Acanthoventris faustopsaltrius Ruschel, 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 faustopsaltrius Ruschel sp. nov.

Fig. 13

Type locality.

Itatiaia, Rio de Janeiro, Brazil.

Type material.

Holotype: male (Fig. 13A ) ( DZRJ), RJ, Itatiaia, Penedo , Tres Bacias , Rio das Pedras , 22°24'33.0"S, 44°33'08.0"W, 706 m de altitude, Luz Branca, 6.III.2008, JL Nessimian, RB Braga, MR Souza, LL Dumas .

Etymology.

This was the last species included in this study. Latin: faustus, lucky; psaltria, female harpist.

Diagnosis.

The species can be distinguished from all other species of Acanthoventris gen. nov. by the following combination of features: apex of postclypeus in m-shaped with a black band in m-shaped; anterior margin of head convex; labium long, reaching the apex of the sternite II; operculum covered by golden setae, obtuse and long, covering the timbal cavity, the apex reaching the auditory capsule; sternites VII sub-triangular covered by golden setae; lateral branches of uncus convex bud-like with grooves. This species has a similar morphology to A. charrua sp. nov. but can be distinguished by the lateral margin of the timbal cover slightly concave (near of the posterior margin of operculum), the presence of golden setae, the uncus shape and the theca with the apex of the ventral thecal process in a half-moon shaped.

Color.

Body tawny with the head, thorax and abdomen marked with black, covered by golden setae.

Description.

Head (Fig. 13 B ): black setae over the head; head with a transverse slender black band departing from each eye, extending through the area of the ocelli, the base of the eyes and the te apex of postclypeus in m-shaped; anterior margin of head convex; antennae with a marked with black scape and pedicel, and flagellum lighter at apex; postclypeus (Fig. 13 C ) unmarked, oval in ventral view, flat in lateral view, the apex not prominent in dorsal view relative to the supra-antennal plate; longitudinal groove inconspicuous; anteclypeus and carina tawny, lorum black; mentum and labium tawny; labium long, reaching the apex of the sternite II, black at the apex. Pronotum (Fig. 13 B ): covered by black setae; lateral and sub-lateral lobes with wrinkles; lateral part of pronotal collar slightly surpassing the eyes. Mesonotum (Fig. 13 A ): submedian sigillae marked with black, lateral sigillae marked with black at anterior margin; scutal depression marked with castaneous; basisternum 3 (Fig. 13 D ) with well developed and narrow protuberances relative to the median insertion, closely spaced; posterior margin in an obtuse angle; cruciform elevation covering the tergite 1; apex of the posterior projections of the cruciform elevation obtuse; operculum (Fig. 13 E ) covered by golden setae, obtuse and long, covering the timbal cavity, the apex reaching the auditory capsule, the internal angles short and narrow, the apex obtuse and widely spaced, anteromedian margin concave anteriorly to the internal angles, the lateral margin convex, posterior margin slightly straight; meracanthus surpassing the posterior margin, gutter present in all margins; legs and tarsus tawny; pretarsal claw black at apex; wings hyaline (Fig. 13 A ); forewings: basal cell opaque anteriorly, and the basal vein of the second apical cell oblique; apical cell 2 half of length of apical cell 1; hindwings: radius vein straight. Abdomen subcylindrical, the length equivalent to the combined length of the head and thorax in dorsal view (Fig. 13 A ); timbal cover (Fig. 13 F ) flat, the apex acute not reaching the lateral metascutellar plate, middle third of anteromedial margin concave, ventral anterior margin slightly concave (near of the posterior margin of operculum); anterior margin of tergites 2 to 8 marked with black; sternites II to VIII covered by golden setae; sternite VII (Fig. 13 G ) sub-triangular, the lateral margin convex becoming slightly straight toward the apex, the posterior margin emarginate. Uncus (Fig. 13 H, I ): lateral margin slightly straight becoming tightly convex in the ventral apophyses; lateral branches of uncus convex bud-like with grooves, the internal margin slightly rectangular; ventral apophyses with internal margin forming a sub-rectangular lobe distally directed; posterior margin forming sinuous with an obtuse angle posteriorly directed. Pygofer (Fig. 13 J ) sub-cylindrical, the basal lobe reaching the lateral branches of uncus. Theca (Fig. 13K-M ) with the apex of the ventral thecal process in a half-moon shaped; vesica tightly extruded and adorned with cornuti in the inner and outer surfaces. - Female: Unknown.

Measurements (in millimeters).

Holotype male. Length of body: 26.28; width of head including eyes: 9.13; length of the head: 1.84; width of pronotum including pronotal collar: 8.54; length of pronotum including pronotal collar: 3.27; width of mesonotum: 7.37; length of mesonotum: 7.94; length of forewing: 40.67; width of forewing: 14.62; length of hind wings: 20.39.

Distribution.

Brazil (Rio de Janeiro).

Figures

Figure 13. Acanthoventris faustopsaltrius sp. nov., holotype 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 rigth lateral view; L Aedeagus in left lateral view; M Aedeagus in ventral view. Scale bars: A = 1 cm; B-G, J = 1 mm; H, I, K-M = 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.