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| Zhangixalus matsuii Ninh, Hoang, Orlov, Ichioka, Ziegler & Nguyen, 2026 |
Abstract
A new treefrog species, Zhangixalus matsuii sp. nov., is described from Y Ty Commune, Lao Cai Province, northwestern Vietnam. The new species is diagnosed by the following characteristics: size medium (SVL 35.5–37.6 mm in males); dorsum olive green with many brown spots; axilla and groin grey with cream spots along flank; throat cream with grey spots; belly and ventral surface of hind limbs red-orange. The genetic distance between the new species and other species of Zhangixalus ranges from 2.5% to 12.9% (16S rRNA gene fragment). The new discovery brings the species number of Zhangixalus in Vietnam to 11.
Key words: Genetic divergence, green treefrogs, northwestern Vietnam, Zhangixalus matsuii sp. nov.
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| Adult male holotype (IB A.6585) of Zhangixalus matsuii sp. nov. from Y Ty Commune, Lao Cai Province, northwestern Vietnam in life. A. Dorsal view; B. lateral view; C. ventral view; D. ventral side of right foot; E. ventral side of right hand. |
Zhangixalus matsuii sp. nov.
Hoa Thi Ninh, Chung Van Hoang, Nikolai Orlov, Yukio Ichioka, Thomas Ziegler and Tao Thien Nguyen. 2026. A New Species of Zhangixalus (Anura, Rhacophoridae) from Lao Cai Province, Vietnam. ZooKeys. 1294: 109-130. DOI: doi.org/10.3897/zookeys.1294.203393 [06 Oct 2026]