Tetralidia prolata ( Chiamolera & Cavichioli, 2004 ) Chiamolera & Cavichioli, 2004

Marques-Costa, Ana Paula & Cavichioli, Rodney Ramiro, 2008, Tetralidia gen. nov., a new neotropical genus of Neocoelidiinae (Hemiptera, Cicadellidae), Zootaxa 1892, pp. 26-34 : 31-32

Tetralidia prolata ( Chiamolera & Cavichioli, 2004) comb. nov.

( Figures 1–9 , 22 )

Cocoelidia prolata Chiamolera & Cavichioli, 2004: 797 –799 (diagnosis, description, distribution, figures 1–8, photo).

Diagnosis. Pygofer with apical half narrowed and prolonged, microsetae set along ventral and posterior margins ( Fig. 4 ); aedeagus with apical pair of small lateral lamellae ( Figs 8–9 ); anal tube with pair of hooklike basiventral processes ( Fig. 4 ).

Measurements (mm). Male holotype: total length 8.30; crown median length 0.75; transocular width 1.75; interocular width 1.0; pronotum median length 0.75; width between humeri 1.95; scutellum median length 1.50; scutellum maximum width 1.35; forewing length 6.20; forewing maximum width 2.0; frons basal width 0.80; frons length 1.0.

Coloration. Body yellow with orange maculae. Crown with two pairs of dark-orange maculae, one close anterior margin and another at basal third, linked by pale-orange macula. Frons with median orange stripe. Antennal scape orange ( Fig. 2 ). Pronotum with anterior, lateral and posterior margins with pale-orange stripes and three longitudinal dark-orange stripes, one at middle and one on each side. Scutellum with three darkorange stripes, continuing from pronotum, and apex pale-orange ( Fig. 1 ). Forewings yellow and hyaline with yellow veins ( Fig. 3 ). Hindwings hyaline. Legs yellow with concolorous setae.

Description. Structural characters as in generic description, except: forewings about three times longer than greatest width; venation weakly visible ( Fig. 3 ). Male genitalia. Pygofer, in lateral view, wide basally, strongly narrowed at apical half; with rounded apex, and without processes or teeth; without macrosetae, ventral margin of apical half and apex with microsetae ( Fig. 4 ). Subgenital plates with basal two-thirds enlarged, lateral margins constricted preapically, apical third narrowed; each plate about four times longer than its basal width; lateral margins of apical third and apex densely bristly ( Fig. 5 ). Style without preapical lobe, apex sclerotized and truncated, slightly curved ventrally ( Figs 6–7 ). Connective H-shaped, about half length of style ( Fig. 7 ). Shaft of aedeagus, in lateral view, with apical half slightly curved ventrally and sclerotized, with denticle on dorsal margin at beginning of curvature; apex with one preapical pair of small lateral lamellae ( Figs 8–9 ). Anal tube membranous with pair of hooklike basiventral processes ( Fig. 4 ). Female unknown.

Geographical distribution. Brazil (Rondônia).

Specimen examined. Male holotype (DZUP), with following labels: BRASIL, Rondônia, Ariquemes, Faz[enda] Rancho Grande, Cacaulândia, 16.xi.1991, Mielke leg./ DZUP 082925 / Holotypus.

Holotype condition. Pinned in the right side of the scutellum. Left antenna missing. Right hindwing broken. Legs in good condition. Abdomen dissected.

Comments. Tetralidia prolata comb. nov. is similar to Tetralidia admirabilis sp. nov. in external morphology and coloration, but the species can be easily separated by the male genitalia, especially as described in the diagnosis.

Figures

FIGURES 1 – 9, Tetralidia prolata (Chiamolera & Cavichioli, 2004) comb. nov., male holotype: 1, head, pronotum and scutellum, dorsal view; 2, head, frontal view; 3, forewing; 4, pygofer and anal tube, lateral view; 5, valve and subgenital plates, ventral view; 6, style, lateral view; 7, styles and connective, dorsal view; 8, aedeagus, lateral view; 9, apex of aedeagus, ventral view.

FIGURES 22 – 23, primary types, dorsal view: 22, male holotype of Tetralidia prolata (Chiamolera & Cavichioli, 2004) comb. nov.; 23, male holotype of Tetralidia admirabilis sp. nov. Scales = 1.0 mm.