Tetralidia curvipenis, Gonçalves, Clayton Correa, Marques-Costa, Ana Paula & Ale-Rocha, Rosaly, 2011

Gonçalves, Clayton Correa, Marques-Costa, Ana Paula & Ale-Rocha, Rosaly, 2011, A new species of Tetralidia Marques-Costa & Cavichioli (Hemiptera: Cicadellidae: Neocoelidiinae) from Amazon Region, Zootaxa 3070, pp. 23-28 : 24-27

Tetralidia curvipenis sp. nov.

Figs 1–13

Diagnosis. Style with apical third moderately curved ventrally ( Figs 7–8 ); connective Y-shaped ( Fig. 8 ); aedeagus without dorsal apodeme, curved, S-shaped, shaft with apical fifth abruptly curved ventrally, one pair of spiniform dorsal preapical processes forming “V” in ventral view ( Figs 9–10 ); anal tube with pair of moderately elongated basiventral processes, apices slightly curved and sclerotized, reaching posteroventral margin of pygofer ( Fig. 5 ).

Measurements (mm). Male holotype: total length 7.06; crown median length 0.79; transocular width 1.49; interocular width 0.80; frons basal width 0.77; frons length 1.01; pronotum median length 0.67; width between humeri 1.68; mesonotum median length 1.07; mesonotum maximum width 1.32; forewing length 5.61; forewing maximum width 1.49.

General color. Body pale yellow with orange maculae ( Figs 11–13 ). Crown yellow, with two pairs of orange maculae, one subtriangular and close to anterior margin, other, subquadrangular and close to posterior margin, adjacent to compound eyes ( Fig. 1 ); ocelli yellow ( Figs 1–3 ); gena and lorum pale yellow; frons and clypeus orange ( Figs 2–3 ). Pronotum with lateral margins pale yellow, central and mid-lateral region, orange. Mesonotum whitish with two ferruginous lateral subtriangular stains, and a central ferruginous longitudinal stripe, narrowed at base and enlarged at apical half ( Fig. 1 ). Forewings and hindwings semi-hyaline, yellowish, with yellow venation ( Fig. 4 ). Mesothoracic pleura pale yellow. Legs orange, tibiae and tarsi distal portion greenish.

Description. External morphological characters as in generic description, except: forewings about 3.5 times longer than its maximum width; venation weakly visible ( Fig. 4 ). Hind leg femoral formula 2+2+1. Male genitalia. Pygofer, in lateral view, enlarged basally, apical half slightly narrowed towards rounded apex; with macrosetae on middle portion of ventral margin and apex ( Fig. 5 ). Subgenital plates enlarged at basal two-thirds, lateral margins with preapical constriction, narrowed at apical third; separated only in apical quarter; dorsal surface with grouped setae on median portion and ventral surface with sparse setae at apex ( Fig. 6 ). Style without preapical lobe; lateral margins smooth; apex truncated and sclerotized, moderatly curved ventrally; with a pair of setae on ventral preapical portion ( Figs. 7, 8 ). Connective Y-shaped; about half length of style ( Fig. 8 ). Aedeagus with robust preatrium, corresponding to one third of total length of aedeagus, articulated to connective ( Fig. 9 ); in lateral view, curved, Sshaped, shaft with apical fifth abruptly curved ventrally, apex slender and pointed; dorsal apodeme absent; one pair of spiniform dorsal preapical processes forming “V” in ventral view; gonopore apical ( Figs. 9, 10 ). Anal tube membranous, with pair of moderately elongated basiventral processes, with apices slightly curved and sclerotized, reaching posteroventral margin of pygofer ( Fig. 5 ).

Female unknown.

Geographical distribuition. Brazil (Amazonas).

Specimens examined. Male holotype (INPA), with following labels: “ BRASIL, Amazonas, Manaus, Rod. AM 0 10 km 50, ZF-2, km 14, Torre, 02°35’21’’S; 60°06’55’’W ”, 3.iii.2011, 18–21:00h, Arm. luz dossel 40m de altura, F.F. Xavier Filho, J.T. Câmara & P. Dias leg. ”; 1 male paratype, same data (INPA).

Holotype condition. Thorax ventrally glued to a triangle, middle and hind legs missing, except for the coxa. Left forewing with apex of the third apical cell broken. Right hindwing with anal margin broken. Abdomen dissected.

Etymology. The species name is allusive to the curvature of the aedeagus, which easily differentiates it from the other species of the genus.

Comments. Tetralidia curvipenis sp. nov. resembles T. prolata by the pattern of coloration of the pronotum; the subgenital plates enlarged in the basal two-thirds and narrowed in the apical third; and the styles with one pair of preapical setae. The new species also resembles T. admirabilis by the pygofer with an enlarged base, narrowing toward the apex starting from the posterior half, and by the anal tube, with long basiventral processes. However, T. curvipenis differs from both species, in having the subgenital plates with setae on the dorsal surface, the style with the apical third moderately curved ventrally, the connective Y-shaped, and the aedeagus curved, S-shaped, and without a dorsal apodeme.

Figures

FIGURES 1 – 10. Tetralidia curvipenis 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, dorsal view.

FIGURES 11 – 13. Tetralidia curvipenis sp. nov., male holotype: 11, dorsal view; 12, lateral view; 13, ventral view.