Gergithoides undulatus Wang & Che, 2003

Jérôme Constant & Hong-Thai Pham, 2017, Gergithoides Schumacher, 1915 in Vietnam, with two new species, and taxonomic notes on the genus (Hemiptera: Fulgoromorpha: Issidae), European Journal of Taxonomy 296, pp. 1-20 : 17-18

Gergithoides undulatus Wang & Che, 2003

Gergithoides undulatus Wang & Che, 2003 in Che et al. 2003: 103 [keyed, described (in Chinese)], figs 1–6 [frons, vertex, pro- and mesonotum, tegmen and male genitalia illustrated], 107 [diagnosis in English].

Gergithoides undulatus – Rahman et al. 2012: 295 [keyed]. — Chen et al. 2014: 37 [keyed (in Chinese)], 38 [distribution map], fig. 2-10 [habitus, details and male genitalia illustrated], 43 [described, recorded from Hainan (in Chinese)]; 188 [distribution, recorded from Hainan (in English)].

Remarks

This species was described by Che et al. (2003) based on the male holotype from Guangxi and 10 female paratypes from Hainan. As no male from Hainan was examined to support the attribution of the series of female paratypes by the authors, the consistency of the type series of G. undulatus remains questionable.

The specimen and male genitalia illustrated in Chen et al. (2014) are based on material from Hainan and do not match the illustrations provided in the original description. Particularly, and compared to the latter, the following differences can be observed in the specimen from Hainan: (1) vertex more elongate, (2) anal tube with posterior margin roundly emarginate, not bisinuate, and without ante-apical strong constriction, and (3) gonostyli more elongate.

Hence, the presence of the species in Hainan still requires confirmation by the examination of male genitalia.