Chinaia Bruner & Metcalf, 1934

Marques, Ana Paula Coelho & Ale-Rocha, Rosaly, 2016, Four new species of Chinaia Bruner & Metcalf (Hemiptera: Cicadellidae: Neocoelidiinae) from the Neotropical Region, Zootaxa 4189 (1), pp. 145-155 : 146

Chinaia Bruner & Metcalf, 1934

Chinaia Bruner & Metcalf 1934: 120 ; Evans 1947: 197 –198 (illustrations and citation); Kramer 1959: 23 –30 (redescription, key to males, removed species); 1964: 261, 264 (key, redescription, distribution); 1967: 46 (synonymy of species); Metcalf, 1964: 112 (catalogue); Oman et al., 1990: 199, 303 (catalogue); Chiamolera & Cavichioli 2002: 1161 –1167 (history, key to male species); Marques-Costa & Cavichioli, 2005: 1 –5 (history, redescription); 2009: 49–54 (history, synonym of species); 2012: 3–8, 10–19 (distribution, illustrations, cladistic analysis of Neocoelidiinae ).

Type species: Chinaia bella Bruner & Metcalf, 1934 by original designation.

Total length. 5.2– 10 mm.

Diagnosis. Head with anterior margin broadly rounded, without transverse carina in transition between crown and frons ( Figs 1, 3 , 12, 13 , 22 , 31, 33 ); ocelli located slightly below transition margin between crown and frons ( Figs 23 , 13 , 23 , 32–33 ); clypeus with lateral margins apically divergent ( Figs 2 , 23 , 32 ). Pronotum with posterior margin straight, not emarginated ( Figs 1 , 12 , 22 , 31 ); forewing thickened, opaque and colored on basal and middle thirds, always with contrasting stains in yellow, orange, red and/or brown tones, only apical third hyaline ( Figs 4 , 14 , 24 , 34 ); forewing venation obscure except claval suture and apical cells, with three apical cells ( Figs 4 , 14 , 24 , 34 ); hind wing with R4+5 and M1+2 divergent apically, not fused. Male genitalia: pygofer either with dorsal processes or elongated apex ( Figs 5 , 15 , 25 , 35 ); subgenital valve fused with subgenital plates, but with weak depigmented line between them; subgenital plates deep and scoop-shaped, fused only on basal third, sometimes with six or less setae close to inner margins ( Figs 6 , 16 , 26 , 36 ); styles with preapical lobe well developed and laterally projected ( Figs 7–8 , 17–18 , 27–28 , 37–38 ); connective cruciform, articulated to aedeagus ( Figs 8 , 18 , 28 , 38 ); aedeagus moderately straight or recurved, with or without lateral flaps or processes, and with apical gonopore ( Figs 9–11 , 19–21 , 29–30 , 39–40 ); anal tube simple and membranous, without processes ( Figs 5 , 15 , 35 ).

Notes. Chinaia can be easily separated from the other genera of Neocoelidiinae by the general coloration of the crown, pronotum and mesonotum, yellow to orange with dark-orange to red stains and/or strips ( Figs 41–47 ). The forewings are thickened and colored on the basal and middle thirds, always with contrasting stains in yellow, orange, red and/or brown tones, apical third hyaline ( Figs 41–47 ). Besides the characters given above, the following combination of features also help to separate Chinaia from the other genera: (1) pygofer, in lateral view, approximately triangular, enlarged basally, narrowing gradually towards apex ( Figs 5 , 15 , 25 , 35 ); (2) valve fused to subgenital plates, with depigmented line between them ( Figs 6 , 16 , 26 , 36 ); and (3) connective cruciform ( Figs 8 , 18 , 28 , 38 ).

Figures

FIGURES 1 – 11. Chinaia bicornis sp. nov., male holotype: 1, head, pronotum and mesonotum, dorsal view; 2, head, frontal view; 3, head, pronotum and mesonotum, lateral view; 4, forewing; 5, pygofer and anal tube, lateral view; 6, valve and subgenital plates, ventral view; 7, style, lateral view; 8, connective and styles, dorsal view; 9, aedeagus, lateral view; 10, aedeagus, ventral view; 11, aedeagus, dorsal view.

FIGURES 12 – 21. Chinaia longicauda sp. nov., male holotype: 12, head, pronotum and mesonotum, dorsal view; 13, head, pronotum and mesonotum, lateral view; 14, forewing; 15, valve, pygofer and anal tube, lateral view; 16, valve and subgenital plates, ventral view; 17, style, lateral view; 18, connective and styles, dorsal view; 19, aedeagus, lateral view; 20, aedeagus, dorsal view; 21, apex of aedeagus, superior view.

FIGURES 22 – 30. Chinaia modesta sp. nov., male holotype: 22, head, pronotum and mesonotum, dorsal view; 23, head, frontal view; 24, forewing; 25, pygofer, lateral view; 26, valve and subgenital plates, ventral view; 27, style, lateral view; 28, connective and styles, dorsal view; 29, aedeagus, lateral view; 30, aedeagus, dorsal view.

FIGURES 31 – 40. Chinaia peruviana sp. nov., male holotype: 31, head, pronotum and mesonotum, dorsal view; 32, head, frontal view; 33, head, pronotum and mesonotum, lateral view; 34 forewing; 35, pygofer and anal tube, lateral view; 36, valve and subgenital plates, ventral view; 37, style, lateral view; 38, connective and styles, dorsal view; 39, aedeagus, lateral view; 40, apex of aedeagus, dorsal view.

FIGURES 41 – 47. Male holotype, lateral and dorsal view: 41 – 42, Chinaia bicornis sp. nov.; 43 – 44, Chinaia longicauda sp. nov.; 45, Chinaia modesta sp. nov.; 46 – 47, Chinaia peruviana sp. nov. Scale bar = 1.0 mm.