Sperberacris, a new Neotropical genus of Gomphocerinae (Orthoptera: Acridoidea Acrididae) from State of Alagoas, Brazil with chromosome complement Author Costa, Maria Kátia Matiotti Da Laboratório de Entomologia. Departamento de Biodiversidade e Ecologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul. Avenida Ipiranga, 6681, Prédio 40, sala 127, 90619 - 900, Porto Alegre, RS, Brazil. Author Fernandes, Anelise Laboratório de Drosophila, Departamento de Genética, Universidade Federal do Rio Grande do Sul. Avenida Bento Gonçalves, 9500, Bairro Agronomia. CEP: 91509 - 900, Porto Alegre, RS, Brazil. Author Acosta, Riuler Corrêa Universidade Federal do Rio Grande do Sul, Instituto de Biologia, Departamento de Zoologia, Laboratório de Ecologia de Insetos. Avenida Bento Gonçalves, 9500, Bairro Agronomia. CEP: 91509 - 900, Porto Alegre, RS, Brazil. Author Zefa, Edison Universidade Federal de Pelotas, Departamento de Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s / n, Capão do Leão, RS, Brazil. text Zootaxa 2023 2023-01-11 5228 1 73 80 journal article 222252 10.11646/zootaxa.5228.1.4 c33ad562-7a87-452a-959a-f28adb9bb38c 1175-5326 7524108 60EE7202-1A67-4033-B3CE-A1F9F9F28F9E Sperberacris muriciensis Matiotti da Costa, n. sp. Etymology. The specific epithet refers to the type locality: (Murici = muriciensis ), a conservation area located in the municipality of Murici, State of Alagoas , Brazil . Male . Body color dark brown.The head, thorax, and abdomen laterally marked by a broad dark brown band. Head with a median dorsal dark brown band and two lateral pale bands, one on each side. Face dark brown. Fastigium of the vertex with dark brown spots. Scape, pedicel, and antennal flagellum dark brown. Pronotum with broader median dark brown band and two narrower lateral pales bands. Each tegmen bisected by a broad brown dark and a pale band. Lateral lobes are slightly sinuous, with the upper two thirds dark brown and the lower third ivory. Hind femur smooth without darker bands. Legs I and II green; femora III orange; tibiae III orange and the final third black; hind knees dorsally orange; lunules genicular orange; spines of legs III black. Abdomen dark brown, yellowish dorsally and ventrally. The lateral regions of the 3–5 abdomen tergites are black. Female. Similar in color to males, larger in size (Body length 25mm ). Head with fastigium more prominent and wider than in males; eyes more prominent. Wings narrower. The ovipositor valves are strong and short in lateral view; without serrulated margins; the dorsal valve of the ovipositor is robust and the apical tooth of the external ventral valve of ovipositor is little prominent ( Fig. 11 ). Measurements in mm . 5 Males / 2 Females , respectively: BL., 16.9 (15.7–17)/ 24.5 (23.1–25.4); PL., 3.1 (2.8– 3.3)/ 4.3 (4.0–4.6); FL3, 10.4 (9.1–10.7)/ 13.2 (12.5–13.7); TL, 2.5 (3.3–4.0)/ 5.1 (4.1–6.2). FIGURES 1–6. (1) Sperberacris muriciensis n. sp . , holotype, male, lateral view; (2) Head and pronotum of male, dorsal view; (3) Head and pronotum of male, lateral view; (4) Epiproct of male, dorsal view; (5) End of male abdomen, lateral view; (6) Tegmen of male, lateral view. FIGURES 7–11. (7) Cerci of Sperberacris muriciensis n. sp . , holotype, lateral view; (8) Phallic complex, lateral view; (9) same, dorsal, view; (10) Epiphallus, dorsal view; (11) Ovipositor valves, female, lateral, view. Type material. Holotype ♁: Brazil , State of Alagoas , municipality of Murici , Station Serrado Ouro ( 9°14'7.50" S – 35°50'10.40"W ), 19–23.i. 2013 , Zefa, E. ; Pereira, M. ; Reḑ, D. leg ./ ( MCT ) . Holotype condition: genitalia were extracted, and maintained in holotype's vial. Paratypes : same data of Holotype (4 ♁, 2♀ , MCTP ) . Genus Distribution . Brazil , Alagoas (Murici) ( Fig. 17 ). Habitat. Individuals were found in shrubs and grasses on the banks of a dirt road crossing a stretch of Atlantic Forest. Chromosomes ( Figs. 12–16 ). A diploid number of 2n=23, X0 for males, and 2n=24, XX for females; all chromosomes telo/acrotelocentric, grouped in two pairs large (L 1–2 ), two medium-large ( ML 3–4 ), four medium (M 5– 8 ), and three small (S 9–11 ) ( Fig. 12 ); the X chromosome belongs to the ML group, showing positive heteropyknosis until initial diplotene ( Fig. 14 ), and negative heteropyknosis along the terminal diplotene to metaphase I ( Figs. 15–16 ); in the initial diplotene, bivalents show the pericentromeric regions in positive heteropyknosis ( Fig. 13 ); zero or one dot-like B chromosome may occur.