Acuscercus eudaldoleondiazi Cadena-Castañeda & Braun, 2020

Cadena-Castañeda, Oscar J., Prieto-Cristancho, Daniel S., Romero-Betancourt, Laura M., Braun, Holger & García, Alexander García, 2020, Studies in Neotropical Pseudophyllinae: A new genus of Cocconotini from the ColombianAndes and new subfamily assignment of the Dominican genus Anacaona (Tettigoniidae: Pseudophyllinae: Cocconotini), Zootaxa 4885 (1), pp. 133-138 : 135-138

Acuscercus eudaldoleondiazi Cadena-Castañeda & Braun n. sp.

( Fig. 1–2 )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:512020

Diagnosis. Black vertical stripes on the face; male cerci with ventral branch, elongated, slightly curving inwards and with a sharp apex. All genicular lobes unarmed; tibial spines with yellowish base and black apex; spines of the femora with black base and apex, and yellow mesal region.

Etymology. Dedicated to the memory of Eudaldo León Díaz Salgado, mayor of the municipality of El Roble ( Colombia, Sucre). “Tito” Díaz was assassinated in 2003 after he made complaints about irregularities that had been committed at the departmental level by public servants.

Type material. Holotype. Ƌ. Colombia, Cundinamarca, Tibacuy , 1850 m. 4.353460, -74.459752. R. Quintana ( CAUD) . Paratype: Ƌ. Same data as holotype .

Description. Male. In addition to the characters mentioned in the generic description: Head. Eyes bright green; ocelli round and yellowish. Face with two stripes delineating the frontal-genal suture, originating from the intersection of the antennal sockets and eye sockets, reaching the mandibles that are also black; lateral edges of the clypeus and distal half of the labrum black ( Fig. 1B ). Pronotum. Pronotal disc with a sulcus delimiting prozone and mesozone, and an additional sulcus between mesozone and metazone, the latter dividing the pronotum in dorsal and lateral view, and crossed by a small black median slit ( Fig. 1 C–D). Legs. Fore-femur ventrally unarmed, foretibia armed with six spines on each ventral margin. Mid-femur with five spines on the ventro-external margin and mid-tibia with six ventral spines on each ventral margin. Hind femur with eight spines on the outer ventral margin, hind tibia with ten dorsal spines on each margin and twelve ventral spinules on the ventral margin. All genicular lobes unarmed; spines of the femora with black base and apex, but yellow mesal region; tibial spines with yellowish base and black apex. Wings. Longitudinal and transverse veins of the tegmina conspicuous, whitish and outlined in black, forming well-defined cells ( Fig. 1A ). Stridulatory vein straight, with uniform thickness from base to apex; mirror of both tegmina small, ovoid and membranous ( Fig. 1D ). Hindwings faded brown. Abdomen. Tenth tergite rectangular, with slightly concave distal margin. Epiproct triangular, as wide as long and with rounded apex ( Fig. 2 A–B). Cerci tumescent, cylindrical and divided into two branches, a short dorsal branch and a sclerotized ventral branch, elongate, slightly curving inwards, and with a pointed apex ( Fig. 2 A–D). Subgenital plate rectangular, narrow, noticeably longer than wide and with a straight posterior edge; styli cylindrical ( Fig. 2E ).

Female. Unknown.

Measurements (mm). Holotype / Paratype: LB: 38/40, Pr: 8/8.5, Teg: 47/48, HF: 24/25, HT: 25/26, SP: 8/8.5.

Variation. No significant variation was observed between both holotype and paratype males.

Figures

FIGURE 1. Acuscercus eudaldoleondiazi n. gen et n. sp. male. A. Habitus in lateral view. B. Frons. C–D. Head and thorax in lateral and dorsal view respectively.

FIGURE 2. Acuscercus eudaldoleondiazi n. gen et n. sp. male.A–B. Terminalia in dorsal and latero-dorsal view respectively. C–D. Cerci in dorsal and latero-dorsal view. E. Subgenital plate.