Arcynopteryx polaris Klapálek, 1912

Chen, Zhi-Teng, 2019, A new brachypterous Filchneria and two new generic records for China, Arcynopteryx and Pictetiella (Plecoptera: Perlodidae), Zootaxa 4679 (3), pp. 511-526 : 521-522

Arcynopteryx polaris Klapálek, 1912

Figs. 15–17 .

Arcynopteryx dichroa polaris Klapálek, 1912: 20 .

Arcynopteryx altaica Zapekina-Dulkeit, 1957: 223 ; Illies, 1966: 352; Zwick, 1973: 223.

Arcynopteryx dichroa Illies, 1966: 353 .

Arcynopteryx polaris Zhiltzova, 1995: 9 ; Teslenko & Bazova, 2009: 1062; Teslenko, 2009: 698; Teslenko & Zhiltzova, 2009: 26; Zwick, 2010: 92 ; Teslenko, 2012: 8 ; Judson & Nelson, 2012: 40 .

Material examined. One male, China: Jilin Province, Changbaishan National Natural Reserve, Pond of the Visitor Center ( Fig. 15 ), 42.07111 N, 128.06358 E, 1700 m, June 29, 2011, J. Morse, J. Murphy, Z. Diao (donated by Shuang Qiu in 2019, ICJUST).

Remarks. Body ( Figs. 16 , 17 ) length ca. 17 mm (excluding antennae and cerci). The male specimen of A. polaris studied herein is macropterous, unlike most other known brachypterous males as stated by Judson & Nelson (2012). The following characters of the Chinese male specimen are identical with those of Russian and Mongolian specimens depicted by Teslenko & Zhiltzova (2009) and Judson & Nelson (2012): the color pattern of head and pronotum; the slender and finger-shaped hemitergal lobes; the two sclerotized bands near the median slit between hemitergal lobes; the back-pointed, long and needle-like epiproct. It is worth noting that many historical specimens of A. polaris were misidentifed as A. altaica Zapekina-Dulkeit, 1957 and finally revised by Zhiltzova (1995). Teslenko (2006) reported A. polaris from the “East-Manchurian Mountains”, however, the accurate locality is not specified and “Manchuria” is not a recognized toponym now. In the recent generic checklist of Chen & Du (2018) and the species catalogue of Yang & Li (2018), Arcynopteryx was not included.

Figures

FIGURE 15. Locality of Arcynopteryx polaris Klapálek, 1912 and Pictetiella asiatica Zwick & Levanidova, 1971 in Jilin Province of northeastern China.

FIGURE 16. Arcynopteryx polaris Klapálek, 1912, male. A. habitus, dorsal view; B. habitus, ventral view; C. head and pronotum, dorsal view; D. head and thorax, ventral view; E. right forewing, dorsal view; F. right hindwing, dorsal view. Scale bar = 1 mm.

FIGURE 17. Arcynopteryx polaris Klapálek, 1912, male. A. abdomen, dorsal view; B. abdomen, ventral view; C. terminalia, dorsal view. Scale bar = 1 mm.