The genus Clerotalia Jacoby of Taiwan (Coleoptera: Chrysomelidae: Galerucinae) Author Lee, Chi-Feng text Zootaxa 2018 4420 3 357 378 journal article 29162 10.11646/zootaxa.4420.3.3 40bf368d-78aa-4ac7-bc18-a23efd58bfc2 1175-5326 1455335 06B3657A-54FB-46CA-8DBA-880832977373 Clerotilia cheni sp. nov. ( Figs 1C , 2A–2C , 3 ) Types (n= 19). Holotype ♂ ( TARI ): Ilan : Tsuifenghu ( ẸḌḀ ), 3.VII.2010 , leg. M.- H. Tsou . Paratypes . 4♀♀ ( TARI ), same data as holotype ; 1♂ ( TARI ), same locality, 30.V.2009 , leg. H.- J. Chen ; 1♀ (TARI), Suchi ( ƋŢ ), 1.VIII.2009 , leg. M.-H. Tsou; 1♂ , 3♀♀ ( TARI ), Suyuanyakou ( ÙAE ḎD ), 25.VI.2017 , leg. W.- B. Yeh ; 1♀ (TARI), Tataung ( ƛặ ), 11.VIII.2014 , leg. J.-C. Chen; Taichung : 5♂♂ , 2♀♀ ( TARI ), Shengkuangshan ( ṞKNJ ), 23.VII.2016 , leg. J.- C. Chen. Description. Length 5.1–6.4 mm , width 1.9–2.4 mm . General color ( Figs 2A–2C ) yellowish brown; head dark brown, including antennae, but occiput metallic green; tibiae, tarsi, and apices of femora darker; elytra, pronotum, and hypomeron metallic green; metasternum sometimes with metallic green reflection. Occiput with reticulate microsculpture. Antennae filiform in males ( Fig. 3A ), antennomeres V-VII moderately broader, length ratios of antennomeres I–XI 1.0: 0.4: 0.7: 0.6: 0.7: 0.7: 0.8: 0.7: 0.6: 0.6: 0.7, length to width ratios of antennomeres I–XI 3.8: 2.7: 3.4: 2.9: 3.0: 3.2: 3.9: 3.8: 3.7: 3.7: 4.1; slender in females ( Fig. 3B ), length ratios of antennomeres I–XI 1.0: 0.4: 0.6: 0.6: 0.6: 0.6: 0.6: 0.5: 0.5: 0.5: 0.6, length to width ratios of antennomeres I–XI 4.6: 2.5: 3.5: 3.6: 3.9: 3.7: 4.0: 3.4: 3.5: 3.2: 3.7. Pronotum transverse, 1.4x wider than long, disc convex without reticulate microsculpture, and with sparse, fine and coarse punctures; lateral margin narrower near base; apical margin slightly concave; basal margin subtruncate. Elytra elongate and parallel-sided, 2.0x longer than wide; disc with reticulate microsculpture and dense, coarse punctures. Tarsomeres I of front and middle legs swollen in males. Penis ( Figs 3C–3D ) extremely slender, 11.3x longer than wide; narrower apically, apex rounded; tectum elongate and well sclerotized, apical margin truncate; slightly curved at basal 1/ 3 in lateral view, ventral surface with minute spines along lateral margins of subapical surface; ventral surface well sclerotized; endophallic sclerite complex composed of three sclerites, apical sclerite small and apically tapering; medial sclerite curved and subapically expanded; basal sclerite longest, apex trilobed, median lob apically tapering. Gonocoxae ( Fig. 3E ) narrowly connected at middle; apices truncate, each gonocoxa with eight setae along outer margin from apex to apical 1/4. Ventrite VIII ( Fig. 3F ) transverse and weakly sclerotized; with dense, short setae along apical surface; spiculum extremely slender. Receptacle of spermatheca ( Fig. 3G ) a little broader than pump; pump shallowly inserted into receptacle, separated into two parts, anterior part with transverse depressions, posterior part narrower apically, strongly curved; proximal spermathecal duct shallowly inserted into receptacle, elongate and broad. Diagnosis. Adults of Clerotilia cheni sp. nov. are similar to those of C. jungchani sp. nov. with yellowish brown body, metallic green elytra and occiput, but the former species possesses a metallic green pronotum, black tibiae, tarsi, and apices of femora (yellow pronoutm and legs in C. jungchani ); strongly widened antennae (antennomeres III-VI less than 3.5 times longer than wide) and straight tibiae of middle legs in males (weakly widened antennae (antennomeres III-VI more than 4.0 times longer than wide and curved tibiae of middle legs in males of C. jungchani ). The aedeagi of males of C. cheni and C. jungchani are characterized by the presence of tiny spines on the lateral or ventral discs. In males of C. cheni sp. nov. , aedeagi possess sparse tiny spines on ventral disc and small apical sclerite and widened apex of middle sclerite of endophallic sclerite complex, apex directed anteriorly whereas those of C. jungchani sp. nov. possess sparse, tiny spines on the lateral disc, tapering apex of the middle sclerite and absence of an apical sclerite of the endophallic sclerite complex, which is recurved ventrally at apex. Etymology. This new species is dedicated to Hou-Jay Chen, a member of TCRT and the first to collect this new species. Food plant. Rhamnaceae : Rhamnus nakaharae (Hayata) Hayata ( Fig. 1A ). Distribution. Northeast Taiwan (Ilan and eastern Taichung Counties) ( Fig. 4 ).