Agnetina gladiata ( Wu, 1962 )

Zhang, Rui, Dong, Miao & Li, Weihai, 2025, Additions to the genus Agnetina Klapálek, 1907 (Plecoptera: Perlidae) from China, with a new synonym, Zootaxa 5719 (2), pp. 283-288 : 286-287

Agnetina gladiata ( Wu, 1962)

( Figs. 2–3 )

Neophasganophora gladiata Wu, 1962: 140 ; Illies, 1966: 632.

Phasganophora gladiata ( Wu, 1962) : Zwick, 1973: 266.

Agnetina gladiata ( Wu, 1962) : Zwick, 1984: 73; Sivec et al.: 29; Du & Chou, 1998: 104; Du et al. 1999: 60; Yang & Li, 2018: 26.

Agnetina kryzhanovskii Sivec & Zhiltzova, 1997: 110 . syn. nov.; Du et al. 1999: 60; Yang & Li, 2018: 26.

Type material. Holotype: male ( IZCAS), labelled “ China: Yunnan Province, Jingdong County (of Pu’er City), Dongjiafen village , 1250 m, 1956.VI.12, leg. Zagulyaev ”; paratypes: 1 male ( IZCAS), labelled “ China: Yunnan Province, Jingdong County , 1170 m, 1956.VI.9, leg. Zagulyaev ”; 1 female ( IZCAS), same locality and collector, 1956.V.27 ( Fig. 2a ).

Distribution. It is only known from Jingdong County, Yunnan Province in southwestern China.

Remarks. Agnetina gladiata ( Wu, 1962) was previously known only from the original description and illustrations. The male of this species is externally characterized by hemitergal lobes with ventrolateral row of sensilla basiconica and an enlarged spine near apex, and also by the two small separated posteromedial lobes of tergum 5 ( Figs. 2b–c , 3a–c ). The female is externally characterized by a tongue-shaped subgenital plate ( Figs. 3f ).

When we compared this species with other regional species, we found that its hemitergal lobes are identical with A. kryzhanovskii Sivec & Zhiltzova, 1997 . In the original illustration of A. gladiata , the diagnostic enlarged subapical spine of the hemitergal lobe was not mentioned ( Wu 1962), and descriptive comparison was not conducted because of language difference. We subsequently also found these two species were collected from the same county (Jingdong = Czindun) of Yunnan Province, and the holotype of A. gladiata ( Wu, 1962) was even collected at the same locality (Dongjiafen = Dunuzjafin) as four paratypes ( 3 males and 1 female) of A. kryzhanovskii during the end of May to the beginning of June. These data indicate that the types of these two species were collected from the same field trip in the Chinese-Soviet Zoological Expedition to Southwestern China 1956, headed by Prof. Liu Tsung-lo (Institute of Entomology, Chinese Academy of Sciences in Beijing) ( Bey-Bienko, 1957). Therefore, we consider that A. kryzhanovskii is a subjective junior synonyms of A. gladiata .

Figures

FIGURE 2. Agnetina gladiata (Wu, 1962). a: labels of holotype male (left), paratype male (middle) and paratype female (right); b: terminalia of holotype male, dorsal view; c: terminalia of holotype male, lateral view.

FIGURE 3. Agnetina gladiata (Wu, 1962). a: terminalia of paratype male, dorsal view; b: terminalia of paratype male, lateral view; c: hemitergite, lateral view; f. terminalia of allotype female of A. gladiata, d–e, g: Agnetina kryzhanovskii Sivec & Zhiltzova, 1997, syn. nov. d: original illustration of male terminalia, dorsal view; e: original illustration of male terminalia, lateral view; g: original illustration of paratype female.