Rotigonalia regina Leal & Mejdalani

Leal, Afonso Henrique, Mejdalani, Gabriel & Creão-Duarte, Antonio J., 2016, A new species of Rotigonalia (Insecta: Hemiptera: Cicadellidae) from Peru with a key to males of the genus, Zootaxa 4132 (2), pp. 275-278 : 276-277

Rotigonalia regina Leal & Mejdalani sp. nov.

( Figs 1–5 )

Type locality. Parque Nacional Yanachaga-Chemillén, Pasco Department, Peru.

Length. Male holotype, 9.5 mm.

External morphology. Head ( Fig. 1 ) slightly produced anteriorly, median length of crown about 1/3 interocular width and 1/5 transocular width; ocelli located on imaginary line between anterior eye angles, each closer to adjacent eye angle than to median line of crown; frons flattened medially, muscle impressions not distinct; epistomal suture complete; clypeus with its basolateral portions swollen as a pair of lobes. Pronotum ( Fig. 1 ) with width greater than transocular width; lateral margins convergent anteriorly; dorsopleural carinae complete; posterior margin slightly concave. Forewings ( Fig. 1 ) with membrane including first to third apical cells, apical half of fourth apical cell, and extending along costal margin as far anteriorly as base of wing. Hind legs with femoral setal formula 2:1:1; length of first tarsomere greater than combined length of two more distal tarsomeres, with two longitudinal rows of small setae on plantar surface.

Color. Face, ventral body surface, and mesonotum light yellow; crown and anterior third of pronotum greenishyellow; posterior two-thirds of pronotum and forewings green; veins dark brown ( Fig. 1 ).

Male genitalia. Pygofer ( Fig. 2 ), in lateral view, 1.5x longer than wide; dorsal margin approximately rectilinear; posteroventral margin broadly convex; apex rounded; macrosetae equally distributed along apex and ventral margin, scattered along dorsal margin. Subgenital plates ( Fig. 3 ), in ventral view, subtriangular, not extending as far posteriorly as pygofer apex, 2.5x as long as width at base; external margins almost parallel on basal half, gradually tapered towards apex on apical half; uniseriate macrosetae along external margin. Styles ( Fig. 4 ), in dorsal view, slender, not extending as far posteriorly as apex of connective, strongly curved anteapically, apex directed inwards. Connective ( Fig. 4 ), in dorsal view, elongate, T-shaped; stem 3x longer than width of arms, with dorsomedian carina. Aedeagus ( Fig. 5 ), in lateral view, directed posteriorly and curved ventrally, with pair of clawlike processes on apex. Paraphyses ( Fig. 5 ), in dorsal view, paired, symmetrical, with dorsoventral branching at base, articulated with base of aedeagus and apex of connective by dorsal and ventral branches, respectively; rami curved dorsally, approximately parallel, attaining aedeagal processes.

Female unknown.

Etymology. The epithet regina (from Latin: queen) refers to the relatively large size of the new taxon in comparison with the other species of Rotigonalia .

Type material. Holotype: male, “ PERU: PASCO Department,\ P. N. Yanachaga Chemillén,\ Refugio El Cedro\ 2420m 11.X.2002 \ 10°33’07”S 075°21’27”W \ D. M. Takiya PE07” ( MUSM).

Figures

FIGURES 1 – 5. Rotigonalia regina sp. nov., male holotype. (1) Dorsal habitus; (2) pygofer, lateral view; (3) valve and subgenital plates, ventral view; (4) styles and connective, dorsal view; (5) anal tube, aedeagus and paraphyses, lateral view. Scale bars: (1) 1.0 mm; (2 – 5) 0.5 mm.