Acanthoventris viridinotatus 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 viridinotatus Ruschel sp. nov.

Fig. 22

Type locality.

Alto Caparaó, Minas Gerais, Brazil.

Type material.

Holotype: male ( DZRJ) (Fig. 22A ), Brasil, MG, Alto Caparaó, PN do Caparao Pano Branco 20°25'11.60"S, 41°50'44.80W, 1306 m, 17.I.2014, Nessiman et al .

Etymology.

The specific name refers to the dorsal color of species (head, pronotum and mesonotum). Latin: viridis, green. Latin: nota, mark.

Diagnosis.

The species can be distinguished from all other species of Acanthoventris gen. nov. by the following combination of features: head and thorax yellow greenish; anterior margin of head slightly convex; labium short, not reaching the base of basisternum 3; apex of timbal cover short and directed to the base of hindwings; middle third of anteromedial margin slightly concave, almost straight. This species has a similar morphology to A. phoenix sp. nov. due the body size, operculum shape and bands, but A. viridinotatus sp. nov. can be distinguished by the absence of pilus setae in both lateral margins of tergites 2 to 7, anteclypeus and carina tawny, labium shorter, the uncus shape. The ventral thecal process in A. viridinotatus sp. nov. has two sclerotized projections toward the anterior margin, but in A. phoenix sp. nov. the anterior margin presents an expansion with a slender projection.

Color.

Head and thorax yellow greenish marked with black, and abdomen tayny marked with black.

Description.

Head (Fig. 22 B ): with a transverse slender black band departing from each eye, extending through the area of the ocelli; base of the eyes marked with black with silver setae; anterior margin of head slightly convex; antennae with a green scape, and the pedicel and flagellum marked with black; postclypeus (Fig. 22 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 slender and shallow; anteclypeus and carina tawny, lorum black; mentum and labium tawny; labium short, not reaching the base of basisternum 3, black at the apex. Pronotum (Fig. 22 B ): with lateral and sub-lateral lobes with wrinkles and black setae; slightly marked with green in the middle; paranota yellowish marked with green with black setae. Mesonotum (Fig. 22 A ): submedian sigillae marked with black, lateral sigillae marked with black at anterior margin; scutal depression unmarked; basisternum 3 (Fig. 22 D ) with well developed 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. 22 E ) obtuse and long, covering the timbal cavity, the apex reaching the auditory capsule, the internal angles very short, the apex obtuse and widely spaced, anteromedian margin concave anteriorly to the internal angles, the lateral margin convex, posterior margin slightly straight; meracanthus reaches the posterior margin, gutter present in all margins; legs tawny becoming greenish distally; tarsus black; wings hyaline (Fig. 22 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. 22 A ); timbal cover (Fig. 22 F ) flat and short, the apex acute not reaching the lateral metascutellar plate directed to the base of hindwings, middle third of anteromedial margin slightly concave, almost straight, ventral anterior margin tightly concave (away from the posterior margin of operculum); tergites 2 to 4 with two black band at middle, and tergites 5 to 7 marked with black anteriorly; sternite VII (Fig. 22 G ) sub-triangular, the lateral margin slightly convex becoming slightly straight toward the apex, the posterior margin slightly emarginate. Uncus (Fig. 22 H, I ): lateral margin slightly straight becoming tightly convex in the ventral apophyses; lateral branches of uncus undeveloped, convex bud-like, away from the midline; the internal margin slightly convex; ventral apophyses grooved with the apices strongly sclerotized; internal margin forming a sub-rectangular distally directed and with the posterior apex salient; posterior margin inclined and with an acute angled lateral and posteriorly developed. Pygofer (Fig. 22 J ) sub-cylindrical; the basal lobe reaching the apex of ventral apophyses. Theca (Fig. 22K-M ) dorsally developed with the ventral thecal process with two sclerotized projections toward the anterior margin; vesica tightly extruded and adorned with cornuti in the inner and outer surfaces. - Female: Unknown.

Measurements (in millimeters).

Holotype male. Length of body: 20.41; width of head including eyes: 9.14; length of the head: 1.71; width of pronotum including pronotal collar: 8.91; length of pronotum including pronotal collar: 1.89; width of mesonotum: 7.65; length of mesonotum: 5.67; length of forewing: 28.88; width of forewing: 9.97; length of hind wings: 13.60.

Distribution.

Brazil (Minas Gerais).

Figures

Figure 22. Acanthoventris viridinotatus 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 left lateral view; L Aedeagus in right lateral view; M Aedeagus in ventral view. Scale bars: A = 1 cm; B-D = 2 mm; E-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.