Bioacoustics of Umbyquyra tucurui

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 ).