Umbyquyra tucurui, 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 : 38-41

Umbyquyra tucurui gen. et sp. nov.

urn:lsid:zoobank.org:act:B9C76D3F-B8D8-4DA1-B47C-315D34E05706

Figs 6 , 25–26 , 29

Diagnosis

Males and females of Umbyquyra tucurui gen. et sp. nov. resemble those of U. paranaiba gen. et sp. nov. by a straight fovea ( Fig. 5E ), but this species can be distinguished from U. paranaiba gen. et sp. nov. and the other species by a retrolateral branch of the tibial apophysis with 5–6 strong distal spines ( Figs 25C , 26D ), and prolateral inferior and accessory keels being parallel to each other ( Figs 25A , 26 A–B). The female spermathecae resemble those of Umbyquyra paranaiba gen. et sp. nov., but in U. tucurui gen. et sp. nov. the base is narrower ( Fig. 25D ).

Etymology

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

Type material

Holotype

BRAZIL: ♂, Pará, Tucuruí , 3°46′02.9″ S, 49°41′10.2″ W, 17 Nov. 1987, S.M. Lucas leg. ( IBSP 104834 ). Paratype

BRAZIL: Pará, 1 ♀, Tucuruí, 3°46′02.9″ S, 49°41′10.2″ W, Equipe Resgate de Fauna leg. ( IBSP 107431).

Additional material examined

BRAZIL: Pará: 1 ♂, Tucuruí, Usina Hidrelétrica de Tucuruí, 3°49′58.3″ S, 49°39′02.0″ W, 25 Jun. 1987 ( IBSP 111694); 1 ♂, Ilha do Bananal, 3°17′45.4″ S, 49°39′26.4″ W, ( IBSP 107465); 1 ♀, same collection data as for preceding, 1984 ( IBSP 113965); 1 ♀, Ilha de Tocantins, 3°17′36.1″ S, 49°39′20.7″ W, Equipe Resgate de Fauna leg. ( IBSP 107414); 1 juv., same collection data as for preceding ( IBSP 107625); 1 ♂, same collection data as for preceding, 1984 ( IBSP 107931); 1 ♂, same collection data as for preceding ( IBSP 107413); 1 ♂, same collection data as for preceding ( IBSP 107707); 1 ♂, same collection data as for preceding ( IBSP 107466); 1 ♀, same collection data as for preceding ( IBSP 107417); 1 ♂, same collection data as for preceding ( IBSP 107419); 1 ♀, same collection data as for preceding ( IBSP 107622); 1 ♂, same collection data as for preceding ( IBSP 107416); 1 ♂, Vale do Caraipé, 3°37′57.3″ S, 49°38′56.6″ W ( IBSP 107708); 2 ♂♂, 1 ♀, Marabá, 5°22′47.7″ S, 49°07′57.4″ W ( IBSP 102657), Equipe Resgate de Fauna leg.; 1 ♂, same collection data as for preceding, 17 Nov. 1987 ( IBSP 102834); 1 ♂, Brejo Grande do Araguaia, 5°42′04.7″ S, 48°24′24.0″ W, Sep. 2015, R.M. Guedes leg. ( IBSP 168766); 1 ♂, same collection data as for preceding, Sep. 2015 ( IBSP 168767); 1 ♀, same collection data as for preceding, Sep. 2015 ( IBSP 168764); 1 ♂, same collection data as for preceding, Sep. 2015 ( IBSP 168765).

Description

Male (holotype, IBSP 104834)

In ethanol: color as U. belterra gen. et sp. nov. Total length 37. Carapace 13.5 long, 12 wide. Clypeus 0.2. Eye tubercle 1.3 long, 2 wide. AME 0.4 long, 0.4 wide; PME 0.3 long, 0.2 wide; ALE 0.3 long, 0.2 wide; PLE 0.4 long, 0.2 wide. Basal segment of chelicerae with 13 teeth. Labium 1.4 long, 1.8 wide, with 98 cuspules. Endites with 112–115 cuspules. Stridulatory organ with less than 10 long bristles on palp trochanter and on leg I ( Fig. 26 E–F). Palp: femur 6.3, patella 3.5, tibia 5.6, tarsus 2.7, total 18.1. Leg I femur 8.5, patella 6.5, tibia 10.5, metatarsus 9.5, tarsus 3.0, total 38. II 11.6, 6.4, 10.8, 9.5, 4.2, 42.5. III 10.1, 5.1, 8, 7, 5, 35.2. IV 12.7, 5.5, 11.3, 15.2, 6.1, 50.8. Spination: palp: patella d0-1p-1p-0- 0ap, tibia d0-0-1-1-0-0ap, v0-0-0-1r-1r-1r-0-1apr, p0-0-2-1-2-1-1-1-2-2-1app-2ap, r0-0-0-1-1ap. Leg I femur d0-0-1-0app, tibia d0-1p-1p-1p-1p-0-0ap, v0-0-0-1r-1r-1r-0-1apr, p0-1-0ap, metatarsus v0-1-0- 1app-1ap-1apr. II femur, 0-0-0-1p-0ap, tibia d0-1p-1p-0ap, v2r-0-2r-0-1r-1apr, metatarsus v0-1r-0-1r-0- 1ap, p0-1-0-1ap. III femur d0-0-1r-0ap, tibia v1-0-1-1p-1r-0-2app-1apr, p0-2-0-1-1-0-1ap, r1-0-1-0-1ap, metatarsus 0-0-0-1app-1apr, v0-1-1r-1p-1-1-1p-1r-0-0-0-2ap-1apr, p1-0-1-0-0ap, r0-1-0-0ap. IV femur r0-1-0-1-0-1ap, tibia p0-0-1-0ap, metatarsus d0-0-1-0-1-0ap, v1r-1-1p-1r-1p-1r-1r-1p-1r-1r-1p-1apr, p1-0-0-0-1-0-0-ap, r1-0-0-1-1-1-1p-0-1apr-1ap-1app. Tibial apophysis of leg I: retrolateral branch strongly projected; prolateral branch slightly less projected with very long distal spine and shorter sub basal spine ( Figs 25C , 26D ). PLS basal, median and apical segments 1.5, 1.5, 2.4 long, respectively.

