Tinodes yangae Peng & Sun, 2022

Peng, Lang, Ge, Xin-Yu, Sun, Chang-Hai & Wang, Bei-Xin, 2022, Five new species of Tinodes (Trichoptera: Psychomyiidae) from China, Zootaxa 5196 (2), pp. 280-290 : 286

publication ID	https://doi.org/ 10.11646/zootaxa.5196.2.8
publication LSID	lsid:zoobank.org:pub:A2AE97FC-9859-47D0-BA06-4BAA3D1A6E3E
DOI	https://doi.org/10.5281/zenodo.7224646
persistent identifier	https://treatment.plazi.org/id/03EB217F-FF95-106E-FF6F-FC2FBDFF0019
treatment provided by	Plazi
scientific name	Tinodes yangae Peng & Sun
status	sp. nov.

Treatment

Tinodes yangae Peng & Sun , n. sp.

( Figs 4a–4d View FIGURE 4 )

Description: Length of each forewing 3.5–3.6 mm (n = 1). Specimens in alcohol with compound eyes black, legs and thorax dark brown, abdomen brown dorsally, pale yellow ventrally, wings light brown.

Male genitalia: In lateral view, sternum IX nearly oblong, with each anterodorsal angles produced into projections ( Fig. 4c View FIGURE 4 ). Tergum IX, segment X and horizontal part of inner branch of phallic sheath process fused into a complex, originating about halfway along upper margin of sternum IX, ( Fig. 4c View FIGURE 4 ), vertical part of inner branch of phallic sheath process paired, each with three spines apically ( Figs 4b, 4c View FIGURE 4 ); lateral branch of phallic sheath process paired and sparsely setose, each arched in lateral view and elongate tongue-shaped in dorsal view ( Figs 4b, 4c View FIGURE 4 ). Superior appendages slightly S-shaped, issuing from protrusion of sternum IX in lateral view ( Fig. 4c View FIGURE 4 ), extending dorsocaudad beyond apex of phallus ( Fig. 4b View FIGURE 4 ). Phallus tapering from base to apex, in lateral view its basal half forming angle at about 90° with distal half ( Fig. 4c View FIGURE 4 ). In dorsal view, phallic guide with apex expanded into a disc ( Fig. 4d View FIGURE 4 ), in lateral view with apex bifurcate, dorsal branch straight upwards and acute, ventral branch triangular ( Fig. 4c View FIGURE 4 ). Coxopodites ventrally fused mesally with posterior margin somewhat W-shaped in ventral view ( Fig. 4a View FIGURE 4 ); in lateral view subrectangular, each with dorsal process triangular, smooth and hairless, and ventral process rounded, setose, shorter than dorsal process ( Fig. 4c View FIGURE 4 ). Harpagones inserted between dorsal and ventral processes of coxopodite, tongue-shaped, setose and longer than dorsal processes of coxopodites in lateral view ( Fig. 4c View FIGURE 4 ).

Diagnosis: This species is similar to Tinodes eris Malicky & Sangpradub 2001 (in Malicky et al. 2001) from Thailand. However, the new species can be easily distinguished from it by the inner phallic sheath process with its base fused with the complex of tergum IX and X and the other portion free from the complex, vertical, and bifurcate.

Holotype: Male, P. R. China, Si-chuan Province : Ya-an city, Zhou-gong river, 29.5900°N, 102.5900°E, atl. 600–800 m, 8 June 1996, light trap, leg. L. Yang & X. Wang ( NJAU). GoogleMaps

Distribution: China (Si-chuan).

Etymology: The new species is named after Prof. Lianfang Yang in honor of her great contributions to the Trichoptera fauna of China.