New Acrididae from Oaxaca State in Mexico (Orthoptera: Caelifera: Acrididae Ommatolampinae, Melanoplinae) Author Fontana, Paolo Author Buzzetti, Filippo Maria Author Mariño-Pérez, Ricardo text Zootaxa 2011 2862 39 55 journal article 10.5281/zenodo.206593 007b4176-febb-42a0-9d0d-e375b9356caa 1175-5326 206593 Melanoplus mixes n. sp. Diagnosis. Differs from the congeneric species for the male terminalia and internal genitalia. Male description. Body colour dark brown ( Figs. 6 , 16 ). Dorsal surface of head, pronotal disc and abdominal dorsal surface brown. Black stripes behind the eyes ( Fig. 23 ). Lateral lobes of pronotum black in the upper half, brown in the lower half. White oblique stripe on metathoracic episternum. Tegmina dark brown. Sides of abdomen black. Limbs brown, dorsal and ventral surfaces of hind femora reddish brown, hind genicular lobes and hind tibiae dark brown. Pronotum with fore margin slightly emarginated, hind margin emarginated. Metazona rugulose. Median longitudinal carina from fore margin of pronotal disc to the end of abdomen. Tegmina ovate with hind margin emarginated, extending beyond the hind margin of abdominal segment I and covering the tympana ( Fig. 16 ). Furculae bluntly triangular ( Fig. 37 ). Supragenital plate triangular, elongated, with deep median longitudinal groove on basal half, apex rounded ( Fig. 37 ). Cerci spatulated, constricted after the middle and with pointed downward apex ( Figs. 30 , 37 , 44 ). Subgenital plate with tubercle on distal margin ( Fig. 30 ). Phallic complex: epiphallus well sclerotized, bridge almost straight, anterior process with strong dark downwards directed tooth, highly prominent lophi ( Fig. 51 ); dorsal valvae scarcely sclerotized, short, subtriangular, rugose, with rounded apex; ventral valvae as long as dorsal, rugose, ventrally dilated in lateral view ( Figs. 61–62 ). Female description ( Fig. 7 ). Similar to male. Cerci small, conical. Male measurements (3). Body length 17.8–18.4 (18.25; 0.35); pronotum length 3.1; prozona length 2.0; metazona length 1.0–1.1 (1.08; 0.02) and hind femur length 9.5–9.8 (9.68; 0.15). Female measurements (2). Body length 20.9–21.8 (21.38; 0.65); pronotum length 3.6–3.9 (3.75; 0.21); prozona length 2.2–2.4 (2.30, 0.14); metazona length 1.4–1.5 (1.45; 0.07) and hind femur length 11.53–10.92 (11.22; 0.43). FIGURES 6–7. Melanoplus mixes n. sp. , live specimens in nature. 6: male; 7: female. Type material. Male holotype : Mexico , Oaxaca, Carr. # 179, Mitla a Santiago Zacatepec, km 80, 2493 m ( 17°07’23’’ N ; 96°02’20’’W ), 21.IX.2008 , legit R. Mariño-Pérez, B. Riveros-Lara, O. Padrón-Estrada and J. Villanueva; same data, female Allotype and two paratypes ( 1 male and 1 females ): Mexico , Oaxaca, Monte Albán , 1843 m ( 17°03’04’’ N ; 96°45’50’’W ), 20.IX.2008 , Legit R. Mariño-Pérez, 1 male paratype . Type depository. male Holotype and female Allotype, CNIN ; 1 male and 1 female paratypes , CPF ; 1 male paratype , CFMB . Etymology. the specific name mixes refers to the ethnical group Mixe, inhabiting central Oaxaca state.