Niborskiana gracilis (Monte) Monte, 2012

Montemayor, Sara I., 2012, Niborskiana: a new genus to accommodate Tigava gracilis Monte and Tigava notabilis Drake (Hemiptera: Heteroptera: Tingidae), Zootaxa 3202, pp. 51-57 : 52-55

Niborskiana gracilis (Monte) n. comb.

( Figs. 1 , 3–6 )

Tigava gracilis Monte, 1940a: 379 ; 1940b: 144; 1944: 159; Drake & Ruhoff, 1965: 388.

Diagnosis. End of posterior process acute ( Fig. 3 ); punctures of posterior process of similar size as pronotal punctures; discoidal area between 4 and 5 times longer than wide; hemelytra approximately 3.5 times longer than wide.

Redescription ( Fig. 1 ). General colour pale reddish brown. Head ( Figs. 3, 4 ) reddish brown; cephalic spines yellowish, blunt; clypeus reddish brown; bucculae with scattered large areolae. Rostrum yellowish. Antennae shorter than the body; scape and pedicel brown, basiflagellomere yellowish, distiflagellomere black except base yellowish. Scape slightly more than twice the length of the head, glabros; pedicel glabros; basiflagellomere with scattered long setae; distiflagellomere wider in distal third, longer than scape, with abundant long semidecumbent setae, intermixed with short, scattered, semierect setae.

Pronotum ( Fig. 3 ) yellowish brown, coarsely pitted; collar yellowish with two rows of areolae; callus dark brown, glabrous; lateral carinae low, lower on pronotal disc, subparallel posteriorly; punctures of posterior process of similar size as those of pronotal disc; posterior process with acute end. Thoracic sterna reddish brown; rostral laminae as in Figure 5 .

Hemelytra ( Fig. 6 ) yellowish, with a mediolongitudinal dark area extending to the apex of the sutural area enclosing an area wherein the vein as well as the cells are paler; discoidal area dark brown except for apex, between 4 and 5.5 times longer than wide, four rows of areolae at maximum width.

Measurements. Females (N= 2). Body length 4.40–4.53; Scape: 0.58–0.64, pedicel: 0.16–0.16, basiflagellomere: 2.27–2.18, distiflagellomere: 0.64–0.61; Antennal proportions: 0.16–0.18: 0.04–0.04: 0.62–0.61: 0.17– 0.17; Head length: 0.28–0.30, width: 0.35–0.35; Pronotal length: 1.79–1.79, width: 0.93–0.93; Hemelytra length: 3.53–3.54, discoidal area length: 1.28–1.41, width: 0.29–0.29.

Material examined. 2 Ƥ, C. J. Drake, Tigava gracilis det. Drake ( USNM).

Distribution. Brazil.

Host plant. Fabaceae .

Comments. In the original description ( Monte 1940a), only one cephalic spine is mentioned. But the material examined as well as the paratype whose photographs were studied have three cephalic spines, although the occipital spines are extremely short. The holotype of this species is not deposited in Monte´s collection at the Museu Nacional (Luiz Antônio Alves Costa, personal communication), so it is probably lost.

Figures

FIGURES 1 – 2. Habitus. 1, Niborskiana gracilis (Monte); 2, Niborskiana notabilis (Drake). Scale bar = 1.0 mm.

FIGURES 3 – 6. Niborskiana gracilis (Monte) n. comb. 3, Head and pronotum, dorsal view; 4, Head, lateral view; 5, Rostral channel; 6, Hemelytra. Scale bar = 0.5 mm.