Umbyquyra cuiaba, Gargiulo & Brescovit & Lucas, 2018

Gargiulo, Fabio de F., Brescovit, Antonio D. & Lucas, Sylvia M., 2018, Umbyquyra gen. nov., a new tarantula spider genus from the Neotropical region (Araneae, Mygalomorphae, Theraphosidae), with a description of eight new species, European Journal of Taxonomy 457, pp. 1-50 : 25-30

publication ID

https://doi.org/ 10.5852/ejt.2018.457

publication LSID

lsid:zoobank.org:pub:90509851-4A60-4A51-8D39-64457010B6EE

DOI

https://doi.org/10.5281/zenodo.3818864

persistent identifier

https://treatment.plazi.org/id/75D2C35B-4325-402E-A169-0748BEB42334

taxon LSID

lsid:zoobank.org:act:75D2C35B-4325-402E-A169-0748BEB42334

treatment provided by

Valdenar

scientific name

Umbyquyra cuiaba
status

gen. et sp. nov.

Umbyquyra cuiaba View in CoL gen. et sp. nov.

urn:lsid:zoobank.org:act:75D2C35B-4325-402E-A169-0748BEB42334

Figs 16 View Fig , 17 View Fig , 18 View Fig C–D, 31

Diagnosis

Males and females of Umbyquyra cuiaba gen. et sp. nov. resemble those of U. palmarum gen. et comb. nov. by a large procurved fovea delimitating the projection of the cephalic region ( Fig. 5D View Fig ) and by a male palpal bulb with the shape and size of keels, but differ by the tegulum being more compact ( Figs 16 View Fig A–B, 17A–C) and by females having a spermathecae with a very narrow basal area ( Fig. 16D View Fig ).

Etymology

The species epithet is a noun in apposition taken from the type locality.

Type material

Holotype

BRAZIL: ♂, Mato Grosso, Cuiabá , 15°36′10.2″ S, 56°05′47.9″ W, 21 Oct. 2007, M. Shiraiwa leg. ( IBSP 167423 View Materials ).

GoogleMaps

Paratypes

BRAZIL: Mato Grosso: 1 ♀, Canarana, 13°33′32.3″ S, 52°16′06.8″ W, 16 Jul. 2000, R.A.K. Ribeiro leg. ( IBSP 108933); 1 ♂, Cuiabá, 15°36′10.2″ S, 56°05′47.9″ W, 03 Sep. 2013, F.B.P. Bettiol leg.

( UFMT 0974); 1 ♂, same collection data as for preceding, Oct. 1972, G.R. Kloss and F. Val leg. ( MZSP 28890); 1 ♂, same collection data as for preceding, Nov. 2006 ( UFMT 0972).

Additional material

BRAZIL: Pará: 2 ♂♂, Marabá, 5°21′26.5″ S, 49°06′33.3″ W ( IBSP 107423). – Mato Grosso: 1 ♂, Cuiabá, 15°36′10.2″ S, 56°05′47.9″ W, 8 Oct. 1989, M. Serrano leg. ( IBSP 167428); 1 ♂, same collection data as for preceding, 8 Sep. 2000, M. Shiraiwa leg. ( UFMT 0969); 1 ♀, Barra do Garças, 15°53′26.7″ S, 52°15′43.1″ W, Feb. 1990, F.T. Carvalho leg. ( IBSP 107159); 1 ♀, Parque Nacional da Chapada dos Guimarães, near Cachoeira Véu de Noiva, 15°24′22.9″ S, 55°50′1.1″ W, 11 Aug. 2015, R.P. Indicatti and B. Gambaré leg. ( IBSP 167419); 1 ♂, Base UFMT, Pirizal, 16°14′26.8″ S, 56°22′33.1″ W, 28 Dec. 2012, A. Junior leg. ( UFMT 0971); 1 ♂, Acorizal, 15°11′53.0″ S, 56°21′59.8″ W, 2 Sep. 2013, A.S. Santos leg. ( UFMT 0973); 2 ♂♂, Várzea Grande, 15°39′23.1″ S, 56°08′12.0″ W, 17 Jun. 1989, G.A. Silva leg. ( IBSP 107159).

Description

Male (holotype, IBSP 10728)

