Umbyquyra tapajos, 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 : 36-38

Umbyquyra tapajos gen. et sp. nov.

urn:lsid:zoobank.org:act:C862CAB2-4585-4B9C-8364-3DB8978445E7

Figs 23–24 , 29

Diagnosis

Males of Umbyquyra tapajos gen. et sp. nov. resemble those of U. belterra gen. et sp. nov. by the presence of a PAc ( Fig. 23C ), but differ by a more compact tegulum and keels being parallel to each other ( Figs 23 A–C, 24A–C). Umbyquyra tapajos gen. et sp. nov. presents a short and straight fovea while U. belterra have a recurve fovea.

Etymology

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

Type material

Holotype

BRAZIL: ♂, Pará, Belterra, Flona do Tapajós , 2°35′46.2″ S, 54°55′50.7″ W, Oct. 2011, A.D. Brescovit et al. leg. ( IBSP 161738 ).

Paratype

BRAZIL, 1 ♂, same data as for holotype ( IBSP 161728).

Description

Male (holotype, IBSP 161738)

In ethanol: same color as U. belterra gen. et sp. nov. Total length 32. Carapace 12.3 long, 16.4 wide. Clypeus 0.6. Eye tubercle 2.3 long, 1.6 wide. Eyes: anterior row slightly procurved and posterior recurved. AME 0.41 long, 0.45 wide; PME 0.2 long, 0.3 wide; ALE 0.27 long, 0.53 wide; PLE 0.25 long, 0.44 wide. Basal segment of chelicerae with 12 teeth. Labium: 2.2 long, 1.7 wide, with 120 cuspules. Endites with 180–183 cuspules. Stridulatory bristles with around 10–12 bristles on palp trochanter and 35-45 on leg I ( Fig. 24 E–F). Palp: femur 7.7, patella 3.2, tibia 7.6, tarsus 2.7, total 21.2. Leg I femur 14.3, patella 4.8, tibia 12.5, metatarsus 12.6, tarsus 7.5, total 51.7. II 13.8, 4.1, 9.7, 12.5, 6.4, 46.5. III 13.0, 4.6, 9.7, 14.0, 7.0, 48.3. IV 14.7, 4.2, 13.3, 18.7, 7.1, 58. Spination: palp: femur d0-0-1app, tibia v0-1r-0ap, p1- 1-2-1-1-1-2-1-2ap, r0-0-1-0ap. Legs I femur d0-0-1app, tibia v3-1-1-1-1apr-1app, p0-1-0-0-0ap, p0-1- 0-0-0ap, metatarsus v0-0-0-1app-1apr, p0-1-0-0ap, r0-1-0-0ap. II femur, 0-0-0-1app, tibia v0-0-1-1-0ap, p0-1-0-1-0ap, r1-0-1-1-0ap, metatarsus v1-2-1-1p-1r-0-1app, p1-0-1-0-0ap, r0-1-0-0-1ap. III femur d0- 0-1apr, patella r0-1-0ap, tibia v0-0-1-1-0ap, 0-1-0-1-0ap, r1-0-1-1-0ap, metatarsus v1-2-1-1p-1r-0-1app, p1-0-1-0-0ap, r0-1-0-0-1ap. IV femur d0-0-1apr, tibia v0-1p-1-1p-1r-1p-1app-1ap-1apr, p1-1-1-1-1ap, metatarsus v1-1r-1p-1-1-1p-2-1p-1r-1app-1ap-1apr, p1-0-1-0-1-0ap, r0-1-0-0-1-0ap. Tibial apophysis of leg I: retrolateral branch projected with two strong distal spines with two median setae; prolateral branch slightly projected with distal and sub basal spines ( Figs 23D , 24D ). PLS basal, median and apical segments 2.5, 2.3, 3.0 long, respectively.

Female

Unknown.

Distribution

Brazil: state of Pará ( Fig. 29 ).

Figures

Fig. 23. Umbyquyra tapajos gen. et sp. nov., paratype, ♂, Flona do Tapajós, Belterra, Pará, Brazil (IBSP 161728). A. Palp, prolateral. B. Retrolateral. C. Anterolateral, distal area. D. Tibial apophysis, retrolateral. Abbreviations: see Material and methods.

Fig. 24. Umbyquyra tapajos gen. et sp. nov., paratype, ♂, Flona do Tapajós, Belterra, Pará, Brazil (IBSP 161728). A. Palp, prolateral. B. Retrolateral. C. Anterolateral. D. Tibial apophysis, retrolateral. E. Stridulatory organ, trochanter. F. Trochanter I.

Fig. 29. Geographic distribution records of species of Umbyquyra gen. nov.: U. belterra gen. et sp. nov., U. caxiuana gen. et sp. nov., U. tucurui gen. et sp. nov. and U. tapajos gen. et sp. nov.