Sundarion flavopiceum Creão-Duarte & Sakakibara, sp. nov., 2016

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 : 2

Sundarion flavopiceum Creão-Duarte & Sakakibara, sp. nov.

Figs. 1-4 , 19-20

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Diagnosis. Pitchy-brown with yellow dots on head and metopidium; sides of pronotum with large oblique yellow spot; supra-humeral horns short, triangular, slightly flattened dorso ventrally.

Measurements (in mm). Female/male. Total length 11.20/10.20; length of pronotum 10.00/8.60; width of head 4.76/4.28; length of head 2.00/2.00; width of pronotum between humeral angles 4.80/4.32; distance between apices of supra-humeral processes 6.72/6.00.

Description. Holotype female ( Figs. 1-3 ). Head yellow with irregular pitchy-brown markings; pronotum pitchy-brown with yellow dots, more dispersed over metopidium, and extended to dorsum between supra-humeral horns and behind eyes; large yellow spot on each side of pronotum, more or less fusiform, oblique, extended from base of supra-humeral horns and reaching lateral margins; apex of supra-humeral horns and of posterior process piceous. Tegmina hyaline, with smoked-brown area at apex, covering second apical cell and extended to limbus. Ventral surface of thorax, part of ovipositor, coxae, and part of femora black; sides of abdomen and legs yellowish-brown.

Head triangular ( Fig. 1 ), 2.3x wider than long; vertex almost flat, smooth, weakly sculptured and striate, coronal suture distinctly grooved; superior margin arched, slightly sinuate at middle; ocelli located just below transocular line, closer to each other than to eyes; supra-antennal ledges straight, almost horizontal; frontoclypeus ovoid, as long as wide, extended for about half its length beyond lower margins of vertex, apex rounded and hairy. Pronotum ( Figs. 2-3 ) shiny, roughly punctured, punctures on metopidium smaller and closer to one another than those of posterior process, larger and sparse; supra-humeral processes relatively short, triangular, acute apically, slightly flattened dorsoventrally, about as long as their basal width, directed outwards, tips slightly deflected backwards, distance between tips 1.5x width between humeral angles; posterior process, in lateral view, highest on dorsum just after supra-humeral horns, descending in almost straight line towards apex, posterior third distinctly subulate and prismatic, extending until apex of fifth apical cell of forewings; median carina obsolete, smooth and rounded; lateral margins close and parallel to internal margins of forewings. Forewings ( Fig.2 ) entirely exposed; veins R and M+Cu confluent basally; two discoidal cells, the external (1rst R3) much smaller; five apical cells; veins s, r-m, and 2 m-cu present. Legs with two rows of cucullate setae on ventral side of pro- and mesothoracic femur and tibia.

Male ( Fig. 4 ). Slightly smaller than female. Dark-brown, dots and lateral spot yellowish-green. Genitalia ( Figs 19-20 ): pygofer more or less triangular with lateral plates distinct and well developed, slightly pointed dorsally; subgenital plate elongate, about 3x longer than wide in lateral view, strongly compressed laterally; aedeagus U-shaped, slender, tapering towards apex, with minute teeth on anterior surface, and another two larger before apex; styles recurved, hook-like.

Material examined. Holotype female. BRAZIL, Pará. “Brasil Pará | Serra Norte | MANGANÊS | COL:[ETA]: NOTURNA | 27-I-1986 ” “Brasil Pará | H. Andrade ” ( MPEG) . Paratypes: 1 female, with same label data as the holotype, except 26-X-1985. 1 female, “ GUYANE FRANÇAISE / Piste de Bélizon/PK15+20 – 19/9/2006 ” ; 1 male, “ GUYANE FRANÇAISE / Mont Itoupé/Maripassoula/ Camopi / 30/II/2014. S.E.A.G.” ( DZUP) .

Comments. This species differs greatly from others in the genus, especially in the shape of supra-humeral horns, which are short and acute, and the dark-brown coloration, with yellow dots and a large yellow spot on each side of the posterior process, closely resembling Alcmeone picea ( Fairmaire, 1846) . The examined male specimen is much darker than others (probably because it was collected recently), so the lateral spot and yellowish-green dots on the pronotum are more evident. The genitalia ( Figs. 19-20 ) are similar to those of Sundarion flavum ( Fairmaire, 1846) ( Fig. 25 ), in having the subgenital plate elongate but much more compressed laterally.

Figures

Figures 1-8. Habitus. (1-4) Sundarion flavopiceum sp. nov.: (1-3) female, holotype; (4) male; (5-8) S. marmoratum sp. nov.: (5-7) female, holotype; (8) 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.