Zonana petalacea, Magalhães, Raysa Brito De, Gonçalves, Clayton Corrêa & Takiya, Daniela Maeda, 2014

Magalhães, Raysa Brito De, Gonçalves, Clayton Corrêa & Takiya, Daniela Maeda, 2014, A new species of Zonana DeLong & Freytag (Hemiptera: Cicadellidae: Iassinae: Gyponini) from Peru with a key to species of the genus, Zootaxa 3881 (4), pp. 396-400 : 397-399

Zonana petalacea sp. nov.

( Figs 1 ─12)

Diagnosis. Subgenital plates ( Fig. 5 ) with rounded apex. Aedeagus ( Figs 8–10 ) shaft elongated and tubular; ventral margin bifurcating into pair of elongated and slender ventral processes, curved dorsoanteriorly with apices converging; dorsal margin forming petal-shaped process, strongly flattened, with lateral margins folded anteriorly and apical margin folded posteriorly; gonopore located between dorsal and ventral processes.

Measurements (mm). Male holotype: total length 7.0 mm.

Color. Body ( Figs 11, 12 ) pale brown. Crown ( Fig. 11 ) with broad median longitudinal brown band; pair of longitudinal bands starting before each ocellus and slightly converging apically and pair of rounded spots near posterior margin, posterior to each ocellus, black. Frons ( Fig. 1 ) with nine pairs of parallel transverse black bands over muscle impressions. Pronotum ( Fig. 11 ) with four pairs of small black irregular spots on anterior half behind eyes, one median and three lateral pairs; brown punctures at midline and posterior half. Mesonotum ( Fig. 11 ) with brown basal angles. Forewings ( Fig. 2 ) with basal half of clavus coriaceous reddish-brown with dark-brown punctures; apical half of clavus and corium hyaline brown; venation pale brown except basal and apical portion of discal cells, dark-brown. Hind wings fuscous with black venation. Legs pale brown, profemora with large central dark brown macula on both anterior and posterior face.

External morphology. Crown ( Figs 11, 12 ) slightly produced; with interocular width three times its median length, slightly concave medially; surface with concentric striae and small and sparse brown punctures; anterior margin with transverse striations. Frons ( Fig. 1 ) with surface shagren, with small and sparse punctures. Clypeus ( Fig. 1 ) widest preapically. Pronotum ( Figs 11, 12 ) surface with transverse striae and puctures over midline and posterior half. Forewings ( Fig. 2 ) approximately three times longer than wide; basal half of clavus coriaceous and densely punctate.

Hind femora with AD row with setae; AD starts immediately at base of tibia; AV is absent at basal fourth; PD row with setae; PV row with thin and elongated setae close set; without intercalary setae in all rows.

Male terminalia: Sternite VIII ( Fig. 3 ), in ventral view, two times wider than long; approximately rectangular; anterior margin shallowly concave; posterior margin with slightly medial reentrance. Pygofer ( Fig. 4 ), in lateral view, shorter than high; few macrosetae present at apical third, near dorsal margin; dorsal margin with small subapical lobe; inner surface with rounded process arising apically; apex poorly sclerotized with few microsetae. Valve ( Fig. 4 ) fused laterally to pygofer; posterior margin strongly concave. Subgenital plates ( Figs 4, 5 ) not extending posteriorly to apex of pygofer; in ventral view, approximately five times longer than maximum width; ventral surface with few scattered microsetae; lateral margins parallel; apex rounded. Connective ( Fig. 6 ), in dorsal view, slightly shorter than style; cruciform, with anterior projection well produced; arms extended and curved anterodorsally. Styles ( Figs 6, 7 ) with ventral margin with preapical region rounded and serrated. Aedeagus ( Figs 8–10 ) shaft elongated and tubular; ventral margin of apical third bifurcated into pair of elongated and slender ventral processes, abruptly curved dorsoanteriorly with apices converging; dorsal margin of apical third with petal-shaped process, strongly flattened, lateral margins expanded and folded anteriorly, apical margin folded posteriorly; gonopore located between the dorsal and ventral processes.

Female unknown.

Etymology. The new species name alludes to the apical dorsal process of aedeagus, which is petal-shaped.

Material examined. Male holotype: “ PERU: Cusco, 19 rd km W Quincemil \ Rio Araza tributary \ 13°20’10’’S 70º50’57’’W 874m \ 23-31.VIII.2012 Malaise, RR Cavichioli,\ JA Rafael, APM Santos & DM Takiya”, “ DNA voucher\ Entomologia, DZRJ \ ENT 1321” ( MUSM).

Notes. Although no females of the new species are known, and a single species of Zonana , Z. alera , is known only from females, we do not believe that these two species may be conspecific. In general, most Gyponini genera show no sexual dimorphism in the color pattern and Z. alera differs from Z. petalacea sp. nov. by having the crown entirely pale yellow without spots and forewings with large dark maculae on costal margin and apex fuscous. Furthermore, we believe that their distributional ranges are widely separated; while Z. alera is only known from Costa Rica, the new species is known from Peru.

Zonana petalacea sp. nov. is most similar to Z. bilobata because both have a similar aedeagus. Based on the original illustration ( Freytag, 1990, Fig. 1 ), the rounded apex of Z. bilobata is very similar to the flattened dorsal process of Z. petalacea sp. nov. However, the new species can be distinguished from other species of Zonana by the pair of elongated and slender ventral processes, curved dorsoanteriorly.

Figures

FIGURE 1 – 10. Zonana petalacea sp. nov., male holotype. 1, head, frontal view. 2, forewing. 3, sternite VIII, ventral view. 4, pygofer, valve and subgenital plate, lateral view. 5, subgenital plate, ventral view. 6, connective and style, dorsal view. 7, style, lateral view. 8 – 10, aedeagus in lateral, caudal and dorsal views, respectively.

FIGURE 11, 12. Zonana petalacea sp. nov., male holotype. 11 – 12, body in dorsal and lateral views, respectively.