Review of the genus Siemssenius Weise, 1922 (Coleoptera: Chrysomelidae: Galerucinae) from Taiwan, with descriptions of five new species Author Lee, Chi-Feng text Zootaxa 2016 4158 3 367 384 journal article 10.11646/zootaxa.4158.3.4 12a16235-46e5-476e-85e2-068df3c490a9 1175-5326 258327 09EB32FE-9637-479F-8644-972A86B64C8D Siemssenius jungchani Lee , sp. nov. ( Figs 7 A–7F) Type locality. Pingtung county , Tahanshan (大漢山), 22°24’27”N , 120°45’23”E , 1400 m . Type material (n= 5). Holotype ♂ ( TARI ): Pingtung : Tahanshan (大漢山), 19.V.2015 , leg. Y.- T. Chung . Paratypes : 1♀ ( TARI ), same locality, 3.V.2011 , leg. J.- C. Chen ; 1♂ ( TARI ), same locality, 31.III.2012 , leg. W.- C. Liao ; 1♂ ( TARI ), Jinshuiying (浸水營, = Tahanshan), 12.IV.2012 , leg. C.- F. Lee ; 1♀ ( TARI ), same locality, 26.VI.2012 , leg. Y.- T. Chung. Description. Aedeagus concave and narrow, sides subparallel; apico-lateral angles obtusely angulate, wide in lateral view, bases of apico-lateral angles smooth; apical margin with a long, broad median tube-like process, wide in lateral view, apex slightly and medially depressed; dorsal process subapically and slightly swollen in dorsal and lateral views, apex pointed in lateral view ( Figs 7 A–7B). Ventrite V not modified in female, apical margin narrowly rounded ( Fig. 7 C). Gonocoxae reduced. Ventrite VIII ( Fig. 7 D) heart-shaped, with extremely short spiculum, with scarce elongate setae along apical margins of triangulate processes. Tergite VIII ( Fig. 7 E) with apex rounded and with sparse setae on disc. Receptacle of spermatheca ( Fig. 7 F) weakly swollen, barely separated from pump, pump much narrower and longer, sharply curved; proximal spermathecal duct long and narrow. Diagnosis. Siemssenius jungchani sp. nov. is similar to S. yuae sp. nov. in possessing the smooth bases of apico-lateral angles of aedeagus, and the rounded apex of the abdominal tergite VIII. But S. jungchani sp. nov. has the subtruncate and slightly depressed apex of broad median tube-like process of apical margin of aedeagus (rounded apex of the slender median tube-like processes in S. yuae sp. nov. ) ( Figs 7 A, 7B, 11A, 11B). Host plant. Unknown. Etymology. This new species is named after Mr. Jung-Chan Chen, who is a member of TCRT and the first to collect this new species. Distribution. Only known from the type locality, Tahanshan (大漢山), lowlands in southern Taiwan ( Fig. 4 ).