Sundarion notabile Souza & Rothéa, 2005

Creão-Duarte, Antonio J. & Sakakibara, Albino M., 2016, Two new species of Sundarion (Hemiptera: Membracidae: Darninae) and taxonomic notes on two congeneric taxa, Zoologia (e 20150119) 33 (1), pp. 1-7 : 4

Sundarion notabile Souza & Rothéa, 2005

Figs. 9-12 , 23

Sundarion notabile Souza & Rothéa in Creão-Duarte, Souza & Rothéa, 2005: 95.

This species was described based on a single male specimen collected in Sinop, state of Mato Grosso. It was diagnosed as follows: “supra-humeral horns reddish-brown, short, spatulate, tricarinate, directed outwards and discreetly upwards surpassing a little the level of pronotum. Forewings entirely hyaline, with well defined veins”.

Recently we found five additional specimens of this species from the type locality (4 males and 1 female). The following description of the female is based on this material.

Diagnosis. Head yellowish-brown; pronotum yellowish-brown, variegate dark-brown on metopidium and dorsum, dark markings more dispersed anteriorly; supra-humeral horns dark-brown, relatively short, strongly divergent, more or less parallel, abrupt and truncate at apex, posterior angle acute; posterior process with distinct black spot at each side, near lateral margins.

Measurements (in mm). Female/male. Total length 9.88/8.60; length of pronotum 8.48/7.40; width of head 4.40/3.60; length of head 1.94/1.52; distance between humeral angles 4.40/3.60; distance between apices of supra-humeral horns 6.72/5.72.

Description. Female ( Figs. 9, 10, 12 ). Head triangular (Fig. 12), about twice wider than long, yellowish-brown, thin median line and around each ocellus, brown; vertex with surface smooth, slightly depressed near ocelli, superior margin widely arched; eyes ovoid; ocelli slightly closer to each other than to eyes, situated just bellow transocular line; supra-antennal ledges flat with margins straight; frontoclypeus ovoid extended about half its length bellow margins of supra-antennal ledges. Pronotum ( Figs. 9-10 ) yellowish-brown, variegated with dark-brown, with dots more dispersed on metopidium than on dorsum; supra-humeral horns dark-brown towards apex, relatively short, about 2x longer than wide at base, flattened, tricarinated, strongly divergent, almost parallel-sided, truncate at apex, with posterior angle pointed; posterior process low, dorsal line descending straight from metopidium to distal apex, apical third strongly constricted laterally, subulate and acuminate, terminating at level of fifth apical cell of forewings; sides of posterior process at middle visibly clearer with a distinct blackish-brown spot close to margins which are parallel to internal margins of forewings. Forewings ( Fig. 9 ) transparent, colorless, except brown smoked spot throughout second apical cell; five apical and two discoidal cells, transversal veins s, r-m, and 2 m-cu present. Undersurface of thorax and legs brown; abdomen yellowish-brown.

Material examined. “ BRASIL. Mato Grosso /State. Sinop xii.1976 / M. Alvarenga leg.” 4 males and 1 female (DZUP).

Distribution. BRAZIL, Mato Grosso.

Remarks. Larger than male, otherwise identical ( Fig. 11 ). The color of head and pronotum varies among individuals, and may be darker with indistinct spots or lighter with contrasting dark markings; the same for the black spot on posterior process, well visible or diffused. Moreover, the apical spot of the forewings may be present or not. The male genitalia ( Fig. 23 ) are similar to those of Sundarion flavopiceum sp. nov. ( Fig. 19 ) with slender aedeagus, but the subgenital plate is a little shorert, not compressed laterally.

Figures

Figures 9-15. Habitus. (9-10,12) Sundarion notabile, female; (11) male; (13-15) S. compressicornis comb. nov.: (13-14) female; (15) male. Scale bar = 5 mm.

Figures 16-25. Habitus and male genitalia. (16-18) Sundarion flavum: (16-17) female; (18) male; (19-20) S. flavopiceum sp. nov.; (21-22) S. marmoratum sp. nov.; (23) S. notabile; (24) S. compressicornis comb. nov.; (25) S. flavum. Scale bar = 5 mm.