Limois Stål, 1863

Constant, Jérôme & Pham, Thai Hong, 2022, First record of the lanternfly genus Limois Stål, 1863 in Vietnam with a new species, L. sonlaensis sp. nov. (Hemiptera: Fulgoromorpha: Fulgoridae), Bonn zoological Bulletin 71 (1), pp. 9-17 : 10-11

Genus Limois Stål, 1863

Limois Stål, 1863: 230 .

Type species: L. westwoodii ( Hope, 1843) .

Limois – Metcalf 1947: 170. — Lallemand 1963: 54. — Chou & Lu 1981: 221. — Chou et al. 1985a: 30. — Chou et al. 1985b: 108. — Nagai & Porion 1996: 22. — Wang et al. 2020: 36.

Species included [distribution]

Limois bifasciatus Ollenbach, 1928 [ India, Uttarakhand State ( Ollenbach, 1928)]

Limois chagyabensis Chou & Lu, 1981 [ China: Xizang, Shaanxi, Sichuan ( Wang et al., 2020)]

Limois emelianovi Oshanin, 1908 [ China: Gansu, Dongbei ( Wang et al. 2020); Russia ( Oshanin 1908; Anufriev 2009); Korea ( Doi 1932a, 1932b; Kwon & Huh 2001)].

Limois guangxiensis Chou & Wang, 1985 [ China: Guangxi, Fujian ( Wang et al. 2020)]

Limois hunanensis Chou & Wang, 1985 [ China: Hunan ( Wang et al. 2020)]

Limois kikuchii Kato, 1932 [ China: northern China ( Kato 1932, 1933), Shaanxi, Beijing ( Liang 2005), Korea ( Kato 1933; Metcalf 1947)]

Limois sonlaensis sp. nov. [ Vietnam: Son La Province]

Limois sordida Wang, Xu, Constant & Qin, 2020 [ China: Shanxi; Hebei, Beijing ( Wang et al. 2020)]

Limois westwoodii ( Hope, 1843) [ Bangladesh ( Hope 1843); China: Xizang; Myanmar ( Wang et al. 2020)]

Identification key to the species of Limois Stål, 1863

1. Frons with three longitudinal carinae ( Wang et al. 2020: figs 1E–F, 4C, 6E, 11D) ............................... 2

– Frons with two longitudinal carinae ( Wang et al. 2020: figs 2E, 3B, 8D, 9D–F) ................................ 5

2. Pronotum with one dark irregular patch along the posterior margin on each lateral area ( Wang et al., 2020: fig. 11B); base of hindwings yellow in male and red in female ( Wang et al. 2020: fig. 11A, C) ... .................................... L. emelianovi Oshanin, 1908

– Pronotum without one dark irregular patch along the posterior margin on each lateral area ( Wang et al., 2020: figs 1D, 4B, 6D); base of hindwings concolorous in both sexes ( Wang et al., 2020: figs 1A–B, 4A, D, 6A–B) ....................................... 3

3. Pronotum brown ( Wang et al., 2020: fig. 4B); genital styles distinctly elongate, subtriangular in lateral view ( Wang et al., 2020: fig. 5A–B) ........................ .............................................. L. kikuchii Kato, 1932

– Pronotum purplish red or dark brown ( Wang et al. 2020: figs 1D, 6D); genital styles short, almost equilateral in lateral view ( Wang et al. 2020: figs 1H, 7A, C) ..................................................................... 4

4. Pronotum purplish red ( Wang et al. 2020: fig. 1D); thorax sparsely covered with few dark spots ( Wang et al., 2020: fig. 1D); irregular stripe in tegmina short and straight, not extending to anal angle ( Wang et al., 2020: fig. 1A–C); apical half of endosomal processes exposed ( Wang et al. 2020: figs 1K–L, 14C–D) ...... ............................ L. chagyabensis Chou & Lu, 1981

– Pronotum dark brown ( Wang et al. 2020: fig. 6D); thorax densely covered with numerous dark spots ( Wang et al., 2020: fig. 6D); irregular stripe in tegmina long, sinuately extending to anal angle ( Wang et al., 2020: fig. 6A–C); apical ⅓ of endosomal processes exposed ( Wang et al. 2020: figs 7D–E, 15C–D) ...... ............ L. sordida Wang, Xu, Constant & Qin, 2020

5. Thorax densely covered with numerous minute dark spots, disc of mesonotum without black marking ( Fig. 1B ; Wang et al. 2020: fig. 2D); tegmina submedially without strongly contrasting broad irregular band ( Fig. 1A ; Wang et al. 2020: fig. 2A) .. ................................................................................. 6

– Thorax with minute dark spots sparse or absent, disc of mesonotum with black markings ( Wang et al., 2020: figs 3A, 8B, 9B); tegmina submedially with contrasting broad irregular band ( Wang et al. 2020: figs 3D, 8A, C, E, 9A, G) ....................................... 7

6. Minute black spots density equal on disc of pro- and mesonotum ( Wang et al., 2020: fig. 2D); postclypeus pale yellowish with minute darker spots ( Wang et al., 2020: fig. 2E); dorsal angle of gonostyli rounded in lateral view ( Wang et al. 2020: fig. 2G–H) .............. ....................... L. guangxiensis Chou & Wang, 1985

– Minute black spots covering on disc of pronotum distinctly less dense than that on disc of mesonotum ( Fig. 1B ); postclypeus dark brown with irregular pale yellowish markings ( Fig. 1C ); dorsal angle of gonostyli forming a right angle in lateral view ( Fig. 2A ) ................................ L. sonlaensis sp. nov.

7. Pronotum with 2 dark spots anteriorly, without one longitudinal broken black band on each side of median carina ( Wang et al. 2020: fig. 3A) ............... .......................... L. hunanensis Chou & Wang, 1985

– Pronotum without dark spots anteriorly, with one longitudinal broken black band on each side of median carina ( Wang et al. 2020: figs 8B, 9B) ...... 8

8. Tegmina with an oblique narrow fascia from apex to disc ( Wang et al. 2020: fig. 13) ................................ .................................. L. bifasciatus Ollenbach, 1928

– Tegmina without an oblique narrow fascia from apex to disc ( Wang et al. 2020: figs 8A, C, E, 9A, G) ...... ...................................... L. westwoodii ( Hope, 1843)

Figures

Fig. 1. Limois sonlaensis sp. nov., ♂, holotype (VNMN). A. Habitus, dorsal view. B. Head and thorax, dorsal view. C. Head and thorax, perpendicular view of frons. D. Habitus, ventral view. E. Head and thorax, laterodorsal view. F. Head and thorax, anterolateral view. G. Habitus, lateral view. H. Head and thorax, lateral view.

Fig. 2. Limois sonlaensis sp. nov., ♂, holotype (VNMN), terminalia: anal tube, pygofer and gonostyli. A. Left lateral view. B. Caudal view.C. Dorsal view. D. Ventral view. E. Posterolateral view. F. Laterodorsal view.Abbreviations:ac = anal column; An = anal tube; G = gonostylus; lhg = lateral hook of gonostylus; Py = pygofer.