Tinodes xuzhouorum 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 : 283

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.7224640
persistent identifier	https://treatment.plazi.org/id/03EB217F-FF90-106B-FF6F-FE7FBEDD0155
treatment provided by	Plazi
scientific name	Tinodes xuzhouorum Peng & Sun
status	sp. nov.

Treatment

Tinodes xuzhouorum Peng & Sun , n. sp.

( Figs 2a–2c View FIGURE 2 )

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, sternum IX with each posteroventral corner produced into blunt projection with indistinct fusion lines ( Fig. 2c View FIGURE 2 ). Tergum IX originating from upper margins of sternum IX, forming upright, narrow stalk in lateral view ( Fig. 2c View FIGURE 2 ). Segment X incompletely fused with tergum IX, fusion line visible in lateral view ( Fig. 2c View FIGURE 2 ). Superior appendages originating from lateral bases of tergum IX, slightly sinuate, and tapering from bases to apices, strongly setose in lateral view ( Fig. 2c View FIGURE 2 ). Phallic sheath process (pha. she. pro.) originating from sternum IX; paired, with branches not of equal length, each with five spurs scattered in distal half in dorsal view ( Fig. 2b View FIGURE 2 ). Phallus with sclerotized ejaculatory duct curved downwards at 90° in lateral view ( Fig. 2d View FIGURE 2 ). In lateral view, phallic guide two-branched, dorsal branch twice length of ventral branch, both slender and strongly sclerotized ( Fig. 2c View FIGURE 2 ). Coxopodites ventrally with basal halves fused in ventral view ( Fig. 2a View FIGURE 2 ), sub-trapezoid in lateral view ( Fig. 2c View FIGURE 2 ). Harpagones situated between coxopodite branches, curved ventrad, gradually narrowing from bases to apices, setose ( Fig. 2c View FIGURE 2 ).

Diagnosis: This species is similar to Tinodes charmi Malicky 2009 from Malaysia. However, the new species can be easily distinguished by the following: (1) the superior appendages are longer than the phallus, rather than shorter than the phallus as in T. charmi ; (2) the ejaculatory duct protrudes from the subapex of the phallus, but issuing from the base in T. charmi ; and (3) tergum IX and the superior appendages form right angles in lateral view, rather than being parallel to each other in T. charmi .

Holotype: Male, P. R. China, Si-chuan Province : Chong-zhou city, Ji-guan-shan town, An-zi-he Nature Reserve, Shao-yao-gou conservation station, 30.8018°N, 103.2193°E, alt. 1540 m, 25 Aug 2016, light trap, leg. J. Xu & F. Zhou ( NJAU). GoogleMaps

Paratypes: P. R. China, Si-chuan Province: 1 male, same data as holotype; 1 male, Wolong Nature Reserve , 13–29 June 1989, leg. T. Nadler (Museum für Naturkunde, Berlin ( MfN)). GoogleMaps

Distribution: China (Si-chuan).

Etymology: The new species is named for a previous member of our team, Dr. Xu Ji-hua and her husband Mr. Zhou Feng. Dr. Xu contributed a lot to the caddis fauna of China, her husband helped a great deal in the collection of Trichoptera . We here extend our gratitude to them.