Acanthoventris densusus (Boulard & Martinelli, 2011) Ruschel & Bianchi & Campos & Carvalho, 2023

Ruschel, Tatiana Petersen, Bianchi, Filipe Michels, Campos, Luiz Alexandre & Carvalho, Gervasio Silva, 2023, Total evidence analysis elucidates the tangled systematic scenario within Fidicinini (Hemiptera: Auchenorrhyncha, Cicadidae), Arthropod Systematics & amp; Phylogeny 81, pp. 35-77 : 35

Acanthoventris densusus (Boulard & Martinelli, 2011) comb. nov.

Figs 10 , 11

Guyala densusa Boulard & Martinelli, 2011: 224-225.

Type locality.

Espírito Santo, Brazil.

Type material.

Holotype male , allotype female , and paratype male ( MNHN), Brésil, État d’Espirito Santo, route de Vitoria à Belo Horizonte, Km 118, 850 m, le 05/03/1981, D. Bertrand réc. Don de M. Hervé de Toulgoëti . Muséum National d’Histoire Naturelle, Entomologie, Paris. ( Boulard & Martinelli 2011).

Diagnosis.

The species can be distinguished from all other species of Acanthoventris gen. nov. by the following combination of features: anterior margin of head slightly convex; abdomen dark castaneous with the tergites marked with black dorsally with pilus silver setae in both lateral margins of tergites 2 and 3 and in the anterior margin of tergite 6; ventral apophyses grooved with internal margin straight and posterior margin straight forming an sub-rectangular posteriorly directed. This species has a similar morphology to A. phoenix sp. nov. due the pilus silver setae in both lateral margins of tergites. A. densusus comb. nov. can be distinguished by the head, pronotum and mesonotum olive-green, the posterior margin of ventral apophyses without an acute-angled laterally and posteriorly developed; the anterior margin of the ventral thecal process without a slender projection.

Color.

Body yellowish ventrally; head, pronotum, and mesonotum olive-green marked with black; abdomen dark castaneous with the tergites marked with black dorsally.

Description.

Head (Fig. 10 B ): with a transverse wide black band departing from each eye, covering the posterior margin of eyes and the ocelli, reaching the apex of the postclypeus; silver setae in the posterior margin of eyes; anterior margin of head slightly convex; antenna with a yellowish scape, the pedicel and flagellum dark castaneous; postclypeus (Fig. 10 C ) rounded and unmarked in ventral view and flat in lateral view, the apex not prominent in dorsal view relative to the supra-antennal plate, longitudinal groove slender and shallow; anteclypeus and carina tawny; lorum black; mentum yellowshi; labium short, reaching the metacoxae and black at the apex (Fig. 10 D ). Pronotum (Fig. 10 B ): pronotal collar olive-green with pilus silver setae. Mesonotum (Fig. 10 A ): submedian sigillae marked with black, lateral sigillae marked with black at the anterior margin; scutal depression unmarked; basisternum 3 (Fig. 10 D ) with well-developed protuberances relative to the median insertion, both protuberances approximate forming an acute angle; posterior margin angled; cruciform elevation not covering tergite 1; apex of the posterior projections obtuse; operculum (Fig. 10 E ) obtuse, covering the timbal cavity and the apex reaching the auditory capsule, the internal angles very short, the apex obtuse and widely spaced, anteromedian margin concave anteriorly to the internal angle and marked with black, lateral margin convex and marked with black, the posterior margin straight; meracanthus reaches the posterior margin; gutter slender present in all margins; legs yellowish, becoming tawny distally; wings hyaline; forewings: the anterior portion of the basal cell opaque, second apical cell with half the size of the first apical cell or a little more than half, basal vein of the second apical cell oblique; hindwings: radius vein straight. Abdomen subcylindrical and almost oblong in some specimens, the length equivalent to the combined length of the head and thorax in dorsal view (Fig. 10 A ); timbal cover (Fig. 10 F ) flat, apex obtuse almost reaching the lateral metascutellar plate; middle third of anteromedial margin concave with pilus silver setae, ventral anterior margin slightly concave (near the posterior margin of the operculum); tergites 2 to 8 with the anterior margin marked with black; pilus silver setae in both lateral margins of tergites 2 and 3 and in the anterior margin of tergite 6; sternite VII (Fig. 10 G ) sub-triangular, the lateral margin concave, becoming convex toward the apex, the posterior margin slightly emarginate. Uncus (Fig. 10 H, I ): lateral margin straight becoming convex in the ventral apophyses; uncal dorsal crest fused and dorsally projected; lateral branches of uncus undeveloped, convex bud-like, the internal margin slightly concave; ventral apophyses grooved, ventrally developed originating from below the lateral branches of uncus, internal margin straight; posterior margin straight forming a sub-rectangular posteriorly directed. Pygofer (Fig. 10 J ) sub-cylindrical; the basal lobe long reaching the lateral branches of the uncus. Theca (Fig. 10 K, L ) dorsally developed with a ventral thecal process; vesica originates in a fissure at the distal third of the theca, extruded and ornamented with cornuti in both the inner and outer surfaces. - Female (Fig. 11 A - E): The female presents the same somatic characteristics as the male (Fig. 11 A ) except the operculum smaller (Fig. 11 C ) and the sternite VII (Fig. 11 D ) longer with straight lateral and posterior margins, the posterior with a sub-triangular groove in the middle portion. Dorsal beak of segment 9 a little longer than the ovipositor sheath (Fig. 11 E ), the ovipositor bears eight teeth.

