, Bitahai, 3200 m, 20.VII.2008, J.-Q. Wang (in an expedition organized by Shanghai Normal University for scientific purpose) leg., deposited in SNUC. Paratype: 1♂, same data as holotype (in coll. Z.-H. Zheng).

Male holotype description. Length of forewing: 16.0 mm. Eye hairy. Antennal club with pale patch at base. Both wings same shaped as in P. l am a.

Wing-pattern ( Fig. 14 ). Both wings on upper side with all markings placed as in P. l a m a, but colored in a different way: cell spot and postdiscal spots in spaces 1b-5 of forewing reddish orange, postdiscal spots in spaces 6 and 10 of forewing cream, not white as in P. l ama. Both wings underside exactly as in P. lama .

Male genitalia ( Figs. 42 , 51 , 60 , 67 , 75 ). Uncus in dorsal without branches. Fenestrula narrowly present at middle. Valva elongate, without the ventral branch found in P. lama . Ampulla of valva remote from distal tip of harpe, not overlapped by harpe. Harpe of valva elongate, without inner process rising from sacculus. Central plate of valvae with posterior branches longer than basal part, depressed dorsoventrally. Juxta with dorsal part extending both anteriorly and posteriorly in lateral view. Phallus in lateral view sinuate, without a dorsal corner. Coecum penis in dorsal view not expanded laterally.

Description of male paratype. No individual variation found between the paratype and holotype.

Etymology. This new species is named in honor of Mr. Wang Jia-Qi, Shanghai, who collected the type series.

Diagnosis. This new species is similar to P. l am a in external features, but can be distinguished from it by the following combination of male characters: 1) postdiscal spots and cell spot on forewing upper side are reddish orange in color, not white as in P. lama ; 2) fenestrula of male genitalia is present at middle; 3) valva has a ventral branch rising from sacculus; 4) harpe has no inner process; 5) harpe is more elongate, well separated from ampulla and has a much longer dorsal margin; 6) ampulla is more pointed at distal end; 7) central plate between valvae has posterior branches depressed dorsoventrally; 8) central plate is well exposed, not concealed by valvae; 9) juxta has both anterior and posterior branches equal in length; 10) juxta has posterior branches more sharply pointed at ends; 11) phallus is longer and more sinuate, and has apical two fifth down-curved in lateral view.

The new species can be distinguished from all other species of the genus as in the key below.

Remarks. It is remarkable that P. wangjiaqii and P. lama have great similarity in external features but have significant differences in male genitalia.

Figures

FIGURES 1 – 24. Habitus of Polycaena taxa at same scale. 1 – 8 — Polycaena kansuensis; 1 – 2 — syntype ♂ and its labels; 3 – 6 — ♂♂ from Xiahe, S Gansu; 7 – 8 — ♂ from Xining, NE Qinghai. 9 – 13 — P. lama; 9 — syntype ♂ (after Leech [1893]); 10 — syntype ♀ (after Leech [1893]); 11 — ♂ from Litang; 12 — ♀ from Kangding; 13 — ♂ from Yajiang. 14 — P. wangjiaqii, holotype ♂. 15 – 18 — P. sejila; 15 – 16 — holotype ♂; 17 – 18 — paratype ♂. 19 – 20 — P. lua taibaiensis, ♂♂ from Chang-an, Shaanxi. 21 – 22 — P. lua lua; 21 — ♂ from Huangyuan, NE Qinghai; 22 — ♂ from Guoluo, Qinghai. 23 – 24 — P. m i no r; 23 — ♂ from Batang, W Sichuan; 24 — ♂ from Yushu, SE Qinghai. 1, 3, 5, 7, 15, 17 — upper side; 2, 4, 6, 8, 16, 18 — underside; 9 – 14, 19 – 24 — upper side (left half) and underside (right half).

FIGURES 41 – 49. ♂ genitalia in lateral view at same scale. 41 — Polycaena lama (specimen shown in Fig. 11); 42 — P. wangjiaqii, holotype (Fig. 14); 43 — P. kansuensis (Fig. 5); 44 — P. sejila, holotype (Fig. 15); 45 — P. lua lua (Fig. 22); 46 — P. lua lua (Fig. 21); 47 — P. lua taibaiensis (Fig. 19); 48 — P. lua taibaiensis (Fig. 20); 49 — P. minor (Fig. 23).

FIGURES 50 – 58. Tegumen and scaphium in dorsal view (50 – 52, 55 – 58 at same scale; 53 – 54 at an enlarged scale). 50 — Polycaena lama (specimen shown in Fig. 11); 51 — P. wangjiaqii, holotype (Fig. 14); 52 — P. kansuensis (Fig. 7); 53 — P. sejila, holotype (Fig. 15); 54 — P. m i no r (Fig. 23); 55 — P. lua lua (Fig. 22); 56 — P. lua lua (Fig. 21); 57 — P. lua taibaiensis (Fig. 19); 58 — P. lua taibaiensis (Fig. 20).

FIGURES 59 – 65. Inner lateral view of left valva (left half) and outer lateral view of left valva (right half) (59 – 61 at same scale; 62 – 65 at an enlarged scale). 59 — Polycaena lama (specimen shown in Fig. 11); 60 — P. wangjiaqii, holotype (Fig. 14); 61 — P. kansuensis (Fig. 7); 62 — P. sejila, holotype (Fig. 15); 63 — P. minor (Fig. 23); 64 — P. lua lua (Fig. 22); 65 — P. lua taibaiensis (Fig. 19).

FIGURES 66 – 72. Inner lateral view of right valva, central plate, juxta and phallus and dorsal view of juxta (at left bottom) (66 – 68 at same scale; 69 – 72 at an enlarged scale). 66 — Polycaena lama (specimen shown in Fig. 11); 67 — P. wangjiaqii, holotype (Fig. 14); 68 — P. kansuensis (Fig. 7); 69 — P. sejila, holotype (Fig. 15); 70 — P. lua lua (Fig. 22); 71 — P. lua taibaiensis (Fig. 19); 72 — P. minor (Fig. 23).

FIGURES 73 – 79. Lateral view of central plate (at top), dorsal view of central plate (at center) and lateral or ventral view of phallus (at bottom) (73 – 75 at same scale; 76 – 79 at an enlarged scale). 73 — Polycaena lama (specimen shown in Fig. 11); 74 — P. kansuensis (Fig. 7); 75 — P. wangjiaqii, holotype (Fig. 14); 76 — P. sejila, holotype (Fig. 15); 77 — P. lua lua (Fig. 22); 78 — P. lua taibaiensis (Fig. 19); 79 — P. minor (Fig. 23).