Redefinition of Liroetis, with descriptions of two new species and an annotated list of species (Coleoptera: Chrysomelidae: Galerucinae) Author Bezděk, Jan text Acta Entomologica Musei Nationalis Pragae 2021 2021-12-31 61 2 529 614 journal article 10.37520/aemnp.2021.030 1804-6487 5821367 06FDFB43-0B61-4DA8-B260-D78ABD62756C Liroetis yuae (Lee, 2016) comb. nov. ( Figs 197, 201 , 219 , 261–264 ) Siemssenius yuae Lee, 2016: 381 (original description), 383 (key). Type locality. ‘[ Taiwan :] Nantou county , Huisunlinchang’. Type material examined. Pൺඋൺඍඒඉൾඌ: 1 J ( Figs 261–262 ), ‘ Taiwan : Nantou / Huisunlinchang ([in Chinese]) / 26.IV.2014 , leg. B.-X. Guo [w, p] // Paratypus / Siemssenius / yuae sp. nov. [p] J [h] / des. C.-F. Lee, 2016 [pink label, p]’ ( JBCB ); 1 ♀ ( Figs 263–264 ), ‘ Taiwan : Nantou / Huisunlinchang ([in Chinese]) / 26.IV.2014 , leg. B.-X. Guo [w, p] // Paratypus / Siemssenius / yuae sp. nov. [p] J [h] / des. C.-F. Lee, 2016 [pink label, p]’ ( JBCB ). Additional material examined. TAIWAN : Ilan prov., Suyuan-yakou, near Pinan, 1550 m , 6.vi.1997 , 1 J, B. Herczig & L. Ronkay leg. ( HNHM ). Diagnosis. Colouration . Body black, except for reddish brown elytra and abdomen. Body length . J: 11.0 mm, ♀ : 12.9 mm . Male ( Fig. 261 ). Antennae 0.89 times as long as body. Pronotum convex, 1.73 times as wide as long, very finely punctate, anterior margin slightly concave, unbordered, posterior margin moderately rounded, thinly bordered, lateral margins slightly convergent in posterior two thirds, anterior third rounded and more distinctly convergent, with wider border. Protarsomere I subparallel in apical two thirds, convergent basally. Metatibial spur wide, flat, with rounded apex. Figs 250–256. Liroetis sulcipennis (Zhang & Yang, 2008) , male, paratype (9.4 mm). 250 – dorsal view; 251 – lateral view; 252 – ventral view; 253 – apex of abdomen; 254 – labels; 255 – head and pronotum; 256 – elytron, lateral view. Figs 257–260. Liroetis tsoui (Lee, 2016) . 257–258 – Male, paratype (10.0 mm). 257 – dorsal view; 258 – labels. 259–260 – Female, paratype (11.1 mm). 259 – dorsal view; 260 – labels. Aedeagus ( Fig. 197 ). Median lobe of aedeagus 5.24 times as long as wide; apical tenth narrow, parallel, with rounded apex, extended in second tenth, rest wide, subparallel, sides slightly subparallel. Lateral view: median lobe bisinuate; lateral elevation triangular, placed in anterior fifth of aedeagus length. Dorsal process narrow, 8.28 times as long as wide, 0.76 times as long as median lobe; apical half lanceolate and slightly wider, apex triangular and sharp, basal half parallel. Lateral view: dorsal process widely regularly rounded, apex sharp. Female ( Fig. 263 ). Antennae shorter, 0.66 times as long as body. Protarsomeres narrower than in males. Metatibial spur absent. Sternite VIII with rounded posterior margin with shallow emargination in middle, surface laterally with two elevated plates, long setae accumulated along posterior and inner margins of those plates, tignum short, 0.20 times as long as sternite VIII ( Fig. 219 ). Spermatheca with poorly developed nodulus, cornu C-shaped, narrow, apical part longer than basal part, spermathecal duct bent ( Fig. 201 ). Differential diagnosis. Having black body and reddish brown elytra and abdomen, Liroetis jungchani is very similar to other Taiwanese species L. jungchani , L. liui , L. rufipennis , and L. tsoui . These species can be reliably identified only based on the structure of aedeagus ( Figs 189–190 , 194, 196–197 ). Median lobe of aedeagus of L. yuae has apical process sharp in lateral view, lateral elevation widely subtriangular, dorsal process narrow, slightly lanceolate and in lateral view not extended subapically ( Fig. 197 ). Distribution. Taiwan (Lൾൾ 2016, present paper).