Female (paratype, IBSP 107431)

In ethanol: same color as male. Total length 44. Carapace 21 long, 16 wide. Clypeus 0.4. AME 0.4 long, 0.4 wide; PME 0.2 long, 0.2 wide; ALE 0.2 long, 0.5 wide; PLE 0.2 long, 0.4 wide. Basal segment of chelicerae with 10 teeth. Labium 2 long, 2.5 wide, with 98 cuspules. Endites with 111–108 cuspules. Eye tubercle 1.6 long, 2.8 wide. Stridulatory organ as in male. Palp: femur 7.8, patella 4.6, tibia 4.1, tarsus 4.2, total 20.7. Leg I femur 11, patella 8.2, tibia 6.3, metatarsus 3.8, tarsus 3.5, total 32.8. II 9.6, 6, 6.6, 7, 3.8, 33. III 8.1, 5.8, 7, 8.3, 4.1, 33.3. IV 10.5, 6.1, 8.6, 11.6, 4.2, 41. Spination: palp: tibia v1- 0-1r-1r-1apr, p0-1-0ap. Legs I femur d0-0-1p-0ap, tibia v0-1-0-0-1ap, metatarsus v0-1-0-0-0-1ap-1apr. II tibia v0-1-0-1ap, p0-1-1-0ap, metatarsus v0-1-0-1app-1apr, p0-1-0ap, r0-0-2ap. III tibia v0-0-1app- 1apr, p1-0-0ap, metatarsus d0-0-1r-0-0-1-0ap, v0-1-1p-1r-0-1r-1app, p1-1-1ap. IV tibia v-0-1p-1-1app- 1apr, p0-1-1ap, metatarsus d0-0-1-0ap, v1r-1r-1p-1r-2r-1p-1r-1r-1apr. PLS basal, median and apical segments 2.1, 1.7, 3.1 long, respectively. Spermathecae with RS rounded, separated by approximately two diameters ( Fig. 25D ).

Distribution

Brazil: state of Pará ( Fig. 29 ).

Figures

Fig. 6. Umbyquyra tucurui gen. et sp. nov., ♂, from Tucuruí, Pará, Brazil (IBSP 104716). A. Tarsal claws, leg I, prolateral view. B. Tarsal organ, dorsal. C. Trichobothrium, tarsi I, lateral. D. Row of trichobotria, tarsi I, dorsal (arrows indicate the trichobothria). E. Labium, ventral. F. Cuspules of labium, detail.

Fig. 25. Umbyquyra tucurui gen. et sp. nov. A–C. Holotype, ♂, Tucuruí, Pará, Brazil (IBSP 104834). A. Palp, prolateral. B. Retrolateral. C. Tibial apophysis, ventral. D. Paratype, ♀, spermathecae, dorsal (IBSP 107431).

Fig. 26. Umbyquyra tucurui gen. et sp. nov., holotype, ♂, Tucuruí, Pará, Brazil (IBSP 104834). A. Palp, prolateral. B. Anterolateral. C. Retrolateral. D. Tibial apophysis, retrolateral. E. Stridulatory organ, trochanter. F. Trochanter I. Abbreviations: see Material and methods.

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.

Fig. 5. Fovea, carapace. A. Umbyquyra schimidti gen. et sp. nov. B. U. sapezal gen. et sp. nov. C. U. caxiuana gen. et sp. nov. D. U. cuiaba gen. et sp. nov. E. U. paranaiba gen. et sp. nov. F. U. belterra gen. et sp. nov.