Pyrrhalta lucka, Bezděk & Lee, 2019

Bezděk, Jan & Lee, Chi-Feng, 2019, Revision of Pyrrhalta (Coleoptera: Chrysomelidae: Galerucinae) species with maculate elytra, Zootaxa 4664 (1), pp. 518-534 : 528-530

Pyrrhalta lucka sp. nov.

( Figs 5 , 9–10, 15, 20 , 23 , 34 )

Type locality. Laos, Houa Phan prov. , Ban Saluei → Phou Pane Mt., 20°12–13.5´N 103°59.5´– 104°01´E .

Types. Holotype: ♂, “Laos-NE, Houa Phan prov. , / 20°12–13.5´N 103°59.5´– 104°01´E, / Ban Saluei → Phou Pane Mt., / 1340–1870 m, 2–22.vi.2011, / Vít Kubáň & Lao coll. Lgt. [w, p] // Primary mountain forest, / at light + individual collecting, / Laos 2008 Expedition / National Muzeum Prague, / Czech Republic [w, p]” ( NMPC) . Paratypes: LAOS: 4 ♂♂ 15 ♀♀, same labels as holotype ( NMPC, 1 ♂ 1 ♀ TARI) ; 1 ♀, “LAOS – NE; HUA PHAN prov.; / BAN SALUEI; Phu Phan Mt. ; / 20°15´N 104°02´E; 1500–2000m; / J. Bezděk leg.; 26.iv–11.v.2001 [w, p]” ( JBCB) ; 2 ♂♂ 7 ♀♀, “NE LAOS, Hua Phan prov. / Ban Saluei, Phou Pan ( Mt. ) / ~ N20°12´E104°01´/ 1300– 1900m, 3–30.iv.2014 / C. Holzschuh leg. [w, p] // BMNH{E} / 2015-38 / C. Holzschuh [w, p]” ( BMNH) ; 2 ♀♀, “LAOS-NE, Houa Phan prov. / 20°12–13.5´N, 103°59.5-104.01´E, / Ban Saluei → Phou Pane Mt. , / 1340–1870m, 22.iv–15.v.2008 / Vít. Kubáň & Lao coll. leg. [w, p] // Primary mountain forest, / individual collecting. / Laos 2008 Expedition / National Museum Prague, / Czech Republic [w, p]” ( NMPC) ; 58 ♂♂ 40 ♀♀, “NE LAOS, Hua Phan prov. / Ban Saluei, Phou Pan ( Mt. ) / ~ N20°12´E104°01´/ 1300–1900m, 3–30.iv.2014 / C. Holzschuh leg. [w, p] // B. M. 2015-38 / C. Holzschuh [w, p]” ( BMNH) ; 1 ♂ 4 ♀♀, “NE LAOS, Hua Phan prov. / Ban Saluei, Phou Pan ( Mt. ), / N20°12´E104°01´, / 1300–1900m, / 11.iv–15.v.2012 [w, p] // BMNH{E} / 2012-14 / C. Holzschuh [w, p]” ( BMNH) ; 3 ♂♂ 4 ♀♀, “ Collection / Naturhistorisches / Museum Basel [w, p] // LAO, Phongsaly prov., / 21°41–2´N 102°06-8´E, / 28.v–20.vi.2003, / PHONGSALY env., / ~ 1500m, Vít Kubáň leg. [w, p]” ( NHMB) ; 1 ♀, “LAO, Phongsaly prov., / 21°41-2´N 102°06-8´E, / 28.v–20.vi.2003, / PHONGSALY env., / ~ 1500m, Brancucci leg. [w, p]” ( NHMB) ; 1 ♂ 8 ♀♀, “ Collection / Naturhistorisches / Museum Basel [w, p] // LAO, Phongsaly prov., / 21°41-2´N 102°06-8´E, / 28.v–20.vi.2003, / PHONGSALY env., / ~ 1500m, Pacholátko leg. [w, p]” ( NHMB) . THAILAND: 1 ♂ 1 ♀, “THAILAND, Chiang Mai prov., / Chiang Mai env., NP Doi / Suthep-Pui , 18°49´34.25´´ N, [w, p] // 98°53´43.40´´E; sweeping in / forest around a trail margin, / 9.iv.2015, Albert Damaška lgt. [w, p]” ( JBCB) ; 5 ♀♀, “THAILAND, Nan prov., / Doi Phuka Nat. Park , / 28.IV–12.V.2002 / P. Průdek & M. Obořil leg. [w, p]” ( JBCB) ; 1 ♂ 5 ♀♀, “ Thailand, Mae Hong Son pr., / Kiwlom-pass near Soppong , / 23.vi–2.vii.2002, 1400m, / WGS 84: 19°26´N, 98°19´E, / lgt. Fouqué R.+H. [w, p]” ( JBCB) ; 3 ♀♀, “NW THAILAND, 19–23. / Chiang Mai, 4.1991 / Doi Suthep to Doi Pui / J. Horák leg. [w, p]” ( JBCB) ; 1 ♀, “THAILAND Nan pr. / Doi Phuka NP / May 2000 / local collector lgt. / BMNH{E} 2016-44 [w, p]” ( BMNH) ; 1 ♀, “NE Thailand, 19-22.4 / 1991, Chieng Mai prov. / Doi Suthep , S. Bily leg [w, p] // Pyrrhalta / maculata Gr. /Kim. [h] / det. L. Medvedev [p] 1997 [h]” ( NHMB) ; 1 ♂, “Thailand NW, 29.IV–17.V.2007 / Mae Hong Son prov. / pass Soppong-Pai, 20 km from / Soppong P. Viktora leg. [y, p]” ( JBCB) ; 1 ♀, “NW Thai 9– 16.5.1991 / MAE HONG SON / Ban Huai Po 1600m / leg. P. Pacholátko [w, p]” ( JBCB) ; 1 ♀, “S THAILAND, BETONG / GUNUNG CANG DUN VILL / YALA distr. / 25.3– 22.4.1993 / LGT. HORAK [w, p]” ( JBCB) ; 1 ♀, “NW Thailand, 1991 / Chiang Mai, 18.49N, 99.00E / Doi Suthep to Doi Pui / 19–23.4., L. Dembický leg. [w, p]” ( NMW) . CHINA: Yunnan: 1 ♀, “CHINA: S-YUNNAN / (Xishuangbanna) / 45 km SW Jinghong, vic. Bangzhang vill. [w, p] // N21°44´37´´, E100°27´02´´, / 16–1700m, 03–05.V.2009 / leg. A. Weigel, blüh. Cast. [w, p] // Pyrrhalta / maculata G/K [h] / L. Medvedev det. [w, p]” ( NMEG) ; 1 ♂ 6 ♀♀, “CHINA: Yannan / Honghe / Qibaofeng , 1350 m, / 23°4´4.2´´N, 103°23´/ 46.9´´ E, 17.VI.2018 / leg. A. Weigel KL/KF [w, p] // collection / NATURKUNDE- / MUSEUM ERFURT [y, p]” ( NMEG) . The specimens are provided with one ad- ditional printed red label: “ HOLOTYPUS, [or PARATYPUS, respectively], / Pyrrhalta / lucka sp. nov., / Bezděk & Lee, 2019” .

