Gergithus bimaculatus Zhang and Che, 2009, Zhang and Che, 2009

Meng, Rui & Wang, Yinglun, 2012, Two new species of the genus Gergithus Stål (Hemiptera: Fulgoromorpha: Issidae) from China, with a redescription of G. bimaculatus Zhang and Che, and G. tessellatus Matsumura, Zootaxa 3247, pp. 1-18: 11-16

publication ID 10.5281/zenodo.211928

publication LSID

persistent identifier

treatment provided by


scientific name

Gergithus bimaculatus Zhang and Che, 2009


Gergithus bimaculatus Zhang and Che, 2009  

( Figs. 43–64 View FIGURES 43 – 50 View FIGURES 51 – 62 View FIGURES 63 – 64 )

Gergithus bimaculatus Zhang and Che, 2009: 185   .

Supplementary description: Male length (N= 2) (including tegmen): 4.5–5.0 mm, length of tegmen: 3.9–4.5 mm; female length (N= 1) (including tegmen): 6.1 mm, length of tegmen: 5.6 mm.

Colouration: Male: Vertex green. Frons green with black fascia above frontoclypeal suture. Pronotum and mesonotum green ( Figs. 43, 47, 48 View FIGURES 43 – 50 ). Tegmen brown, green at base, with two black stripes, one along apical margin and other one parallel with it ( Fig. 44 View FIGURES 43 – 50 ). Female: Vertex dark brown. Frons dark brown and green at under part, with black fascia above frontoclypeal suture. Pronotum brown near anterior margin and black near posterior margin.

Mesonotum black ( Figs. 45, 49, 50 View FIGURES 43 – 50 ). Tegmen subhyaline with 4 dark marks: one wide circular stripe at basal half, one semicircular near front mark, the last two stripes at distal margin as in male tegmen ( Fig. 46 View FIGURES 43 – 50 ).

Female genitalia: Sternum VII with posterior margin slightly convex medially ( Fig. 63 View FIGURES 63 – 64 ). Anal tube nearly ovate in dorsal view, base wider than apex, widest at middle ( Fig. 57 View FIGURES 51 – 62 ). Anal column short (about 0.2 times as long as anal tube). Border of gonoplac between first and second gonoplac lobes obsolete, third gonoplac lobes membranous and fork strongly sclerotized ( Figs. 58, 60 View FIGURES 51 – 62 ). Proximal part of posterior connective lamina of gonopophysis IX slightly convex in lateral view, median field separate at apical third, lateral fields not projecting ( Figs. 59, 61 View FIGURES 51 – 62 ). Gonocoxa VIII nearly rectangular. Endogonocoxal process gradually narrowing apically. Anterior connective lamina of gonapophysis VIII bearing three teeth in apical group and two teeth with carinae in the lateral group ( Fig. 62 View FIGURES 51 – 62 ).

Female reproductive organs: Bursa copulatrix well-developed with slightly thin basal half and sac-like apical half. Posterior vagina thick and weakly sclerotized, with small sclerotized plate at base. Anterior vagina relatively thin. Oviductus communis comparatively thick and short. Spermatheca well-developed, ductus receptaculi elongate, diverticulum receptaculi distinctly dilatate, apical part distinctly wider than basal part, spermathecal pump comparatively long with compact helix-shaped loop ( Fig. 64 View FIGURES 63 – 64 ).

Material examined: 1 male (holotype, SWU), Zhadian Town, Gejiu, Yunnan Province, 20 July 2007, coll. Li Yin; 1 male, Wangxiangtai, Yuanjiang County, Yunnan Province, China, 2010 m, 22 July 2006, coll. Xu Zhang; 1 female, same location as anterior, 2020 m, 23 July 2006, coll. Xu Zhang.

Remarks: The external morphology of the specimens we examined differ from the holotype ( Zhang, Y. and Che, Y. -L., 2009, Figs. 16–26 View FIGURES 7 – 18 View FIGURES 19 – 24 View FIGURES 25 – 38 ) which is brown with pale yellow spots and without a stripe along the apical margin of tegmen, but the male genitalia match those of the holotype exactly and the variation in colour is therefore not regarded as having significance at the species level.














Gergithus bimaculatus Zhang and Che, 2009

Meng, Rui & Wang, Yinglun 2012

Gergithus bimaculatus

Zhang 2009: 185