Oragua unifasciata, Camisão, Beatriz M., Cavichioli, Rodney R. & Takiya, Daniela M., 2014

Camisão, Beatriz M., Cavichioli, Rodney R. & Takiya, Daniela M., 2014, Eight new species of Oragua Melichar, 1926 (Insecta: Hemiptera: Cicadellidae) from Amazonas State, Brazil, with description of the female terminalia of Oragua jurua Young, 1977, and new records for the genus, Zootaxa 3841 (4), pp. 501-527 : 520-522

Oragua unifasciata sp. nov.

( Figs. 1 H, 9 A–N)

Type-locality. Comunidade Lago Grande no Seringal do Recreio, Rio Gregório, Ipixuna, Amazonas State, Brazil. Size. Males, 8.5–8.75 mm, Females, 8–8.4 mm.

External morphology. Head ( Fig. 9 A) with median length ranging from 0.4 to 0.5 times interocular width and from 0.2 to 0.4 transocular width; crown not punctate. Ocelli ( Fig. 9 A) located on imaginary line between anterior eye angles. Antennal ledges with anterior margin oblique and slightly concave. Frons not flattened medially. Clypeus with lower portion oblique. Epistomal suture complete. Pronotum ( Fig. 9 A) width less than transocular width of head; lateral margins slightly convergent anteriorly; surface very weakly punctate and weakly rugose transversally. Mesonotum ( Fig. 9 A) weakly punctate; not rugose. Forewings ( Fig. 1 H) without membrane delimited; with five apical cells (R1 present); base of fourth apical cell more proximal than base of third; clavus and basal three-quarters of corium with very shallow punctures. Hindlegs with femoral setal formula 2:1:1; first tarsomere with length greater than combined length of two more distal tarsomeres; with two longitudinal regular rows of small setae on plantar surface. Other characters as in generic description.

Coloration. Body ( Fig. 1 H) dark brown dorsally and most of ventral region lighter brown. Crown with lateral thirds light brown; light yellow spots all over the surface, being larger and more numerous over lighter brown area. Frons dark brown with median longitudinal portion lighter brown; two yellow longitudinal stripes continuous to yellow region of the crown, not reaching epistomal suture. Pronotum ( Figs. 1 H, 9A) with two light yellow elongate lateral maculae near the anterior margin; light yellow spots over entire surface. Mesonotum ( Figs. 1 H, 9A) with light yellow spots. Forewings ( Fig. 1 H) with light yellow spots on clavus and basal half of corium; corium with light yellow transverse stripe over bases of anteapical cells.

Male genitalia. Pygofer ( Fig. 9 B) without processes; weakly produced; posterior margin truncate; macrosetae of different sizes on apical two-thirds. Valve ( Fig. 9 C) subtriangular. Subgenital plates ( Figs. 9 B, 9C) not extending posteriorly to apex of pygofer; irregular row of macrosetae along lateral margins. Styles ( Fig. 9 D) extending posteriorly beyond the apex of connective; preapical lobe weakly produced; preapical microsetae originating on ventral surface; apex truncate. Connective ( Fig. 9 D) V-shaped. Aedeagus ( Figs. 9 E) with slender basidorsal and basiventral apodemes; shaft, in lateral view, short, curved dorsally, with weakly pronounced lateral flanges. Membrane between aedeagus and anal tube with small setae. Paraphyses stalk ( Fig. 9 D), in dorsal view, slender and abruptly broadened at apical two thirds; rami robust and flattened, posterior margin serrate with large and irregular tooth-like projections, in dorsal view widely divergent with apex curved posteriorly, in lateral view ( Fig. 9 F) with base directed dorsally and apex curved posteriorly.

Female terminalia. Abdominal sternite VII ( Figs. 9 G, 9H) with posterior margin produced posteriorly; apex acute. Internal abdominal sternite VIII ( Fig. 9 I) slightly sclerotized and obliquely striate. Valvifers I ( Fig. 9 J), in lateral view, higher than longer; posterior margin produced posteriorly. Valvulae I ( Fig. 9 J), in ventral view, with bases with outer margins produced anteriorly ( Fig. 9 K); shaft, in lateral view, with sculpturing strigate dorsally becoming concatenate towards the apex, and imbricate ventrally. Valvula II ( Fig. 9 L), in lateral view, moderately broad, gradually tapered towards the apex, dorsal margin slightly arcuate, with approximately 43 primary teeth on dorsal margin, each tooth with secondary denticles on anterior and posterior margins ( Fig. 9 M); apex acute, with anteapical ventral denticles present ( Fig. 9 N).

Etymology. The species epithet refers to the single ivory transverse stripe on the forewing corium.

Notes. This new species is similar to O. stylata as they share the aedeagus shaft short and curved dorsally and the apically forcipate paraphyses.. However, the new species can be distinguished by the posterior margin of male pygofer truncate; styles with apex truncate; aedeagus with shaft shorter and with weakly pronounced lateral flanges at the apex. It can be distinguished from other Oragua by the following combination of characters: (1) body dark brown with pale spots over the crown, pronotum, mesonotum, clavus, and basal half of the corium, with a pale transverse stripe across the anteapical cells; (2) shaft of aedeagus, in lateral view, short, curved dorsally, with weakly pronounced lateral flanges; and (3) paraphyses stem, in dorsal view, slender and abruptly broadened at apical two thirds; rami robust and flattened, posterior margin serrate with large and irregular toothlike projections.

Specimens of the new species were collected by sweeping on a terra firme forest area, together with specimens of an undescribed Scoposcartula species. Interestingly, both share an almost identical color pattern.

Type-material. Holotype ♂, “ BRASIL: AM, Ipixuna, Rio | Gregório, Com[unidade]. Lago Grande | no Seringal do Recreio | 07°10’06”S 07°049’06”W 145m | 18–23.V.2011 sweep | Cavichioli, Gonçalves & Takiya” (INPA). Paratypes, ♂ and 2 ♀. ♂ [with damaged aedeagus] and ♀, same data as the holotype (DZRJ). ♀, same data as the holotype (INPA).

Figures

FIGURE 1. Dorsal habitus of eight new species of Oragua. A, Oragua alerochae sp. nov., male holotype; B, Oragua aurantimaculata sp. nov., male holotype; C, Oragua bella sp. nov., male holotype; D, Oragua copiosa sp. nov., male holotype; E, Oragua gracilenta sp. nov., male holotype; F, Oragua jau sp. nov., male holotype; G, Oragua schwertneri sp. nov., male holotype; H, Oragua unifasciata sp. nov., male holotype. Scale bars = 2 mm.

FIGURE 9. Oragua unifasciata sp. nov. A – F, Male holotype. G – N, Female paratype. A, Head, pronotum, and mesonotum, dorsal view; B, Pygofer, valve, and subgenital plates, lateral view; C, Valve and subgenital plates, ventral view; D, Styles, connective, and paraphyses, dorsal view; E, Aedeagus and segment X of anal tube, lateral view; F, Paraphyses, lateral view. G, Abdominal sternite VII, ventral view; H, Abdominal sternite VII, pygofer, and gonoplac, lateral view; I, Internal abdominal sternite VIII, dorsal view; J, Valvifer I and valvula I (right), lateral view; K, Base of valvulae I, ventral view; L, Valvula II (right), lateral view; M, Tooth of valvula II, lateral view; N, Apex of valvula II, lateral view. Scale bars in mm.