Reyesacris atoyacensis, Mariño-Pérez & Sanabria-Urbán & Pocco & Foquet & Song, 2021

Mariño-Pérez, Ricardo, Sanabria-Urbán, Salomón, Pocco, Martina E., Foquet, Bert & Song, Hojun, 2021, Studies in Mexican Grasshoppers: Four new species of Reyesacris Fontana Buzzetti & Mariño-Pérez, 2011 (Orthoptera: Acrididae: Ommatolampidinae), Zootaxa 5039 (4), pp. 518-536 : 525-527

3. Reyesacris atoyacensis sp. nov. Mariño-Pérez, Sanabria-Urbán, Pocco, Foquet, & Song

Figs. 1-E–H , 5 , 9 , 12A

Diagnosis. Hind margin of 10 th abdominal tergite with three large dark knobs. Male supra-anal plate with 2 + 3-4 large dark knobs. Sclerotized area of lophi of epiphallus ovoid-shaped in dorsal view. Dorsal margin of the sheath of aedeagus slightly “quadrated in lateral view. Long aedeagal valvae, only partially covered by sheath of aedeagus; lateral margins of dorsal valves “slightly tapering towards the apex.

Male description ( Fig. 1E & G ). External genitalia ( Fig. 5A ). Cerci triangular with internal spine in the basal half. Margin of 10 th abdominal tergite thickened and forming three black projections. Supra-anal plate triangular with dilated margins. Five to six large and clear knobs in a 2 + 3-4 pattern. Internal genitalia ( Fig. 5B–E ). Epiphallus ( Fig. 5B & C ). Well sclerotized, bridge almost straight, anterior projections globose and rounded. Ancorae triangular. Lophi prominent with an anterior portion and surrounding areas well sclerotized. Ovoid shape of this sclerotized area from dorsal view. Lateral plates poorly developed. Posterior projections enlarged. Oval sclerites semi-triangular. Ecto + Endophallus complex ( Fig. 5D & E ). Ectophallus. Apodemes of cingulum elongated. Zygoma well-developed. Rami well-developed. Sheath of aedeagus folded at tip with dorsal margin slightly “quadrated in lateral view. Endophallus. Apodemes of endophallus laterally compressed, arch of aedeagus elevated (almost “L shaped, in lateral view). Dorsal valvae well sclerotized, widened at the base, expanded laterally with lateral margins “slightly tapering towards the apex, and semicircular in dorsal view with anterior outer margin concave and involving laterally ventral ones. Ventral valvae a little longer than dorsal ones, semicircular and with expanded rounded apex. Both valvae large and only partially covered by sheath of aedeagus. Female description ( Fig. 1F & H ). Cerci small conical and supra-anal plate semicircular.

Etymology. The specific epithet is referring to the name of the municipality “Atoyac where the localities are found.

Male measurements (13). Pronotum length 3.22–3.64 (3.43; 0.14); tegmen length 3.13–3.57 (3.42; 0.15); hind femur length 9.64–10.63 (9.94; 0.25).

Female measurements (8). Pronotum length 4.17–4.90 (4.61; 0.26); tegmen length 3.92–4.85 (4.40; 0.31); hind femur length 11.86–12.87 (12.42; 0.38).

Male holotype. Mexico, Guerrero, Barranca El Faisanal, L 06- 2018. 1172 m. (17.4055 N; 100.1885°W), 14-X- 2018, Legit Sanabria-Urbán, Palacios, Jiménez-Arcos. CAFESI .

Additional type material. Ten males and five females (adults), and four males and seven females (nymphs) same data as above. UMMZ, CAFESI . Mexico, Guerrero, Pasando Localidad del Paraso , L02- 2018. 867 m. (17.3226°N; 100.2484°W), 13-X-2018, Legit Sanabria-Urbán, Palacios, Jiménez-Arcos, 4 males and 4 females (adults), and 5 males and 10 females (nymphs). UMMZ, CAFESI . Mexico, Guerrero, Nueva Delhi, Barranca frente iglesia, L04- 2018. 1327 m. (17.4143N; 100.1973°W), 13-X-2018, Legit Sanabria-Urbán, Palacios, Jiménez-Arcos, 4 males and 2 females (adults), and 1 female (nymph). CAFESI . Mexico, Guerrero, El Molote, L 05- 2018. 1653 m. (17.4230°N; 100.1787°W), 14-X-2018, Legit Sanabria-Urbán, Palacios, Jiménez-Arcos, 2 females (nymphs). CAFESI . Mexico, Guerrero, Rincón de los Planes, El Paraso; Mpo. Atoyac de Alvarez , L 18-2019. 912 m. (17.3517°N; 100.1955°W), 8-IX-2019, Legit Palacios-Aguilar, 5 females (adults). CAFESI .

Geographic distribution ( Fig. 11). This species is apparently restricted to physiographic province of the Sierra de Atoyac which is part of the Sierra Madre del Sur mountain range in the state of Guerrero. This species has been found in elevations ranging from 867 to 1653 masl. in association mainly with cloud and rainforests vegetation of this region.

Figures

FIGURE 1. Reyesacris spp. A–D. R. amedegnatoae. A. Male lateral view. B. Female lateral view. C. Male dorsal view. D. Female dorsal view. E–H. R. atoyacensis sp. nov. E. Male lateral view. F. Female lateral view. G. Male dorsal view. H. Female dorsal view. Scale bar 5 mm.

FIGURE 5. Reyesacris atoyacensis sp. nov. A. Male terminalia, dorsal view. B. Epiphallus, dorsal view, posterior downwards. C. Epiphallus, anterior view, dorsal downwards. D. Ecto + Endophallic complex, dorsal view. E. Ecto + Endophallic complex, left lateral view. Arrows in D and E indicate key characteristics of sheath of aedeagus and aedeagal valvae. Scale bar 250 μm.

FIGURE 9. Reyesacris atoyacensis sp. nov..A. Female. B. Male. C. Male. D. male (nymph). Photos A and C provided by Leopoldo Daniel Vázquez Reyes.

FIGURE 12. Some habitats of Reyesacris spp. A. El Paraíso, Guerrero (R. atoyacensis sp. nov.). B. Iliatenco, Guerrero (R. mephaa sp. nov.). C. San Isidro Paz y Progreso, Oaxaca (R. tika sp. nov.).