Mongoliana arcuata, Meng, Rui, Wang, Yinglun & Qin, Daozheng, 2016

Meng, Rui, Wang, Yinglun & Qin, Daozheng, 2016, Four new species of the genus Mongoliana Distant (Hemiptera: Fulgoromorpha: Issidae) from southern China, Zootaxa 4061 (2), pp. 101-118 : 109-111

Mongoliana arcuata sp. nov.

Gergithus triangularis [sic!] = Mongoliana triangularis Chen, Zhang & Chang, 2014: 76 , non Mongoliana triangularis Che, Wang & Chou, 2003: 38 .

Diagnosis. The new species differs from M. triangularis Che, Wang et Chou by (features of M. triangularis Che, Wang et Chou in parentheses): clypeus black ( Chen et al. 2014, Fig. 2 –31E) [clypeus pale brown ( Fig. 26 )]; anal tube with apical margin convex, lateroapical angle obtuse ( Chen et al. 2014, Fig. 2 –31H) [apical margin of anal tube sinuate, lateroapical angle protruding ( Fig. 73 )]; aedeagus with pair of asymmetrical processes both arising from base ( Chen et al. 2014, Fig. 2 –31K, L) [processes symmetrical and both arising from middle ( Figs 74–76 )]; pygofer in profile with posterior margin slightly convex near middle ( Chen et al. 2014, Fig. 2 –31I) [pygofer in profile with posterior margin concave in dorsal one-third, strongly convex near middle ( Che et al. 2003, Fig. 2 B)].

Description (modified after Chen et al. ’s original description). Body brown. Frons fuscous, with yellow tubercules and numerous yellow spots. Frontoclypeal suture and clypeus black except a yellow transverse fascia at the base of clypeus.

Male terminalia. Anal tube with apical margin convex in middle, lateroapical angle obtuse. Pygofer in lateral view with posterior margin slightly convex near middle. Lateral lobes of phallobase arcuate at apex, dorsal margin serrated near apex; ventral lobe with apical margin slightly sinuate; aedeagus with paired asymmetrical processes at base. Genital style with hind margin nearly straight near middle, dorsal margin with moderate subquadrate process at middle.

Material examined. One male (holotype), China, Yunnan Province, Gaoligong Mountains National Nature Reserve, Baihualing, 8 May 2009, Zaihua Yang; two males (paratypes), same data as holotype ( IEGU, examined from images only).

Etymology. The specific epithet “ arcuata ” refers to arcuate apical margin of the anal tube.

Distribution. China (Yunnan) ( Fig. 81 ).

Notes. Recently, Chen et al. (2014) re-described M. triangularis based on three males from Yunnan, China. Although Chen et al. (2014) misspelled Gergithus triangularis , as Gnezdilov (2015) mentioned: “There are several misprints:…….p. 76— Gergithus triangularis should be changed to Mongoliana triangularis ”. The redescriptions and figures by Chen et al. (2014) show patterns of clypeus coloration and configuration of male genitalia for the species identified by them (see Chen et al. 2014: 76, 77, Figs 2 –31) apparently differ from the holotype of M. triangularis Che, Wang et Chou (now deposited in NWAFU). We considered that it was misidentified and regard as to be a new species in the genus Mongoliana . The photographs of habitus and male genitalia of the holotype of M. triangularis Che, Wang et Chou, 2003 are provided here (see Figs 24 – 26 & 73 – 76 ).

Figures

FIGURE 81. Geographic distribution of Mongoliana species. Data is based on materials observed and references cited with each species.

FIGURES 1 – 6. 1 – 3. Mongoliana bistriata sp. nov.; 4 – 6. Mongoliana latistriata sp. nov. 1, 6. habitus, dorsal view; 2, 5. habitus, lateral view; 3, 4. frons and clypeus. Scale bars = 1 mm.

FIGURES 21 – 26. 21 – 23. Mongoliana albimaculata sp. nov.; 24 – 26. Mongoliana triangularis Che, Wang et Chou, 2003 (holotype). 21, 24. habitus, dorsal view; 22, 26. frons and clypeus; 23, 25 habitus, lateral view. Scale bars = 1 mm.

FIGURES 73 – 80. 73 – 76. Mongoliana triangularis Che, Wang & Chou, 2003 (paratype); 77 – 80. Mongoliana sinuata Che, Wang et Chou, 2003 (holotype). 73, 78. male anal tube, dorsal view; 74, 79. penis, right view; 75. penis, apical half, ventral view; 76, 77. penis, left view; 80. penis, ventral view. Scale bars = 0.2 mm.