Description. Body length: ♂♂ 3.5–4.4 mm (holotype 3.7 mm); ♀♀ 3.5–4.5 mm.

Male (holotype, Fig. 34 ). Dorsally pale brown except following parts black: middle part of vertex, three spots on pronotum (one elongate median and two smaller round spots laterally), scutellum, each elytron with five spots: one small round spot between humerus and scutellum, not touching anterior elytral margin; two round spots along lateral elytral margin; two elongate spots along suture. Legs pale brown with tarsi and apical halves of all tibiae infuscate. Antennae with pale brown antennomeres I-III, darker brown IV-VI and brown VII-XI. Ventral side: head and prosternum pale brown, mesoventrite black with brown middle part, metaventrite black with brown posterior margin, abdomen pale brown with lateral parts of each abdominal ventrite black.

Head. Labrum transverse with rounded anterior margin, surface with transverse row of several punctures bearing long pale setae. Anterior clypeal margin slightly concave. Anterior part of head semiopaque, sparsely covered with punctures and longer pale setae. Interantennal space narrow, 0.65 times as wide as transverse diameter of antennal insertion. Interocular space 2.62 as wide as transverse diameter of eye. Frontal tubercles subtriangular semiopaque, covered with microsculpture, separated each other by thin sulcus, laterally demarcated by thin furrow, posterior margins continuous with vertex. Vertex dull, covered with microsculpture, small punctures and short setae. Antennae ( Fig. 20 ) subclavate, 0.70 times as long as body, length ratios of antennomeres I–XI equal to 13-7- 10-9- 8-8 -8- 8-9-9-15, last five antennomeres distinctly dilated, antennomeres IX-X as wide as long, XI 1.85 times as long as wide, antennomeres VIII-XI distinctly flattened on ventral side.

Pronotum transverse, 1.75 times as wide as long, widest at anterior third. Anterior margin widely, weakly concave, lateral margins obtuse angulate with broadly rounded middle part, anteriorly and posteriorly convergent and nearly straight, posterior margin weakly concave, lateral parts of posterior margin oblique and concave. All margins thinly bordered. Anterior and posterior angles toothed and bearing long pale seta. Surface with distinct elevation along anterior margin, laterally wider and curved posteriorly, disc transversely impressed. Elevation almost glabrous and lustrous, disc densely covered with small punctures and short setae.

Scutellum triangular, with rounded apex, surface densely covered with microsculpture, small punctures and short setae.

Elytra moderately convex, slightly extended posteriorly, 0.73 as long as body, 1.65 times as long as wide, dull, covered with small confused punctures with interspaces as wide as or narrower than puncture diameters and dense, short, pale setae, surface weakly impressed in subscutellar area, rest of surface even. Humeral calli well developed. Epipleura wide, in apical quarter gradually narrowed towards apex, densely covered with short pale setae. Macropterous.

