Liroetis liui (Lee, 2016) Bezděk, 2021

Bezděk, Jan, 2021, Redefinition of Liroetis, with descriptions of two new species and an annotated list of species (Coleoptera: Chrysomelidae: Galerucinae), Acta Entomologica Musei Nationalis Pragae 61 (2), pp. 529-614 : 571-575

Liroetis liui (Lee, 2016) comb. nov.

( Figs 190 , 202 , 213 , 224–227 )

Siemssenius liui Lee, 2016: 376 (original description).

Type locality. ‘[ Taiwan:] Ilan county, Taipingshan’.

Type material examined. Pൺඋൺඍඒඉൾඌ:1 J ( Figs 224–225 ), ‘ Taiwan:Ilan (#28285) / Taipingshan ([in Chinese]) / 21.V.2016, leg. H. Lee [w, p] // Paratypus / Siemssenius / liui sp. nov. [p] J [h] / des. C.-F. Lee, 2016 [pink label, p]’ ( JBCB); 1 ♀ ( Figs 226–227 ), ‘ Taiwan:Ilan (6015) / Taipingshan ([in Chinese]) / 19.VI.2008, leg.S.-Y.Wu [w, p] // Paratypus / Siemssenius / liui sp. nov. [p] ♀ [h] / des. C.-F. Lee, 2016 [pink label, p]’ ( JBCB).

Diagnosis. Colouration. Body black, except for reddish brown elytra and abdomen.

Body length. J: 7.9 mm, ♀: 10.1 mm.

Male ( Fig. 224 ). Antennae 0.91 times as long as body. Pronotum convex, 1.69 times as wide as long, finely punctate, anterior margin slightly concave, unbordered but with indistinct traces of border near anterior angles, posterior margin straight in middle part, oblique and with two points laterally, thinly bordered, lateral margins straight and parallel in posterior two thirds, anterior third rounded and convergent, with wider border. Scutellum with several distinct punctures. Protarsomere I elongate, parallel, convergent at base. Metatibial spur short, wide, with rounded apex.

Aedeagus ( Fig. 190 ). Median lobe of aedeagus 3.65 times as long as wide, with apical process very short and narrow, then suddenly widened. Lateral view: median lobe straight in middle part, apical part slightly bent; lateral elevation large, rounded, placed in anterior sixth of aedeagus length. Dorsal process 4.39 times as long as wide, 0.83 times as long as median lobe, wide, apical half lanceolate, basal half narrow, subparallel. Lateral view: dorsal process very wide in apical half, narrow in basal half.

Female ( Fig. 226 ). Posterior margin of last abdominal ventrite straight in middle. Sternite VIII wide, posterior margin rounded with shallow emargination in middle, surface laterally with two elevated plates, long setae accumulated along posterior and inner margins of those plates, tignum short and wide, 0.25 times as long as sternite VIII ( Fig. 213 ). Spermatheca with poorly developed nodulus, cornu C-shaped with sharp apex, spermathecal duct long, slightly bent ( Fig. 202 ).

Differential diagnosis. Having black body and reddish brown elytra and abdomen, Liroetis liui is very similar to other Taiwanese species L. jungchani , L. rufipennis , L. tsoui , and L. yuae . 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. liui has apical process extremely short, lateral elevation large, subtriangular with rounded anterior margin, dorsal process widely lanceolate and in lateral view distictly extended subapically ( Fig. 190 ).

Host plant. Caprifoliaceae : Lonicera acuminata Wall. (Lൾൾ 2016).

Distribution. Taiwan (Lൾൾ 2016).

Figures

Figs 189–192. Aedeagus of Liroetis, dorsal and lateral views. 189 – L. jungchani (Lee, 2016); 190 – L. liui (Lee, 2016); 191 – L. metallipennis (Chûjô, 1962); 192 – L. modestus (Weise, 1922). Scale 0.5 mm.

Figs 197–208. 197 – Aedeagus of Liroetis yuae (Lee, 2016), dorsal and lateral views. 198–208 – Spermatheca. 198 – L. cheni (Lee, 2016); 199 – L. fulvipennis Jacoby, 1890; 200 – L. jeanvoinei (Laboissière, 1929); 201 – L. jungchani (Lee, 2016); 202 – L. liui (Lee, 2016); 203 – L. metallipennis (Chûjô, 1962); 204 – L. modestus (Weise, 1922); 205 – L. nigriceps (Laboissière, 1929); 206 – L. rufipennis (Chûjô, 1962); 207 – L. tsoui (Lee, 2016); 208 – L. yuae (Lee, 2016). Figs 198, 201–203, 207–208 reproduced from Lൾൾ (2016). Scales: 0.5 mm for Fig. 197, 0.25 mm for Figs 198–208.

Figs 209–219.Sternite VIII.209 – L. cheni (Lee, 2016); 210 – L. fulvipennis Jacoby,1890; 211 – L.jeanvoinei (Laboissière, 1929); 212 – L. jungchani (Lee, 2016); 213 – L. liui (Lee, 2016); 214 – L. metallipennis (Chûjô, 1962); 215 – L. modestus (Weise, 1922); 216 – L. nigriceps (Laboissière, 1929); 217 – L. rufipennis (Chûjô, 1962); 218 – L. tsoui (Lee, 2016); 219 – L. yuae (Lee, 2016). Figs 209, 212–214, 218–219 reproduced from Lൾൾ (2016). Scale 0.5 mm.

Figs 224–227. Liroetis liui (Lee, 2016). 224–225 – Male, paratype (7.9 mm). 224 – dorsal view; 225 – labels. 226–227 – Female, paratype (10.1 mm). 226 – dorsal view; 227 – labels.

Figs 193–196. Aedeagus of Liroetis, dorsal and lateral views. 193 – L. nigriceps (Laboissière, 1929); 194 – L. rufipennis (Chûjô, 1962); 195 – L. sulcipennis (Zhang & Yang, 2008); 196 – L. tsoui (Lee, 2016). Scale 0.5 mm.