Xiruana tapirape new species

Figs 12 G–H; 16B

Type material. Female holotype from Barra do Tapirapé (10°37’35.21”S; 51°02’47.64”W), Mato Grosso, Brazil, 11–30.XI.1960, B. Malkin leg., deposited in AMNH.

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Females of Xiruana tapirape n. sp. are readily recognized by the cordiform epigynal plate (Fig. 12 G).

Description. Female (Holotype). Coloration as in X. hirsuta . Total length 5.57, carapace length 2.58, width 1.5. Clypeus height 0.08. Eye diameters and interdistances: AME 0.14, ALE 0.14, PME 0.12, PLE 0.14; AME– AME 0.06, AME–ALE 0.04, PME–PME 0.2, PME–PLE 0.10, ALE–PLE 0.04. Chelicerae 1.3 long, with four promarginal teeth and five retromarginal denticles. Leg measurements: Leg I—femur 2.2/ patella 1.0/ tibia 2.6/ metatarsus 2.0/ tarsus 1.1/ total 8.9; II—2.1/ 1.0/ 2.0/ 1.7/ 0.9/ 7.7; III—1.6/ 0.6/ 1.0/ 1.3/ 0.5/ 5.0; IV—2.5/ 1.0/ 2.1/ 2.7/ 0.8/ 9.1. Leg spination: I—tibia v2-2 -0, p0, r0, metatarsus v2 -0-0, p0, r0; II—tibia v1-2 -0, p0-1-0, r0, metatarsus v2 -0-0, p0, r0; IV—tibia p1-1-1, r1-1-1. Abdomen: length 2.2, epigastric furrow 0.5 from tracheal spiracle, spiracle 2.0 from base of spinnerets. Epigynum: seminal receptacles contiguous to the spermathecae; copulatory ducts short and curved; fertilization ducts longer than the width of the oval spermathecae (Fig. 12 H).

Male. Unknown.

Other material examined. Only the holotype.

Distribution. Known only from the type locality (Fig. 16 B).