Xiruana cocha, Oliveira, Luiz Fernando M. & Brescovit, Antonio D., 2015

Oliveira, Luiz Fernando M. & Brescovit, Antonio D., 2015, A taxonomic revision of the Neotropical spider genus Xiruana Brescovit 1997 (Araneae: Anyphaenidae, Anyphaeninae), Zootaxa 3980 (2), pp. 201-229: 225-226

publication ID

http://dx.doi.org/10.11646/zootaxa.3980.2.3

publication LSID

lsid:zoobank.org:pub:13D14535-2FCD-4E8D-A8EC-01CC9D6F38CC

persistent identifier

http://treatment.plazi.org/id/03839756-FFE3-FFAA-FF23-F9C2FCDAFDD2

treatment provided by

Plazi

scientific name

Xiruana cocha
status

new species

Xiruana cocha  new species

Figs 14View FIGURE 14 C –D; 16 B

Type material. Female holotype from Cocha  Shinguito (05°08’00”S; 74 ° 45 ’00”W), Loreto, Peru, 16.V. 1990, T. Erwin et al. leg., deposited in MUSM.

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

Diagnosis. The females of Xiruana cocha  n. sp. resemble those of X. gracilipes  by the shape of the epigynal plate, but differ by the broader anterior border and, internally, by the copulatory ducts strongly curved distally ( Figs 14View FIGURE 14 C, D).

Description. Female (Holotype). Coloration as in X. hirsuta  . Total length 6.7, carapace length 2.4, width 2.0. Clypeus height 0.08. Eye diameters and interdistances: AME 0.1, ALE 0.12, PME 0.12, PLE 0.1; AME –AME 0.06, AME –ALE 0.04, PME –PME 0.14, PME –PLE 0.06, ALE –PLE 0.04. Chelicerae 1.1 long, with four promarginal teeth and four retromarginal denticles. Leg measurements: Leg I—femur 2.1 / patella 0.9 / tibia 2.2 / metatarsus 1.7 / tarsus 0.9 / total 7.8; II—2.0/ 0.9 / 1.9 / 1.5 / 0.6 / 6.9; III— 1.6 / 0.7 / 1.7 / 1.1 / 0.5 / 5.6; IV— 2.4 / 0.4 / 2.1 / 2.5 / 0.6 / 8.0. Leg spination: I—tibia v 2 - 2 -0, p0, r0, metatarsus v 2 -0-0, p0, r0; II—tibia v 1-2 -0, p 0-1 -0, r0, metatarsus v 2 -0-0, p0, r0; III—v 1-2 - 2, p 0-1 - 1, r 0-1 - 1; IV—tibia v 1-2 - 2, p 1 - 1 - 1, r 1 - 1 - 1. Abdomen: length 4.3, epigastric furrow 1.0 from tracheal spiracle, spiracle 2.5 from base of spinnerets. Epigynum: fertilization ducts longer than the width of the globose spermathecae; seminal receptacles with inconspicuous ducts, inserted medially on copulatory ducts ( Figs 14View FIGURE 14 C, D).

Male. Unknown.

Other material examined. PERU. Loreto: Río Samiria (44 ° 42 ’00”S; 74 ° 18 ’00”W), 1 ♀, 16.V. 1990, T. Erwin et al. leg. ( MUSM).

Distribution. Known only from Loreto, Peru ( Fig. 16View FIGURE 16 B).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Anyphaenidae

Genus

Xiruana