Measurements (in millimeters).

N = 5 males and 5 females, mean (range). Length of body: male 26.79 (24.64-28.24), female 23.56 (22.49-24.34); width of head including eyes: male 10.83 (9.87-11.51); female 10.60 (10.11-11.06); length of the head: male 2.71 (2.58-2.82), female 2.79 (2.45-3.58); width of pronotum including pronotal collar: male 10.48 (9.36-11.09), female 10.28 (9.68-10.79); length of pronotum including pronotal collar: male 4.14 (3.63-4.41), female 3.91 (3.71-4.16); width of mesonotum: male 8.99 (8.29-9.39), female 8.83 (8.18-9.18); length of mesonotum: male 7.25 (6.74-7.69); female 7.02 (6.45-7.34); length of forewing: male 34.45 (32.77-36.84), female 34.89 (33.84-35.57); width of forewing: male 11.46 (10.51-12.53), female 11.14 (10.68-11.57); length of hind wings: male 17.44 (16.31-18.36), female 17.39 (16.85-18.07).

Material examined.

2 females ( DZUP), BRAZIL, Espírito Santo: Santa Teresa , 12.II.1966, C.T. & C. Elias ; female ( DZUP), idem, 27.II.1964, C. Elias leg. ; male ( DZUP), Minas Gerais: Viçosa, 21.II.1987, Pe. Moure col. ; 2 males ( INPA), São Paulo: Restinga , 20°43'31"S, 47°30'60"W, 21.III.2008, J.A. Rafael, F.F. Xavier F° & D.S. Amorim, 650 m ; male ( DZUP), Paraná: Curitiba , I.1982, A.M.S. e R.R.C.) ; male ( DZUP), idem, Cavichioli leg. ; male ( DZUP), idem, Sakakibara leg. ; 2 males, female ( DZUP), idem, 29.I.1966, Dept. Zoo leg. ; male, female ( DZUP), idem, 16.II.1966, C. Ext. D.Z.UF.P. ; male ( ZMUC), no data collect, Mus. Westerm ; male ( DZUP), Santa Catarina: Joinvile, 23.I.1972, Ex. Zoologia ; male ( MAPA), Rio Grande do Sul: Porto Alegre , 26.III.1951, Pe. Buck leg. ; female ( MAPA), Pelotas , I.1962 .

Distribution.

Brazil ( Espírito Santo, Minas Gerais*, São Paulo*, Paraná *, Santa Catarina*, Rio Grande do Sul*).

Figures

Figure 10. Acanthoventris densusus comb. nov., male. A Habitus in dorsal view; B Head and pronotum in dorsal view; C Head and pronotum in ventral view; D Thorax in ventral view; E Operculum in latero-ventral view; F Timbal cover in dorso-lateral view; G Sternite VII in ventral view; H Uncus in ventral view; I Uncus in lateral view; J Pygofer in latero-ventral view; K Aedeagus in left lateral view; L Aedeagus in latero-ventral view. Scale bars: A = 1 cm; B-D = 2 mm; E-G, J = 1 mm; H, I, K, L = 0.5 mm. Abbreviations: (aed) aedeagus; (as) anal styles; (at) anal tube; (bl) basal lobe of pygofer; (bp) basal plate; (cor) cornuti; (ds) distal shoulder; (lbu) lateral branch of uncus; (udc) uncal dorsal crest; (un) uncus; (va) ventral apophysis; (ve) vesica; (vtp) ventral thecal process.

Figure 11. Acanthoventris densusus comb. nov., female. A Habitus in dorsal view; B Thorax in ventral view; C Operculum in latero-ventral view; D Sternite VII, abdominal segment 9 and ovipositor sheath in ventral view; E Tergites and abdominal segment 9 in lateral view. Scale bars: A = 1 cm; B, D, E = 2 mm; C = 1 mm.