Reyesacris, Fontana, Paolo, Buzzetti, Filippo Maria & Mariño-Pérez, Ricardo, 2011

Fontana, Paolo, Buzzetti, Filippo Maria & Mariño-Pérez, Ricardo, 2011, New Acrididae from Oaxaca State in Mexico (Orthoptera: Caelifera: Acrididae Ommatolampinae, Melanoplinae), Zootaxa 2862, pp. 39-55 : 40

Reyesacris n. gen.

Descamps & Amédégnato. 1989. Rev. fr. Ent. (N.S.) 11(1):17, 19. (nomen nudum). Otte, D. 1995. Orthoptera Species File 5:87. (no species indicated).

Diagnosis. The genus is peculiar for the following combination of characters: tegmina white in the upper third, black in the lower two thirds (fig. 1); male cerci pointed at the tip, inflated in the inner surface and with a internal stout spine in the basal half ( Fig. 41 ); male supragenital plate triangular with dilated margins and dark knobs on surface (fig. 34) Male subgenital plate small and rounded ( Fig. 27 ).

Description. Body colour dark brown-black in the anterior half, brown in the posterior half; two dorsal light brown stripes from behind the eyes to the hind margin of the pronotum, continuing with the light brown upper third of the tegmina; pronotum black except for the light brown lower half of the lateral lobes and the two stripes dividing the pronotal disc from the lateral lobes; tegmina light brown in the upper third, black in the lower two thirds; metanotum and abdomen segments I–II dark brown, brown in the other segments; limbs brown ( Figs. 1–2 , 13 ). Medium sized. Eyes globose and prominent, face of head slanted with fastigium extending forward the eyes; pronotum rugulose with longitudinal median carina on dorsum, cut by two sulci, fore margin straight, hind margin emarginated; tegmina elongated with upper margin more or less straight and lower margin widely convex ( Fig. 13 ); abdominal tergites carinate in the middle. Fore and mid tibiae with two rows of small dark spine on inner and outer margin of lower surface of distal half, hind tibiae with two rows of spines on upper surface, 7 spines in the outer row, 8–9 spines in the inner row.

Type species: R. amedegnatoae n. sp.

Figures

FIGURES 41 – 47. Male right cercus. 41: dorsal view, Reyesacris amedegnatoae n. sp.; 42: lateral view, Oaxaca colorata n. sp.; 43: lateral view, Oaxaca carinata n. sp.; 44: lateral view, Melanoplus mixes n. sp.; 45: lateral view, Melanoplus oaxacae n. sp.; 46: lateral view, Melanoplus ludivinae n. sp.; 47: lateral view, Cephalotettix chinantecus n. sp.

FIGURES 26 – 33. Head and pronotum of mounted adult male in a dorsal view. 26: Cephalotettix chinantecus n. sp. Abdomen apex of mounted adult male in a left lateral view. 27: Reyesacris amedegnatoae n. sp.; 28: Oaxaca colorata n. sp.; 29: Oaxaca carinata n. sp.; 30: Melanoplus mixes n. sp.; 31: Melanoplus oaxacae n. sp.; 32 Melanoplus ludivinae n. sp.; 33: Cephalotettix chinantecus n. sp.

FIGURES 1 – 2. Reyesacris amedegnatoae n. sp., live specimens in nature. 1: male; 2: female.

FIGURES 13 – 15. Mounted adult males in a left lateral view. 13: Reyesacris amedegnatoae n. sp.; 14: Oaxaca colorata n. sp.; 15: Oaxaca carinata n. sp.