In life: light brown carapace and legs. Abdomen dark brown covered by red hairs with dark patch on dorsal side ( Fig. 16F View Fig ). In ethanol: same color as U. paranaiba gen. et sp. nov. Total length: 33.0. Carapace: 13.5 long, 12.5 wide. Clypeus: 0.4. Eye tubercle: 1.6 long, 2.1 wide. Eyes: anterior row slightly procurved and posterior recurved ( Fig. 16E View Fig ). AME: 0.3 long, 0.3 wide; PME: 0.25 long, 0.17 wide; ALE: 0.2 long, 0.35 wide; PLE: 0.2 long, 0.35 wide. Basal segment of chelicerae with 11 teeth. Labium: 2.0 long, 2.0 wide, with 112 cuspules. Endites with 150–155 cuspules. Stridulatory bristles with around 15 bristles on palp trochanter and 45 on leg I ( Fig. 17 View Fig E–F). Palp: femur 7, patella 2.6, tibia 7.4, tarsus 2.7, total 20. Leg I femur 10.8, patella 4.5, tibia 9.4, metatarsus 10.3, tarsus 6.7, total 41.7. II 12.7, 2.5, 8.5, 10.1, 6.6, 40.4. III 10.5, 2.0, 8.4, 9.7, 5.7, 36.3. IV 11.4, 3.0, 9.6, 11.2, 5.8, 50. Spination: palp: femur d0-0-2app, tibia v0-1p-0ap, p1-2-1-1-1-1-2-1-1-3ap, r0-1-3ap. Legs I tibia v2-1-1r-1-1r-1- 1ap-1apr-1app, r0-1-3ap, metatarsus v-1-0-0-1ap. II tibia v1-1r-1-1-1ap, p0-1-0-1-0ap, metatarsus v0- 1-1-0-0-1ap, p0-1-0ap. III femur d0-0-1apr, tibia d0-0-1r-1apr, v1-1-0-1apr-2app, p0-1-1ap, r1-1-0-1ap, metatarsus d0-1p-1r-1p-0-0ap, v1-1p-1-1p-0-1apr-1ap-1app, p0-1-0-0ap, r1-1-1-1ap. IV tibia v1-1-1-2- 1r-1p-1-0ap, p0-1-1-0ap, r0-1-0-1-0-1ap, metatarsus d0-1r-1p-0-1ap, v1-1-1p-1r-1p-1r-2app-2apr, p0- 0-1-0ap, r0-1-0-0-1ap. Metatarsus I with a slight basal curvature. Tibial apophysis of leg I: retrolateral branch projected with two strong distal spines with 2-3 median setae; prolateral branch very short with a distal spine and a sub basal spine ( Figs 16C View Fig , 17D View Fig ). PLS basal, median and apical segments 1.8, 1.8, 2.0 long, respectively.

Female (paratype, IBSP 8933)

In ethanol: same color as Umbyquyra paranaiba gen. et sp. nov., except black abdomen in the posterior half ( Fig. 16F View Fig ). Total length: 31. Carapace 13.5 long, 11 wide. Clypeus 0.35. Eye tubercle 1.2 long, 2.0 wide. AME 0.4 long, 0.35 wide; PME 0.25 long, 0.25 wide; ALE 0.25 long, 0.45 wide; PLE 0.25 long, 0.2 wide. Basal segment of chelicerae with 10 teeth. Labium 1.5 long, 2 wide, with 100 cuspules. Endites with 120–125 cuspules. Stridulatory bristles as in male. Palp: femur 8.1, patella 1.7 tibia 4.2, tarsus 5, total 19. Leg I femur 9.6, patella 3.0, tibia 8.3, metatarsus 5.6, tarsus 4.2, total

30.7. II femur 6.8, patella 3.5, tibia 6.1, metatarsus 4.8, tarsus 3.8, total 25. III femur 6.8, patella 4.0, tibia 4.7, metatarsus 6.7, tarsus 4.0, total 26.2. IV femur 7.0, patella 4.0, tibia 10, metatarsus 10.5, tarsus 4.2, total 35.7. Spination: palp: femur d0-0-2app, tibia v0-1p-0ap, p1-2-1-1-1-1-2-1-1-3ap, r0- 1-3ap. Leg I tibia v2-1-1r-1-1r-1-1ap-1apr-1app, r0-1-3ap, metatarsus v-1-0-0-1ap. II tibia v1-1r-1-1- 1ap, p0-1-0-1-0ap, metatarsus v0-1-1-0-0-1ap, p0-1-0ap. III femur d0-0-1apr, tibia d0-0-1r-1apr, v1- 1-0-1apr-2app, p0-1-1ap, r1-1-0-1ap, metatarsus d0-1p-1r-1p-0-0ap, v1-1p-1-1p-0-1apr-1ap-1app, p0-1-0-0ap, r1-1-1-1ap. IV tibia v1-1-1-2-1r-1p-1-0ap, p0-1-1-0ap, r0-1-0-1-0-1ap, metatarsus d0- 1r-1p-0-1ap, v1-1-1p-1r-1p-1r-2app-2apr, p0-0-1-0ap, r0-1-0-0-1ap. Metatarsus I with a slight basal curvature. PS basal, median and apical segments 1.8, 1.8, 2.0 long, respectively. Spermathecae with oval and elongated RS, with short ducts, apart from each other by approximately three times their diameter ( Fig. 16D View Fig ).

Distribution

Brazil: states of Mato Grosso and Pará ( Fig. 31 View Fig ).

Natural history

This species is very aggressive, raising the abdomen or legs I when disturbed ( Fig. 18D, H View Fig ). The female from Parque Nacional da Chapada dos Guimarães (IBSP 167419) was collected in a dirt hill, inside a hole with a 3 cm opening diameter which did not contain any silk.

IBSP

Instituto Biologico de Sao Paulo

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theraphosidae

SubFamily

Theraphosinae

Genus

Umbyquyra

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