Tarika lamviena Volynkin & Černý, 2025, sp. n.

Tarika lamviena sp. n. https://zoobank.org/ urn:lsid:zoobank.org:act: A61355D5-F5A0-47BD-9740-CB9A93EA821A (Figs 40, 41, 102, 103) Type material. Holotype (Figs 40, 102): male, “ XII.2013 | South Vietnam | Lâm Đồng Province, | Lạc DƯƠng District, | Tay Nguyen Highlands, | Bidoup Núi Bà NP, | local collector leg. | Coll. A. V. Volynkin ” / “ Slide | AV6829 ♂ ” / A. Volynkin ” (CAV). Paratype. VIETNAM: male, same data as in holotype, gen. slide No.: AV9623 ♂ (CAV). Note. The relationships of T. lamviena sp. n. within the genus are unclear as its external appearance and the male genital capsule structure, namely the distal saccular process and vinculum shapes, are similar to those of the T. varana species-group therefore T. lamviena sp. n. probably represents a lineage intermediate between the T. varana and T. nigropoda species-groups. Diagnosis. The forewing length is 15.0–15.5 mm in males. In the T. nigropoda species-group, the Thai T. inthanona sp. n. is reminiscent of T. lamviena sp. n. but the male of the latter is somewhat smaller and has creamy white ground colour of both wings, which is pale beige in T. inthanona sp. n. The male genital capsule of T. lamviena sp. n. is distinguished from other species in the species-group by the broader vinculum having a broader and deeper medial depression, and the robust, claw-shaped distal saccular process. The phallus of T. lamviena sp. n. is markedly longer than in similar congeners (in proportion to the genital capsule) and has a reduced, protrusion-like carinal process. The vesica configuration of T. lamviena sp. n. is most similar to the Himalayan T. spinoapex having fundamentally different external appearance and genital capsule structure. Compared to T. spinoapex, the vesica of T. lamviena sp. n. lacks the subbasal diverticulum, has broader distal-proximal and distal-medial diverticula situated on the common base (in T. spinoapex the distal-proximal diverticulum originates from the main chamber of the vesica), and its distal diverticulum is markedly longer, broader, and bears a larger, crest-like serrulate cornutus, which is semiglobular in T. spinoapex. The female is unknown. Distribution. The new species is currently known only from its type locality in Southern Vietnam (Lâm Viên Plateau). Etymology. The specific epithet is derived from the Lâm Viên Plateau, where the new species is found. The name is a noun in the nominative singular in apposition.