Lochmaea smetanai Kimoto, 1996

Lee, Chi-Feng, 2019, The genus Lochmaea Weise, 1883 in Taiwan: results of taxonomic expeditions by citizen scientists (Coleoptera, Chrysomelidae, Galerucinae), ZooKeys 856, pp. 75-100 : 88-90

Lochmaea smetanai Kimoto, 1996 Figs 8, 9, 10 A– 10C

Lochmaea smetanai Kimoto, 1996: 30.

Type material.

Holotype ♂ (NMNS), labeled: "TAIWAN Taichung Hsien / Hsuehshan, Hsuehshan / Main Peak 3650 m / 9.V.91 A. Smetana [T73] // Lochmaea / smetanai / Kimoto, n. sp. [h] / Det. S. Kimoto, 19 [p, w] // HOLOTYPE [p, r] // 2279-3 [p, w]".

Other material examined

(n = 233). Hualien: 3♂♂, 4♀♀ (TARI), Chilai North Peak (奇萊北峰), 3600 m, 21.X.2017, leg. J.-C. Chen; Miaoli: 4♂♂, 10♀♀ (TARI), Chungpaping (中霸坪), 3300 m, 23.VI.2018, leg. J.-C. Chen; 4♂♂, 4♀♀ (TARI), Tsuichih Lodge (翠池山莊), 3550 m, 2.IX.2014, leg. J.-C. Chen; 19♂♂, 19♀♀ (TARI), same but with "leg. T.-H. Lee"; Nantou: 2♂♂, 3♀♀ (TARI), Chilai South Peak (奇萊南峰), 3350 m, 2.IX.2017, leg. J.-C. Chen; 6♂♂, 6♀♀ (TARI), Hehuanshan (合歡山), 3400 m, 26.VII.2014, leg. J.-C. Chen; 1♂, 4♀♀ (TARI), same locality, 30.VII.2014, leg. T.-H. Lee; 21♂♂, 13♀♀ (TARI), same but with "leg. C.-F. Lee"; 5♀♀ (TARI), same locality, 9.VIII.2014, leg. M.-H. Tsou; 3♂♂, 2♀♀ (TARI), Hehuan Eastern Peak (合歡東峰), 3420 m, 23.VII.2015, leg. J.-C. Chen; 2♂♂, 5♀♀ (TARI), same but with “22.VI.2016”; 7♂♂, 5♀♀ (TARI), Hehuan Western Peak (合歡西峰), 3145 m, 23.VI.2016, leg. J.-C. Chen; 5♂♂, 2♀♀ (TARI), Hsiaochilai (小奇萊), 3150 m, 23.IX.2016, leg. J.-C. Chen; 4♂♂, 3♀♀ (TARI), same but with “22.X.2016”; 1♂, 1♀ (TARI), Kunyang (昆陽), 3050 m, reared from larvae, 23.VI.2009, leg. C.-F. Lee; 1♂, 1♀ (NMNS), Yuanfeng (鳶峰), 2750 m, 7.VIII.-11.IX.2001, leg. C.-S. Lin & W.-T. Yang; 2♂♂, 1♀ (NMNS), same but with “16.X.-14.XI.2001”; 1♂ (NMNS), same but with “12.III.-9.IV.2002”; 1♀ (NMNS), same but with “9.VII.-13.VIII.2002”; 1♂ (NMNS), same but with “13.VIII.-10.IX.2002”; 1♂, 1♀ (NMNS), same but with “17.IV.-7.V.2003”; 2♂♂ (NMNS), same but with “11.VI.-8.VII.2003”; 1♂ (NMNS), same but with “4.XI.-15.XII.2003”; 1♂ (NMNS), same but with “5.X.-16.XI.2004”; 1♂ (NMNS), same but with “8.XI.-8.XII.2005”; 1♀ (NMNS), same but with “2–30.X.2007”; 1♀ (TARI), same locality, 29.VII.2014, leg. C.-F. Lee; 1♀ (TARI), same locality, 9.IX.2014, leg. C.-F. Lee; 3♂♂, 2♀♀ (TARI), same locality, 9.VIII.2014, leg. M.-H. Tsou; Taichung: 3♀♀ (TARI), Chungyangchienshan (中央尖山), 3705 m, 29.VII.2018, leg. J.-C. Chen; 1♂ (TARI), Hsuehshan (雪山), 3850 m, 1.IV.2010, leg. W.-B. Yeh; 1♂ (TARI), same but with “18.VI.2010”; 1♂, 1♀ (TARI), same but with “10.VI.2011”; 3♂♂, 1♀ (TARI), same locality, 3.IX.2014, leg. J.-C. Chen; 1♂, 2♀♀ (TARI), Nanhupeishan (南湖北山), 3536 m, 26.VII.2018; 7♂♂, 4♀♀ (TARI), Nanhutashan (南湖大山), 3700 m, 23.VII.2016, leg. J.-C. Chen; 3♂♂, 5♀♀ (TARI), Shengmacheng (審馬陣), 3200 m, 26.V.2018, leg. J.-C. Chen; 1♂ (TARI), same but with “26.VII.2018”.

