Reyesacris zihua, 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 : 523-524

2. Reyesacris zihua sp. nov. Mariño-Pérez, Sanabria-Urbán, Pocco, Foquet, & Song

Figs. 2A & B , 4 , 8

Diagnosis. Hind margin of 10 th abdominal tergite with three small dark knobs. Male supra-anal plate with many small dark knobs. Only tip of lophi sclerotized. Dorsal margin of the sheath of aedeagus slightly pointed in lateral view. Dorsal valves of aedeagus widened at the base, with lateral margins tapering towards the apex, semicircular apex.

Male description ( Fig. 2A & B ). External genitalia ( Fig. 4A ). Cerci triangular with internal spine in the basal half. Margin of 10 th abdominal tergite thickened and forming three small black projections. Supra-anal plate triangular with dilated margins and many small dark knobs. Internal genitalia ( Fig. 4B–E ). Epiphallus ( Fig. 4B & C ). Well sclerotized, bridge almost straight, anterior projections globose and rounded. Ancorae triangular. Lophi prominent with an anterior portion well sclerotized. Semi-circular shape of this anterior portion sclerotized area from dorsal view. Lateral plates poorly developed. Posterior projections enlarged. Oval sclerites semi-triangular. Ecto + Endophallus complex ( Fig. 4D & E ). Ectophallus. Apodemes of cingulum elongated. Zygoma well-developed. Rami well-developed. Sheath of aedeagus folded at tip with dorsal margin slightly pointed in lateral view. Endophallus. Apodemes of endophallus laterally compressed, arch of aedeagus elevated (almost “L shaped, in lateral view). Dorsal valvae in dorsal view well sclerotized, widened at the base, with lateral margins tapering towards the apex, and semicircular in the apex 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 almost covered by sheath of aedeagus. Female description. Unknown.

Etymology. The specific epithet is referring to the name given to the zone by local people, which also mean woman in Náhuatl.

Male measurements (2). Pronotum length 3.82–4.05; tegmen length 3.85–4.02; hind femur length 10.55.

Male holotype. Mexico, Guerrero, 16–20 km NE RT 200, Ixtapa-Altamirano Rd. mountain forest. # 60. 382 m. (17.804 N; 101.445°W), 9-IX-1981. Legit Otte. ANSP .

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

Geographic distribution. This species is only known from its type locality ( Fig. 11) which is found in the Pacific Coast biogeographic province near the Northwestern limit of the Sierra Madre del Sur mountain range. Reyesacris zihua is found in the most northern boundary of the genus and in the lowest elevation ranges, probably in association with tropical deciduous forest.

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 4. Reyesacris zihua 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. Arrow in C indicates tip of lophi sclerotized, arrows in D and E indicate key characteristics of sheath of aedeagus and aedeagal valvae. Scale bar 250 μm.

FIGURE 8. Characteristics to place Reyesacris in the tribe Ommatolampidini (1–3) and subtribe Vilernina (4–10). Reyesacris zihua sp. nov. A. Epiphallus, dorsal view, posterior downwards. B. Male terminalia, dorsal view. C. Phallic complex, dorsal view. 1. Margin of the 10th abdominal tergite thickened and melanized (forming black projections). 2. Supra-anal plate triangular bearing black callosities. 3. Cerci with a black basal internal process. 4. Epiphallus with a narrow bridge and small lateral plates. 5. Posterior processes well developed. 6. Ancorae defined, pointed and sclerotized. 7. Lophi melanized. 8. Ectophallic sheath of aedeagus complex and folded at the tip. 9. Endophallic apodemes laterally compressed. 10. Middle part of endophallus long and narrow.