Ventrally semiopaque, covered with longer pale setae. Last abdominal ventrite with deep U-shaped incision ( Fig. 9 ).

Legs moderately narrow. Protarsi: protarsomere I narrow, subparallel, II subtriangular, short, ventrally, protarsomeres I concave in lateral view, basally with distinct tooth ( Fig. 10 ), length ratios of protarsomeres I–IV equal to 5-6-4-9. Mesotarsi: mesotarsomere I narrow, subparallel, in lateral view axe-shaped, with very narrow basal part and extended apical two thirds, angles of extended part pointed ( Fig. 15 ), length ratios of mesotarsomeres I–IV equal to 6-6-5-9. Metatarsi: metatarsomere I narrow, subparallel, length ratios of metatarsomeres I–IV equal to 7-6- 5-10. Claws bifid.

Aedeagus ( Fig. 5 ) with wide flat apical half, in dorsal view sublanceolate with large triangular incision on left side, anterior part of incision with membranous structure, basal half of aedeagus narrower than apical half but robust in lateral view.

Female. Antennae with brown antennomeres I-III, antennomeres IV and V gradually darkened, VI-XI black. Antennae subclavate but apical five antennomeres narrower than in male (ca 1.3 times as long as wide). Pro- and mesotarsomeres I not modified. Last abdominal ventrite entire, without deep U-shaped incision. Spermatheca ( Fig. 23 ) with C-shaped cornu, basal part slightly broader, and subsphaerical nodulus, cornu slightly wider than nodulus, basal part of ductus spermathecae finger-like where thin ductus is attached.

Differential diagnosis. In habitus, Pyrrhalta lucka sp. nov. is similar to P. schillhammeri sp. nov. from Laos. The males of both species possess subclavate antennae and modified ventrally, pro- and mesotarsomeres I ( Figs 10–11, 15–16, 20–21 ). Both species differ in the structure of the aedeagus. The aedeagus of P. lucka sp. nov. has an extended, flat, lanceolate apical half, while the aedeagus of P. schillhammeri sp. nov. has the apical half narrow and slightly curved left ( Figs 5–6 ). In the additional similar species, Pyrrhalta tsoui sp. nov. from Taiwan and Laos, the elytral spots near the suture are round (elongate in P. lucka sp. nov.), the antennae lack distinctly enlarged apical antennomeres (antennae subclavate in P. lucka sp. nov.), and ventrally, pro- and mesotarsomeres I are not modified (modified in P. lucka sp. nov.).

Distribution. Laos, Thailand, China (Yunnan).

Etymology. Dedicated to our dear friend and colleague Lucie “Lucka” Havlová ( Czech Republic, Brno).

Figures

FIGURES 1–7. Aedeagus. 1—Pyrrhalta maculata (basal half in dorsal view, apical half in dorsal view, lateral view); 2—P. carolusi sp. nov. (dorsal and lateral views); 3—P. kaboureki sp. nov. (dorsal, lateral and ventral views); 4—P. kambaitiensis sp. nov. (basal part in dorsal view, apex in dorsal view, lateral view); 5—P. lucka sp. nov. (dorsal and lateral views); 6—P. schillhammeri sp. nov. (dorsal and lateral views); 7—P. tsoui sp. nov. (basal part in dorsal view, apex in dorsal view, lateral view). Scale bar: 0.5 mm.

FIGURES 8–21. Details of Pyrrhalta males. 8—P. kaboureki (last abdominal ventrite); 9—P. lucka sp. nov. (last abdominal ventrite); 10—P. lucka sp. nov. (protarsus, lateral view); 11—P. schillhammeri sp. nov. (protarsus, lateral view); 12—P. carolusi sp. nov. (mesotarsus, lateral view); 13—P. kaboureki sp. nov. (mesotarsus, lateral view); 14—P. kambaitiensis sp. nov. (mesotarsus, lateral view); 15—P. lucka sp. nov. (mesotarsus, lateral view); 16—P. schillhammeri sp. nov. (mesotarsus, lateral view); 17—P. kaboureki (metatarsus, dorsal view); 18—P. maculata (antenna, dorsal and lateral views); 19—P. carolusi sp. nov. (antenna, dorsal and lateral views); 20—P. lucka sp. nov. (antenna, dorsal view); 21—P. schillhammeri sp. nov. (antenna, dorsal view). Scale bars: 1.0 mm for Figs 8–9, 0.5 mm for Figs 10–21.

FIGURES 22–24. Spermatheca. 22—Pyrrhalta maculata; 23—P. lucka sp. nov.; 24—P. tsoui sp. nov. Scale bar: 0.2 mm.

FIGURES 31–36. Male habitus. 31—Pyrrhalta carolusi sp. nov. (holotype, 4.3 mm); 32—P. kaboureki sp. nov. (holotype, 3.9 mm); 33—P. kambaitiensis sp. nov. (holotype, 4.5 mm); 34—P. lucka sp. nov. (holotype, 3.8 mm); 35—P. schillhammeri sp. nov. (holotype, 3.7 mm); 36—P. tsoui sp. nov. (paratype, 3.9 mm).