Diagnosis.

Lochmaea smetanai Kimoto cannot be distinguished from L. jungchani sp. n. based on external morphology but differs in the relatively broader median lobe, 5.7 × longer than wide (Fig. 9C) (more slender median lobe in L. jungchani sp. n., 6.8 × longer than wide (Fig. 13C)); longer elongate endophallic sclerite, 0.7 × as long as median lobe (Fig. 9C) (shorter elongate endophallic sclerite in L. jungchani sp. n., 0.5 × as long as median lobe (Fig. 13C)); apical margin of abdominal ventrite V in females with a median angular notch (Fig. 9I) (narrow notch margined with longitudinal ridges (Fig. 13I) in L. jungchani sp. n.).

Redescription.

Length 5.7-6.4 mm, width 2.9-3.5 mm. General color (Fig. 8 A–C) reddish brown, but vertex and pronotum greenish brown, with median longitudinal dark band on pronotum, each elytron greenish brown except suture and lateral margins. Antennae filiform in males (Fig. 9A), length ratios of antennomeres I–XI 1.0: 0.5: 0.9: 0.8: 0.7: 0.7: 0.7: 0.6: 0.6: 0.6: 0.8, length to width ratios of antennomeres I–XI 2.6: 2.0: 3.1: 2.8: 2.7: 2.6: 2.6: 2.5: 2.6: 2.5: 3.3; a little smaller in females (Fig. 9B), length ratios of antennomeres I–XI 1.0: 0.6: 0.7: 0.7: 0.7: 0.6: 0.6: 0.6: 0.5: 0.5: 0.7, length to width ratios of antennomeres I–XI 2.7: 2.4: 2.6: 2.5: 2.2: 2.3: 2.3: 2.1: 2.0: 2.0: 2.5. Pronotum transverse, 1.5 × wider than long, disc with dense, extremely coarse punctures, and one pair of lateral depressions; lateral margins strongly narrowed basally; margins concave basally and apically. Elytra longitudinal and broadly rounded, 1.4 × longer than wide; disc with random, dense, and extremely coarse punctures. Apical margin of abdominal ventrite V in males straight, with median notch bearing short, oblique ridges at margin (Fig. 9H). Ventrite V in females with shallow, wide, median, angular notch (Fig. 9I). Median lobe (Fig. 9C, D) slender, 5.7 × longer than wide, apically tapering from apical 1/3, parallel-sided from base to apical 1/3; opening elongate, located on right, starting from apical 1/7; in lateral view strongly curved, slightly oblique; internal sac with one elongate sclerite, 0.7 × as long as median lobe, one additional sclerite located near base of elongate sclerites, base wide and bifurcate, apically membranous. Gonocoxae (Fig. 9F) elongate, separated, weakly sclerotized except apical parts; apical parts elongate, bearing small, scattered setae and four long setae at apices. Ventrite VIII (Fig. 9E) longitudinal and well sclerotized; apex rounded; abruptly broader at apical 1/5, with paired cluster of long setae near middle, disc bearing scattered, tiny setae along apical margin; spiculum long and narrow. Receptacle of spermatheca (Fig. 9G) strongly swollen; pump slender and strongly curved; proximal spermathecal duct deeply inserted into receptacle, broad but short.

Variability.

Some specimens have reduced punctation on the pronotum. Different individuals have different color patterns from brown to dark reddish brown (Fig. 8 D–F).

Host plants.

Ericaceae : Rhododendron pseudochrysanthum Hayata (Fig. 10 A–C).

Biology.

Some populations Lochmaea smetanai Kimoto are sympatric with L. lesagei Kimoto or L. tsoui sp. n. when microhabitats are stable at high altitudes (at or above 3000 m). For example, larvae of this species were collected in Kunyang (昆陽) (3050 m) with those of L. tsoui sp. n. (see biology to L. tsoui sp. n. for details). Adults might be long-lived, based on their occurrence in the field from April to December.

Distribution.

Central Taiwan, including Miaoli, Taichung, Nantou, and Hualien Counties (Fig. 5B).