Xiruana ajuricaba, 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: 218

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-FFEA-FFA2-FF23-FC6EFC76F881

treatment provided by

Plazi

scientific name

Xiruana ajuricaba
status

new species

Xiruana ajuricaba  new species

Figs 10View FIGURE 10 G –H; 16 B

Type material. Female holotype from Centro Universitário, Manaus 3 ° 6 ’0”S; 60 °01’0”W, Amazonas, Brazil, I. 1979, J. A. Rafael leg., deposited in INPA; female paratype from Reserva Florestal Adolpho Ducke 3 °05’S; 60 °00’W, Manaus, Amazonas, Brazil, 19.VII. 1991, Irene leg., deposited in IBSP 165979.

Etymology. The specific name is a noun in apposition honoring the leader of the indigenous nation Manaos, who lived in the region of Manaus in the XVIII century.

Diagnosis. Females of Xiruana ajuricaba  n. sp. are distinguished from congeneric females by the extremely curved anterior border of epigynal plate, almost touching the posterior border, with lateral ends reaching to the interior of the atrium ( Fig. 10View FIGURE 10 G).

Description. Female (Holotype). Coloration as in X. hirsuta  . Total length 4.9, carapace length 2.1, width 1.5. Clypeus height 0.06. Eye diameters and interdistances: AME 0.08, ALE 0.08, PME 0.08, PLE 0.08; AME –AME 0.04, AME –ALE 0.04, PME –PME 0.1, PME –PLE 0.08, ALE –PLE 0.02. Chelicerae 1.1 long, with four promarginal teeth and five retromarginal denticles. Leg measurements: Leg I—femur 1.5 / patella 0.7 / tibia 1.5 / metatarsus 1.1 / tarsus 0.6 / total 5.4; II— 1.4 / 0.6 / 1.1 / 1.0/ 0.5 / 4.6; III— 1.2 / 0.5 / 0.9 / 1.0/ 0.4 / 4.0; IV— 1.7 / 0.6 / 1.4 / 1.9 / 0.5 / 6.1. Leg spination: I—tibia v 2 - 2 -0, p0, r0, metatarsus v 2 -0-0, p0, r0; II—tibia v 1 - 1 -0, p0, r0, metatarsus v 2 -0-0, p0, r0; III—tibia v 1-2 - 2; IV—tibia v 1-2 - 2, p 1 - 1 - 1, r 1 - 1 - 1. Abdomen: length 2.6, epigastric furrow 0.5 from tracheal spiracle, spiracle 1.2 from base of spinnerets. Epigynum: posterior border enlarged; copulatory ducts strongly curved, almost forming a circle; seminal receptacles contiguous to the spermathecae; spermathecae oval, fertilization ducts longer than spermathecae width ( Figs 10View FIGURE 10 G, H).

Male. Unknown.

Other material examined. BRASIL, Amazonas: Manaus, (03°06’00”S; 60 °01’00”W), Centro Universitário, 1 ♀, 25.XI. 1978, J. A. Rafael leg. ( INPA).

Distribution. Known only from Manaus, Amazonas, Brazil ( Fig. 16View FIGURE 16 B).

INPA

Instituto Nacional de Pesquisas da Amazonia

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Anyphaenidae

Genus

Xiruana