Anaulacomera (Oecella) zebrina, Fianco, 2021

Fianco, Marcos, 2021, Nine new species of the Anaulacomerina subtribe of katydids (Orthoptera Tettigoniidae: Phaneropterinae: Phaneropterini) from Brazil, Zootaxa 4952 (1), pp. 33-54 : 48

Anaulacomera (Oecella) zebrina sp. n.

Figures 1A , 10 , 12D

Diagnosis: The new species can be readly distinguished from its congeners by the combination of the following characters: apex of male cerci cup-like with three processes, the lateral spiniform; tegmina bearing eight consecutive dense and distanced cross veins, creating a zebra pattern; a cerciform process in lateral of subgenital plate.

Etymology: The specific name is concerning the coloration pattern and morphology of the wings.

Description: Holotype male ( Fig. 10 , 12D ): Small, greenish-yellowish, probably green in life ( Fig. 10A ). Head ( Fig. 10B, C ): Fastigium of the frons triangular; with a lemon green ocellus on middle. Antennal sockets a little near apex of the fastigium of the frons. Fastigium of the vertex hourglass shaped; dilatated at apex; with a small sulcus on middle that not reaches apex. Thorax: Pronotal disc ( Fig. 10C ) with brownish punctations; anterior margin concave; furcal sulci very compressed laterally; with the same width from anterior to posterior region; with a transversal sulcus between prozona and metazona. Lateral lobes ( Fig. 10D ) smaller than pronotal disc, longer than wide; white with brownish punctations; anterior margin almost straight, posterior margin convex and semilunar; humeral sinus presenting an angle of ca. 90º. Tegmina ( Fig. 10A , 12D ) shorter than hindwings; anal and costal margins parallel; with six consecutive densified and distanced cross veins, creating a zebra pattern, this restricted between CuA and M, these veins are surrounded by big cells and interspersed by small cells; Sc curved; R with four major bifurcations that reaches costal margin; M long, following R in all extension; MP apparently leaving M in the distal fourth of the tegmina; MA with one bifurcation; CuA very long almost straight, with none bifurcations; five veins between M and CuA, and one between MP and CuA; stridulatory area with brownish stains ( Fig. 10F, G ). Mesobasisternum ( Fig. 10E ) a little elevated on middle; anterior margin concave; lateral lobes small, triangular, very distant in the posterior margin. Metabasisternum ( Fig. 10E ) triangular; anterior margin convex; lateral lobes demilune shaped. Abdomen: Tergite X fused to epiproct; with a medial and large projection that curves downwards, as large as long, apex bifid. Cercus ( Fig. 10H, I ) long; curved upwards; with two apical lamellar lobes (ventral and dorsal), and one triangular with a spine (lateral), having a roundly concave edge between them, giving a shallow cup-like aspect. Subgenital plate ( Fig. 10H, I ) inconspicuous, triangular; with a lateral process, almost as long as cercus, straight until distal fifth where it’s laterally curved and terminating in a spine.

Type Material: Holotype male, ‘JACARECANGA \ Pará Brasil X–1959 \ M. Alvarenga leg.’, ‘ DZUP 366681 ’.

Measurements (mm): Holotype: BL: 12.4; TegL: 22.3; HW: 2.4; PrL: 2; PrH: 2.2; FLiii: 14; TLiii: 18; SPL: 0.5; CL: 2.2; SFL: 1; TN: 33.

Remarks: The subgenus A. ( Oecella ) has two species groups and three species without unassigned, the new species belongs to the Juanchoi species group, because it presents the apex of the male cerci cup-shaped. A. (O). zebrina sp. n. is probably closely related to A. (O.) juanchoi Cadena-Castañeda , since the male cerci are not so long and thin as in A. (O.) redunca Gorochov. The new species can be separated from both species for bearing three processes in the apex of male cerci, instead of two, as in the two species of the Juanchoi group. A remarking characteristic is the tegmen pattern, with eight consecutive densified and distanced cross veins, creating a zebra pattern. Other remarkable characteristics are the presence of a ventro-lateral cerciform process on subgenital plate, and three processes in the apex of the cerci, very similar to A. (O.) mediastina sp. n., and this shows how close both new species are. This is the first record of Juanchoi group in Brazil ( Fig. 1A ), but also like the others species of the group, A. (O.) zebrina sp. n. inhabits the Amazon Forest.

Figures

FIGURE 1. Occurrence map from the new species of Anaulacomerina from Brazil. A: circles: species from southeastern, north and mid-central Brazil; star: species from Parana State, southern Brazil; B: circles: species from Paraná State, São José dos Pinhais and Morretes municipalities.

FIGURE 10. A. (Oecella) zebrina sp. n. A: male habitus; B: head, dorsolateral view; C: head and pronotum, dorsal view; D: pronotum, lateral view; E: meso and metabasisternum, ventral view; F: stridulatory area, dorsal view; G: stridulatory file; H: terminalia, lateral view; I: terminalia, ventral view. Scale bars: A = 1 cm; B–F, H–I = 2 mm; G = 1 mm.

FIGURE 12. Left tegmina of Anaulacomera (Oecella) and Separatula species. Analaucomera (O.) marshae sp. n. (A), A. (O.) mediastina sp. n. (B), A. (O.) spirala sp. n. (C), and A. (O.) zebrina sp. n. (D); Separatula araguaiensis sp. n. Veins: black = Sc; green = R; blue = M; red = Cu; yellow = A1.