Scopogonalia dolixoura Leal & Creão-Duarte, 2016

Leal, Afonso Henrique, Creão-Duarte, Antonio José & Mejdalani, Gabriel, 2016, Taxonomic review of Scopogonalia Young, 1977 (Insecta: Hemiptera: Cicadellidae: Cicadellini) with description of six new species, Journal of Natural History (J. Nat. Hist.) 50 (23), pp. 1513-1542 : 1535-1536

Scopogonalia dolixoura Leal & Creão-Duarte sp. nov.

( Figure 9 )

Diagnosis

Light brown sharpshooters with head, in dorsal view, slightly produced anteriorly; male pygofer long and with dorsal margin, in lateral view, very concave; aedeagus with three dentiform processes on apical portion: two dorsolateral and one ventroapical.

Comment

The slightly produced head and the very concave shape of the male pygofer are autapomorphies of S. dolixoura ( Leal 2014) .

Type locality. Parque Estadual da Serra de Santa Bárbara, Pontes e Lacerda, Mato Grosso, Brazil.

Length. Male holotype, 6.5 mm.

External morphology

Head ( Figure 9A ), in dorsal view, slightly produced anteriorly, median length of crown about 1/3 interocular width and 1/5 transocular width; anterior margin broadly rounded in dorsal view; ocelli located behind anterior eye angles, each closer to adjacent anterior eye angle than to median line of crown, situated at pair of slight concavities. Pronotum ( Figure 9A ) with width less than transocular width; lateral margins parallel; posterior margin slightly concave; dorsopleural carinae complete and oblique; disc slightly striate, without setae; mesonotum with scutellum not striate. Fore wings ( Figure 9A ) completely hyaline. Hind legs with femoral setal formula 2:1:1; length of first tarsomere approximately equal to combined length of two more distal ones.

Coloration

Crown, pronotum and mesonotum light brown, fore wings amber ( Figure 9A ). Crown with dark brown round maculae on and around ocelli ( Figure 9A ). Dark brown stripe on lateral body portion, beginning on prothorax right behind eye and extending to tergum of abdomen ( Figure 9A ). Fore wings with dark brown stripe between radius and cubitus, enforcing the one on abdomen, visible by transparency of wings ( Figure 9A ). Face and ventral body surface light brown.

Male genitalia

Pygofer ( Figure 9B ), in lateral view, strongly produced posteriorly, slender; dorsal margin strongly concave; ventral margin slightly concave; apex obliquely truncate; numerous macrosetae on narrow apical portion and scattered along margins; slender process arising from ventral margin and extending posterodorsally, not attaining apex of pygofer. Subgenital plates ( Figure 9C ) subtriangular, not extending as far posteriorly as apex of pygofer, gradually tapered towards narrow apical portion; macrosetae multiseriate near base, becoming uniseriate towards apex. Styles ( Figure 9D ) with preapical lobe, not extending as far posteriorly as apex of connective, twisted, apex obliquely truncate, with strong angular projection; preapical lobe and angular projection directed ventrally. Connective ( Figure 9D ) Y-shaped. Aedeagus ( Figure 9E ), in lateral view, directed posteriorly and curved dorsally; apical portion with three small dentiform processes: ventral one and two dorsolateral ones. Paraphyses ( Figure 9E ) paired, symmetrical, extending below shaft of aedeagus; rami curved dorsally, apices slightly curved towards one another.

Female. Unknown.

Etymology

The species epithet, dolixoura (from Greek: dolixouros, with long tail), refers to the long and slender male pygofer.

Type material

Holotype: male, ‘Parque [ Estadual da Serra ] de Santa Bárbara \ Pontes [e] Lacerda-MT [Mato Grosso state]\ Santa Rita-03-07/VII/02’, ‘ 16°02’34”S \ 59°16’22”N [W]\ Cavichioli leg’ ( DZUP).

Comparative notes

Scopogonalia dolixoura externally resembles S. agkistroides , S. altmanni , S. echinura and S. oglobini due to the completely hyaline fore wings and the dark brown colour of the lateral body portions. Its aedeagus ( Figure 9E ) is similar to that of S. echinura ( Figure 5 ) because both bear three dentiform processes on the apical portion: a ventral one and two dorsolateral ones. However, the aedeagus of S. dolixoura is longer beyond the dorsal curvature than that of S. echinura and its dorsolateral processes are more distant from the apex. It differs from this and the other known species by the long and slender male pygofer with the dorsal margin very concave.

Figures

Figure 5. Scopogonalia echinura Young, 1977. Aedeagus and paraphyses, lateral view. Arrow indicates the pair of processes that were not described or illustrated by Young (1977). Scale bar: 0.5 mm.

Figure 9. Scopogonalia dolixoura sp. nov. (A) Dorsal habitus; (B) male pygofer, lateral view; (C) valve and subgenital plates, ventral view; (D) styles and connective, dorsal view; (E) aedeagus and paraphyses, lateral view. Scale bars: A = 1.0 mm; B–D = 0.5 mm; E = 0.25 mm.