Plato peruana, Prete & Brescovit, 2024

Plato peruana new species

Figures 21 View FIGURE 21 , 23 View FIGURE 23

Types. Female holotype from Zona Reservada Pakitza ( 71°17'W, 11°56'S), Manu, Madre de Dios, Peru, 07– 13.v.1991, D. Silva col., deposited in USNM 482 GoogleMaps .

Etymology. The specific name is a feminine noun in apposition and refers to the country where this species was found, Peru.

Material examined. PERU. Loreto: Cocha Shinguito, Rio Samiria ( 74°45'W, 05°08'S), 2♀, 12.v.1990 ( MUSM 500553 ) GoogleMaps ; 1♀, 27.v.1990 ( MUSM 511437 ) GoogleMaps ; Pacaya-Samiria ( 74°50’W, 05°06’S), 1♀, viii.1989 ( MUSM 500551 ) GoogleMaps , all collected by D. Silva.

Diagnosis. Females are recognized by the epigyna with a thick transversal groove, with a large projection in the region of the epigynal support (fig. 21D). Dorsal plate with a large median slit in the posterior portion, separating it in two sides (fig. 21C, G).

Description. Female ( Holotype, USNM 482,). Carapace, sternum, labium, endites and chelicerae brown. Legs light brown. Abdomen grayish with two lighter bands dorsally, length 1.8. Total length: 2.5. Carapace length: 1.1. Clypeus height: 0.25. Sternum: 0.62 in length and 0.52 in width. Eyes: AME: 0.1; AME-AME: 0.04; ALE-PLE: contiguous (0.09 each); PME-PME separated by 0.09 (PME 0.1). Legs: I femur 1.3/ patella 0.5/ tibia 1.05/ metatarsus 075/ tarsus 0.65/ total 4.25; II 1.02/ 0.45/ 0.82/ 0.6/ 0.52/ 3.41; III 0.75/ 0.35/ 0.57/ 0.5/ 0.45/ 2.62; IV 1.05/ 0.3/ 0.67/ 0.5/ 0.38/ 2.9. Epigynum: ventral epigynal plate hyaline (fig. 21B). Dorsal plate covering the spermathecae (fig. 21C, G). Copulatory ducts forming an elbow bend (fig. 21C). Abdomen oval.

Variation. 5 females: total length: 2.2–2.5; carapace: 1–1.4; femur I: 1.3–1.5.

Distribution. Known only to the departments of Madre de Dios and Loreto, Peru (fig. 23).