Reyesacris mephaa, 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 : 527-528

4. Reyesacris mephaa sp. nov. Mariño-Pérez, Sanabria-Urbán, Pocco, Foquet, & Song

Figs. 2C & D , 6 , 12B

Diagnosis. Hind margin of 10 th abdominal tergite with three small dark knobs. Male supra-anal plate with some small dark knobs. Tip of lophi and surrounded areas well sclerotized; sclerotized area ovoid in dorsal view. Dorsal margin of the sheath of aedeagus slightly “quadrated in lateral view, fused with dorsolateral projections of the dorsal aedeagal valves forming an apical groove. Apex of dorsal valves semicircular in dorsal view; anterior outer margin stout and concave. Dorsal and ventral aedeagal valves large and partially covered by sheath of aedeagus.

Male description ( Fig. 2C & D ). External genitalia ( Fig. 6A ). 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 and some small dark knobs. Internal genitalia ( Fig. 6B–E ). Epiphallus ( Fig. 6B & 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. 6D & 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. This dorsal margin fuse with the lateral-dorsal projections of the dorsal valvae of aedeagus forming an apical groove evident in lateral view of ectophallus. Endophallus. Apodemes of endophallus laterally compressed, arch of aedeagus elevated (“L shaped) (in lateral view). Dorsal valvae well sclerotized with dorsolateral quadrated projections (“anterior margins nearly perpendicular to body axis). Apex of the dorsal valvae semicircular in dorsal view with anterior outer margin stout and concave, 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. Unknown.

Etymology. This species is named in honor of the Me’phaa, also known as Tlapanecos, which is one of the most ancient indigenous people that remains in highlands southeastern Guerrero, where this new species was found.

Male measurements (1). Pronotum length 3.85; tegmen length 3.33; hind femur length 9.34.

Male holotype. Mexico, Guerrero, Iliatenco Centro Ecoturístico. L 18. 1308 m (17.0714°N; 98.6726°W) . 23- X-2017. Legit. Mariño-Pérez, Sanabria-Urbán, Pocco, Foquet. UMMZ .

Additional type material. One male paratype same data as above. CAFESI .

Geographic distribution. Only known from its type locality ( Fig. 11) in the external versant of the Sierra Madre del Sur near the limits between the Guerrero and Oaxaca states. This species is found in mid elevations in association with cloud forests vegetation .

Figures

FIGURE 2. Reyesacris spp. A–B. R. zihua sp. nov. A. Male lateral view. B. Male dorsal view. C–D. R. mephaa sp. nov. C. Male lateral view. D. Male dorsal view. E–H. R. tika sp. nov. E. Male lateral view. F. Male dorsal view. Scale bar 5 mm.

FIGURE 6. Reyesacris mephaa 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 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.).