Tychius winkleri ( Franz, 1940 )

Jiang, Chunyan, Caldara, Roberto & Zhang, Runzhi, 2020, The genus Tychius Germar (Coleoptera: Curculionidae: Curculioninae) in China, with description of three new species, Zootaxa 4856 (1), pp. 1-62 : 28

publication ID	https://doi.org/ 10.11646/zootaxa.4856.1.1
publication LSID	lsid:zoobank.org:pub:0C2E90FC-25FD-455D-86A7-0BA8210C0A30
DOI	https://doi.org/10.5281/zenodo.4411323
persistent identifier	https://treatment.plazi.org/id/632E87E8-FFA4-FFEA-E6D5-FF51FD518634
treatment provided by	Plazi
scientific name	Tychius winkleri ( Franz, 1940 )
status

Treatment

25. Tychius winkleri ( Franz, 1940) View in CoL

( Figures 77–80 View FIGURES 73–90 , 199–202 View FIGURES 197–220 , 285–286 View FIGURES 275–306 , 328 View FIGURES 307–339 , 341, 353 View FIGURES 340–363 , 384 View FIGURES 380–387 , 419 View FIGURES 397–431 , 448 View FIGURES 432–457 , 475 View FIGURES 458–484 )

Lepidotychius winkleri Franz, 1940: 15 View in CoL . Caldara, 1986: 177 ( Tychius View in CoL ).

Tychius carinicollis Tournier, 1874: 479 View in CoL (not Lucas, 1849). Caldara, 1986: 177.

Material examined. CHINA: Xinjiang: Tulufan (20–140 m), 24-VI-1958, leg Guang Wang (5); Tuoli, 21-VI-1955, leg Shijun Ma, Kailing Xia, Yonglin Chen (1); Shanshan (22–550 m), 20-VI-1958, leg Changqing Li (1); Wushi, 18-VII-1958, leg Shuyong Wang (1) .

Redescription. Length 2.20–2.60 mm ( Fig. 77–80 View FIGURES 73–90 ). Vestiture on dorsum uniformly grayish to pale brown, paler on interstria 1 and sides of elytra. Rostrum ( Fig. 199–202 View FIGURES 197–220 ) curved (Rl/Rw 5.33–5.42 in male, 5.25–5.83 in female; Rl/Pl 0.77–0.85 in male, 0.84–0.93 in female), at apex tapered in dorsal view and subparallel-sided in lateral view, distinctly sexually dimorphic. Pronotum (Pw/Pl 1.13–1.23) curved at sides from base to apex, slightly narrower than elytra (Ew/Pw 1.20–1.30). Elytra suboval (El/Ew 1.40–1.55). Femora ( Fig. 285–286 View FIGURES 275–306 ) unarmed, tibiae ( Fig. 328 View FIGURES 307–339 ) without sexual characters. Third tarsomere wider than second tarsomere ( Fig. 341 View FIGURES 340–363 ). Claws ( Fig. 353 View FIGURES 340–363 ) with small medial teeth as long as half of claw, fastened to claw in basal half. Male genitalia: body of penis ( Fig. 384 View FIGURES 380–387 ) large in basal 2/3, then distinctly abruptly narrow to apex, with small blunted tip ( Fig. 419 View FIGURES 397–431 ), nearly as long as apodeme. Female genitalia: spermatheca see Fig. 448 View FIGURES 432–457 ; spiculum ventrale ( Fig. 475 View FIGURES 458–484 ) with thin arms spaced in basal third but distinctly narrowing to middle, then completely joined to apex.

Remarks and comparative notes. This species is very closely related to T. urbanus , from which it differs by the shape of the rostrum and the aedeagus.

Biology. This species lives on Alhagi pseudalhagi (M. Bieb.) Desv. ex B. Keller & Shap. in Central Asia (Karasjov, 1994).

Distribution. This species was previously known from southern Russia, the Caucasus, Egypt and western to central Asia. New record from China (XIN).