Tinodes lini 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 : 287

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.7224648
persistent identifier	https://treatment.plazi.org/id/03EB217F-FF94-106F-FF6F-FF32BCCD0295
treatment provided by	Plazi
scientific name	Tinodes lini Peng & Sun
status	sp. nov.

Treatment

Tinodes lini Peng & Sun , n. sp.

( Figs 5a–5d View FIGURE 5 )

Description: Length of each forewing 3.4–3.5 mm (n = 2). Specimens in alcohol with compound eyes black, other parts brown to light brown.

Male genitalia: In lateral view, anterolateral and anteroventral margins of sternum IX produced anterolaterad into slender protrusions and anteroventrad as obtuse process, respectively ( Fig. 5c View FIGURE 5 ). Tergum IX and segment X completely fused with inner branch of phallic sheath process, forming complex, originating from upper margins of sternum IX in lateral view ( Fig. 5c View FIGURE 5 ); in dorsal view, complex with apex bifurcate and with 9 spurs along each side ( Fig. 5b View FIGURE 5 ). Paired lateral branch of phallic sheath processes in lateral view elongate, tongue-shaped, setose apically ( Fig. 5c View FIGURE 5 ), in dorsal view posterior margin having deep U-shaped incision ( Fig. 5d View FIGURE 5 ). Superior appendages with bases fused with anterolateral protrusion of sternum IX ( Fig. 5c View FIGURE 5 ), in lateral view extending dorsocaudad to level of distal end of phallus and inferior appendages, tapering slightly from basal 1/4 to apex; in dorsal view with narrow base and then slightly diverging, each densely setose ( Fig. 5b View FIGURE 5 ). Phallus tubular, distal half slenderer than basal half in lateral view ( Fig. 5c View FIGURE 5 ). Phallic guide pincer-like in lateral view ( Fig. 5c View FIGURE 5 ), with a pair of dorsal branches closely parallel with each other, curved downwards, and ventral branch directed caudoventrad and bearing three long bristles. Coxopodites in lateral view each subrectangular with dorsal process less hairy, slender ( Fig. 5c View FIGURE 5 ); in ventral view coxopodites subtriangular, their inner margins separated by sclerotized groove, originating halfway from base of tongue-shaped lobe connecting them ( Fig. 5a View FIGURE 5 ). Harpago of each inferior appendage inserted underneath dorsal branch of coxopodite, setose; in lateral view with upper margin curved slightly upwards beyond basal convexity and lower margin straight ( Fig. 5c View FIGURE 5 ); in ventral view triangular ( Fig. 5a View FIGURE 5 ).

Diagnosis: This species is similar to Tinodes dactringa Johanson & Oláh 2008 , from Vietnam, in having a ventral lobe connecting the coxopodites basally. However, the new species can be easily distinguished from it in that: (1) the phallic guide has a pair of dorsal branches closely parallel with each other (forming a pincer in Tinodes dactringa ); (2) the ventral lobe between the coxopodites is rectangular with rounded corners, in ventral view extending slightly beyond the ventromesal apices of the coxopodites (the ventral lobe with acute posterolateral angles slightly produced laterally and extending far beyond the ventromesal apices of the coxopodites in Tinodes dactringa ).

Holotype: Male, P. R. China, Gui-zhou Province : Zun-yi city, Mei-tan county, Hei-wu-tan, 27.5381°N, 107.4961°E ,, alt. 793 m, from 16 Sept to 26 Sept 2020, Malaise trap, leg. X. Lin ( NJAU). GoogleMaps

Paratypes: 1 male, P. R . China, Jiang-su Province: Ju-rong city, Bao-hua Mountain National Forest Park, creek beside the north gate uphill, 32.1342°N, 119.0858°E, alt. 150 m, 7 May 2019, light trap, leg. Z. Chen ( NJAU) GoogleMaps .

Distribution: China (Gui-zhou, Jiang-su).

Etymology: This new species named after Dr. Xiaolong Lin from Nankai University, Tianjin, P. R. China, in gratitude for his donation of a great amount of caddis specimens selflessly, for his valuable advice on solving problems we encountered in the phylogenetic analysis of Trichoptera , and for all his strong support for Trichoptera research.