Umbyquyra schmidti ( Rudloff, 1996 ) 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 : 20-23

Umbyquyra schmidti ( Rudloff, 1996) gen. et comb. nov.

Figs 5 , 13 , 14 , 31

Cyrtopholis schmidti Rudloff, 1996: 3 , figs 1̅2.

Acanthoscurria schmidti – Schmidt 2003: 143, fig. 345.

Diagnosis

Males and females of U. schmidti gen. et comb. nov. differ from those of the other species by a carapace with large procurve fovea and a cephalic region projected over the same ( Fig. 5A ), less than 15 stridulatory bristles on palp trochanter, less than 30 stridulatory bristles on leg I ( Fig. 14 E–F), conspicuous SA and A ( Fig. 13A ̅B) and tibial apophysis with prolateral reduced branch reduced ( Figs 13C , 14D ). Females differ from those of the other species by spermathecae with a cordiform basal area and SR close to each other emerging from the middle basal area ( Fig. 13D ).

Material examined

Type material

Holotype

BRAZIL: ♀, São Paulo, south of the city of São Paulo (no coordinates), Sep. 1995, H.U. Rechsteiner leg., examined by photos ( ZMB 30790).

Additional material

BRAZIL: Mato Grosso: 1 ♂, Cuiabá, 15°36′10.2″ S, 56°05′47.9″ W, 8 Oct. 1989, M. Serrano leg. ( IBSP 110728); 1 ♂, same collection data as for preceding, Oct. 1972, G.R. Kloss and F. Val leg. ( MZSP 28890); 1 ♀, Pontes e Lacerda, 15°14′01.4″ S, 59°19′47.0″ W, 5 Jun. 2002, I. Knysak leg. ( IBSP 110250).

Description

Male (IBSP 110728)

In ethanol: same color as U. paranaiba gen. et sp. nov. Total length 25. Carapace 7.5 long, 6.7 wide. Clypeus 0.4. AME 0.3 long, 0.33 wide; PME 0.1 long, 0.2 wide; ALE 0.2 long, 0.4 wide; PLE 0.3 long, 0.2 wide. Basal segment of chelicerae with 10 teeth. Labium 1 long, 1.5 wide, with 110 cuspules. Endites with 125–127 cuspules. Eye tubercle: 1.0 long, 1.6 wide. Stridulatory bristles with less than 15 bristles on palp trochanter and less than 30 on leg I ( Fig. 14 E–F). Palp: femur 6.0, patella 2.2, tibia 5.2, tarsus 2.2, total 15.6. Leg I femur 9.8, patella 2.8, tibia 8.6, metatarsus 7.5, tarsus 4.4, total 33.1. II 7.5, 3.6, 6, 7, 4.1, 28.2. III 7.4, 3.3, 5.4, 8.1, 3.6, 27.8. IV 7, 3.2, 8.3, 10, 6.1, 34.6. Spination: palp: tibia v0-0-0-1p-1r-3ap, p0-0-1-1ap. Leg I femur d0-0-1apr, tibia v0-1-2app, r0-1-0-3ap, metatarsus v-0-1ap, r0-1ap. II femur d0- 0-1apr, tibia v0-0-1-1r-0-0-1app, metatarsus v0-1r-1p-1r-0-1apr-1ap-1app. III tibia v0-0-1-1p-1ap-1app, r0-0-1-0ap, metatarsus d0-0-0-1apr, v0-0-1p-0-1apr-1-1app, p0-1-1ap, r0-1-1ap. IV tibia v0-0-1-1r-1r- 0ap, p0-0-1-0ap, r0-1-0-1-0ap, metatarsus d0-0-1r-1p-0-0ap, v1p-1r-1-1-1p-1r-1-1r-1-1p-1r-1p-1ap, p0- 0-1-0ap. Tibial apophysis of leg I: retrolateral branch large and slightly projected with two strong distal spines and two median setae on projection; prolateral branch inconspicuous with distal and sub distal spines ( Figs 13C , 14D ). PLS: basal, median and apical segments 2.0, 2.2, 0.9 long, respectively.

Female (IBSP 110250)

In ethanol: same color as U. paranaiba gen. et sp. nov. Total length 17.8. Carapace 5.7 long, 5.1 wide. Clypeus 0.4. Eyes: anterior row slightly procurved and posterior row recurved. AME 0.38 long, 0.35 wide; PME 0.2 long, 0.15 wide; ALE 0.4 long, 0.3 wide; PLE 0.23 long, 0.3 wide. Basal segment of chelicerae with eight teeth. Labium 1.5 long, 2.0 wide, with 115 cuspules. Endites with 130–134 cuspules. Eye tubercle 1.5 long, 2.0 wide. Stridulatory bristles as in male. Palp: femur 5.8, patella 2.5, tibia 6.4, tarsus 3.3, total 18. Leg I femur 6.7, patella 2.7, tibia 6.3, metatarsus 4, tarsus 3.5, total 23.2. II 6.0, 2.5, 3.7, 3.3, 3.2, 18.7. III 5.4, 1.6, 3.4, 4, 3.2, 17.6. IV 6.4, 2.3, 6, 6.5, 3.5, 24.7. Spination: palp: femur d0-0-1app, tibia v0-1r-1apr, r0-0-1ap. Legs I tibia v0-1-0ap, metatarsus v0-1-0-0-0ap. II tibia v0- 1-0ap, metatarsus v0-0-1-0ap. III tibia v0-0-1p-1r-0app, p0-1-1-0-0app, metatarsus d0-0-0-1-1ap, v0- 0-1p-1r-1r-2apr-1app, p1-1-1-0-1app, r0-0-1-0-1ap. IV tibia d0-0-1p-1r-0-0-1apr-1app, metatarsus d0- 0-1p-1r-0-0-1apr-1app, v1-1-1-1-1r-1p-1-1-1p-1r-1-1r-1ap, 0-0-1-0-0-1app, r0-0-1-0-1ap. PLS basal, median and apical segments 1.6, 1.8, 1.6 long, respectively. Spermathecae with oval RS, apart from each other by approximately their own diameter, and elongated ducts ( Fig. 13D ) emerging from a rounded basal area resembling U. caxiuana gen. et sp. nov. but the apex of the SR is not so globular.

Remark

The other female from the same locality cited in Rudloff (1996), not designated as a type, was not located.

Distribution

Brazil: states of Mato Grosso and São Paulo ( Fig. 31 ).

Figures

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.

Fig. 13. Umbyquyra schmidti (Rudloff, 1996) gen. et comb. nov. A–C. ♂, Cuiabá, Mato Grosso, Brazil (IBSP 110728). A. Palp prolateral. B. Retrolateral. C. Tibial apophysis, retrolateral. D. ♀, spermathecae, dorsal (IBSP 107159).

Fig. 14. Umbyquyra schmidti (Rudloff, 1996) gen. et comb. nov., ♂, Cuiabá, Mato Grosso, Brazil (IBSP 110728), A. Palp prolateral. B. Anterolateral. C. Retrolateral. D. Tibial apophysis, retrolateral. E. Stridulatory organ, palp trochanter. F. Trochanter I. Abbreviations: see Material and methods.

Fig. 31. Geographic distribution records of species of Umbyquyra gen. nov.: U. cuiaba gen. et sp. nov. and U. schmidti (Rudloff, 1996) gen. et comb. nov.