Boundarus Li & Wang

Zhang, Yalin, Zhang, Xinmin & Wei, Cong, 2010, Review of the genus Boundarus Li & Wang (Hemiptera: Cicadellidae: Evacanthinae) from China, with description of two new species, Zootaxa 2575, pp. 63-68 : 63-64

Boundarus Li & Wang

Boundarus Li & Wang, 1998: 198 .

Type species: Boundarus trimaculatus Li & Wang.

Head ( Fig. 19 ) rounded anteriorly, shorter than pronotum and scutellum together; crown with median longitudinal carina distinct, not extending to apex of head, disc concave, lateral margins poorly delimited; submarginal carina mesad of ocelli on crown. Face including eyes ( Figs 3, 6, 9, 12, 15, 18 ) longer than wide; frontoclypeus with median longitudinal carina and oblique striae laterally; clypellus broad, swollen basally, narrowed apically; lora large, flat, reaching apex of clypellus; gena strongly declivous laterally. Pronotum ( Figs 1, 4, 7, 10, 13, 16, 19 ) broad, slightly wider than head. Scutellum ( Figs 1, 4, 7, 10, 13, 16, 19 ) triangular, shorter than pronotum; transverse depression distinct. Forewing ( Figs 1, 4, 7, 10, 13, 16, 19 ) yellowish brown with dark black patches, or generally black; claval veins separate throughout length; four apical cells present, appendix broad. Hind femoral spinulation 2+1+1.

Male pygofer ( Figs 21, 26, 31 ) tapered apically in lateral view, without ventral process. Subgenital plate ( Figs 25, 30, 35 ) elongate, with hair-like setae or macrosetae arranged in rows. Style ( Figs 24, 29, 34 ) with basal articulating arm short, apophysis well developed, foot-like apical process with several setae and elongate lateral angle; connective ( Figs 24, 29, 34 ) Y-shaped, stem very long. Aedeagus ( Figs 22–23, 27–28, 32–33 ) in lateral view curved dorsad, with pair of apical processes and pair of well developed processes on dorsal part of atrium, respectively; gonopore apical.

Female slightly longer than male, with abdomen extending beyond apex of forewing ( Fig. 4 ). First valvula ( Figs 38–39, 42–43, 46–47 ) with longitudinal striations extending over distal one third and attaining dorsal margin; second valvula with dorsal sclerotised and hyaline area present, dorsal margin with rounded teeth on distal third ( Figs 36–37, 40–41, 44–45 ).

Remarks: The genus Boundarus is similar to Evacanthus Le Peletier & Serville and Onukia Ishihara , but it can be easily distinguished from the latter two genera by: 1) lateral margins of crown poorly delimited; 2) veins R1a and C in forewing fused and forming an acute angle (not right angle as in the other two genera); 3) male genitalia with pair of anterior processes near middle of aedeagus (see table 1 for details).

Taxa characteristics

Figures

FIGURES 1 – 20. Habitus, face and forewing. 1 – 6: B. trimaculatus; 7 – 12: B. ancinatus sp. nov.; 13 – 18: B. nigronotus sp. nov.; 1 – 3, 7 – 9, 13 – 15 male; 4 – 6, 10 – 12, 16 – 18 female; 19 – 20: head and forewing of B. trimaculatus, respectively.

FIGURES 21 – 35. Male genitalia. 21 – 25: B. trimaculatus; 26 – 30: B. ancinatus sp. nov. 31 – 35: B. nigronotus sp. nov.; 21, 26, 31: male pygofer, lateral view; 22, 27, 32: aedeagus, lateral view; 23, 28, 33: aedeagus, ventral view; 24, 29, 34: connective and style, dorsal view; 25, 30, 35: subgenital plate, ventral view.

FIGURES 36 – 47. Ovipositor. 36 – 39: B. trimaculatus; 40 – 43: B. ancinatus sp. nov.; 44 – 47: B. nigronotus sp. nov.; 36 – 37, 40 – 41, 44 – 45: second valvula, apex of second valvulae, laterior view; 38 – 39, 42 – 43, 46 – 47: first valvula, apex of first valvulae, lateral view.