Zygoclistron ruschii Silva,

Silva, Daniela Santos Martins, Pereira, Marcelo Ribeiro, Domenico, Fernando Campos De & Sperber, Carlos Frankl, 2016, New species of Zygoclistron Rehn, 1905 (Insecta: Orthoptera: Acrididae: Copiocerinae) in the central corridor of the Atlantic Forest biome, Zootaxa 4126 (2), pp. 251-261: 253

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Zygoclistron ruschii Silva

n. sp.

Zygoclistron ruschii Silva  n. sp.

( Figs. 2View FIGURE 2, 3View FIGURE 3, 4View FIGURE 4).

http://lsid.speciesfile.org/urn:lsid: Orthoptera  .speciesfile.org:TaxonName: 478477

Etymology. The specific epithet refers to a researcher, naturalist and ecologist Augusto Ruschi.

Type locality. Holotype labeled: “ Brasil, Espírito Santo, Santa Teresa, Reserva Biológica Augusto Ruschi (19 ° 54 ' 20 " S 40 ° 33 ' 44 " W), 16 /vii/ 2014. Silva, D.S.M. & Pereira, M.R. [licença SISBIO n° 37717]”. Holotype with genitalia removed. Allotype: the same data of the holotype.

Diagnosis. This species can be distinguished from the other species of Zygoclistron  by the following combination of characters: (i) Epiphallus with long and flat bridge, lophi sclerotized and ancorae straight ( Fig. 4View FIGURE 4 D), (ii) oval sclerites rounded ( Fig. 4View FIGURE 4 D), (iii) apodemes of cingulum reaching the endophallic apodemes ( Fig. 4View FIGURE 4 G), and (iv) subgenital plate with apex acute and moderately curved upwards ( Fig. 4View FIGURE 4 C).

Description. Male Holotype ( Fig. 2View FIGURE 2 A, 2 B and 3 A). Head: Antennae filiform with 20 flagellum reddish, longer than the thorax, scape and pedicel brown; fastigium evident in dorsal and lateral view, not exceeding the vertex in side view; dorsal whitish perpendicular band from fastigium to occipital region; globular eyes; whitish band across the genae to the facial carina; front, clypeus, and labrum brown; mandibular articulation blackish; head brown. Thorax: Median carina well marked; pronotum and mesonotum rugose, with two white bands on third dorsal and a continuum white band across the genae to episternum; pronotum without lateral carina, reddish with three transverse sulci; metazona lower than the prozona, without lateral carina and transverse sulcus; prosternal spine laterally compressed and rounded apex. Tegmina and wings with same size, green-olive to brown, with rounded apex, covering the whole abdomen. Fore and middle legs brown and hirsute; hind femur whitish on external side, robust and not surpassing the abdomen tip; hind tibia brown with 10 internal and eight external dorsal spines. Abdomen: Tergites and sternites hirsute, covered by a mixture of dark brown, light brown, opaque green and dark spots; tympanum present. Epiproct triangular ( Fig. 4View FIGURE 4 B); cerci long and slender, curved toward subgenital plate, with flattened apex ( Fig. 4View FIGURE 4 B, 4 C), subgenital plate with apex curved and moderately directed upwards ( Fig. 4View FIGURE 4 C). Phallic complex: Epiphallus with a long and flat bridge; ancorae straight; anterior projections developed; lophi sclerotized well-marked, with oval sclerites present ( Fig. 4View FIGURE 4 D). Ectophallus with cingulum with long U-shaped and slender apodemes ( Fig. 4View FIGURE 4 G, 4 F); zygoma arched; side sclerites moderately large ( Fig. 4View FIGURE 4 F). Endophallus with long aedeagus, arched up and well developed in dorsal valve of aedeagus ( Fig. 4View FIGURE 4 E, F and G).

Measurements (mm): (A) 34,35; (B) 35,38; (C) 1,09; (D) 3,47; (E) 2,74; (F) 6,21; (G) 9,64; (H) 15,31; (I) 25,71; (J) 2,46; (K) 1,89; (L) 13,81; (M) 1,32; (N) 4,98; (O) 4,28; (P) 4,25; (Q) 2,63.

Female allotypes ( Fig. 2View FIGURE 2 A, 2 C and 3 B): Similar in color and shape to holotype, larger in size (57, 15 mm); ovipositor valves short and slender, superior margin of the dorsal and ventral valve without teeth ( Fig. 4View FIGURE 4 H).

Measurements (mm): (A) 52,26; (B) 57,15; (C) 1,61; (D) 5,96; (E) 11,07; (F) 11,07; (G) 16,87; (H) 24,41; (I) 35,39; (J) 3,38; (K) 2,57; (L) 21,79; (M) 2,87; (N) 7,63; (O) 7,4; (P) 7,97; (Q) 4 ,0.

Occurrence. Reserva Biológica Augusto Ruschi, Santa Teresa, Espírito Santo, Brazil ( Fig. 1View FIGURE 1).

Material examined. 1 holotype (male) and 1 allotype (female) ( Figs. 2View FIGURE 2 and 3View FIGURE 3).

Observation. Male and female with antenna broken.