Tinodes falcata 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 : 281-283

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.7224632
persistent identifier	https://treatment.plazi.org/id/03EB217F-FF92-106B-FF6F-FA8ABE9F06DD
treatment provided by	Plazi
scientific name	Tinodes falcata Peng & Sun
status	sp. nov.

Treatment

Tinodes falcata Peng & Sun , n. sp.

( Figs 1a–1c View FIGURE 1 )

Description: Length of each forewing 3.4–3.5 mm (n = 1). Specimen in alcohol with compound eyes black, legs and thorax brown, abdomen dark brown dorsally, pale yellow ventrally, wings light brown.

Male genitalia: In lateral view, sternum IX fan-shaped ( Fig. 1c View FIGURE 1 ). Tergum IX covered with tiny villi; nearly triangular in dorsal view ( Fig. 1b View FIGURE 1 ), boomerang-shaped in lateral view ( Fig. 1c View FIGURE 1 ). Segment X originating from anterior one-third of dorsal edges of sternum IX; membranous, anterior margins straight, narrowly stalked in lateral view ( Fig. 1c View FIGURE 1 ). Superior appendages originating from bases of segment X; clubbed, each with distal half setose in dorsal and lateral views ( Figs 1b, 1c View FIGURE 1 ). Phallic sheath process originating from phallus, consisting of paired lateral branches (lat. pha. she. pro) and unpaired inner branch (inn. pha. she. pro.); paired lateral ones slightly sigmoid in lateral view ( Fig. 1c View FIGURE 1 ), each with seven spurs scattered in middle and subterminally; unpaired inner one strongly sclerotized, slightly shorter than paired branches, distal third curved posterodorsad, with sharp tip having small fork in lateral and dorsal views ( Figs 1b, 1c View FIGURE 1 ). Phallus slightly longer than phallic sheath process, with distal half inflated about twice width of lateral paired branches of phallic sheath process in lateral view ( Fig. 1c View FIGURE 1 ). In lateral view, phallic guide (pha. gui.) with subapex widened and then divided into two branches, dorsal branch slender, curved downwards distally; ventral branch of phallic guide short, with one long bristle ( Fig. 1c View FIGURE 1 ). Coxopodites (cox.) each broadly rounded dorsally in lateral view, divided apically into large glabrous dorsal branch and short ventral one ( Figs. 1a, 1c View FIGURE 1 ); harpagones situated mesally between coxopodite branches, each nearly as long as dorsal branch, with numerous setae mostly mesal ( Figs 1a, 1c View FIGURE 1 ).

Diagnosis: The species is unique in the genus Tinodes by its unpaired inner branch of the phallic sheath process (inn. pha. she. pro.).

Holotype: Male, P. R. China, Zhe-jiang Province : An-ji city, Tian-huang-ping town, Da-xi village, Hengkeng-wu, 30.4706°N, 119.6619°E, alt. 290 m, 24 May 2017, light trap, leg. C. Sun & Y. Hu ( NJAU). GoogleMaps

Distribution: China (Zhe-jiang).

Etymology: The Latin adjective falcatus, -a, -um means “falcate, referring to the shape of the unpaired branch of the phallic sheath process in left lateral view.