Bioacoustics of Umbyquyra belterra

Description Male ( holotype , IBSP 167421) In ethanol: carapace dark-brown as dorsal face of long, 0.5 abdomen. Total length 41. Carapace 19.4 long, 16.3 wide. Clypeus 0.3. Eye tubercle 1.8 long, 2.7 wide. AME 0.5 wide; PME 0.3 long, 0.2 wide; ALE 0.3 long, 0.6 wide; PLE 0.3 long, 0.4 wide. Basal segment of chelicerae with 10 teeth. Labium: 2.2 long, 3.1 wide, with 128 cuspules. Endites with 165–168 cuspules. Stridulatory organ contains more than 10 very evident bristles on palp trochanter and leg I ( Fig. 22 E–F). Palp: femur 9.8, patella 4.2, tibia 9, tarsus 2.8, total 25.8. Tarsi II very short. Leg I femur 18.4, patella 4.7, tibia 16, metatarsus 14.3, tarsus 8.3, total 61.7. II 15.5, 3.5, 14.5, 14, 5.4, 52.9. III 16, 5.7, 12.2, 15.3, 7.8, 57. IV 18.2, 8, 16, 22.9, 9, 74. Spination: palp: tibia v0-0-1r0ap, p1-1-1-1-1-1-1-1-1ap, r0-0-1-0ap. Legs I femur d0-0-1app, tibia v2-0-2-0-2ap, p0-1-0-1-0ap, metatarsus v0-1-0-0-0-1apr-1-1app. II tibia v2-0-2-1r-1r-1app-1apr, p0-1-0-1-0ap, metatarsus v0-1-1-0-1app-1apr, p0-1-0-1ap. III femur d0-0-1apr, tibia v1-1p-1p-1-0- 1app-1apr, p0-1-0-1-0ap, r1-1-1-1app, metatarsus d0-0-0-1app-1apr, v1-1p-1p-1r-1-1p-1p-1p-1r-1app-1-1apr, p1-0-1-1-0-1-1ap, r0-0-1-0-0-1ap. IV tibia v1-1-1r-1p-1-1p-1-1apr, p0-1-1-0-2ap, r1-0-0-1-1ap, metatarsus v1-1-1-1p-1r-1-1p-1-1r-1-1-1-1p-1-1r-1p-1-1-1app-1ap-1apr, p0-0-1-0-1ap, r0-0-1-0-0-1- 0ap. Metatarsus I with a slight basal curvature. Tibial apophysis of leg I: retrolateral branch projected with two strong distal spines with two median setae; prolateral branch projected with a distal spine and sub basal one ( Figs 21C , 22D ). PLS basal, median and apical segments 3.1, 2.6, 3.2 long, respectively. Male palp with PAc ( Fig. 22A ). Female ( paratype , IBSP 167420) In ethanol, same color as male. Total length (damaged). Carapace (damaged). Clypeus: 0.2. AME: 0.5 long, 0.5 wide; PME 0.4 long, 0.3 wide;ALE: 0.4 long, 0.2 wide; PLE: 0.4 long, 0.3 wide. Basal segment of chelicerae with 11 teeth. Labium: 2.3 long, 3 wide. Eye tubercle 2.8 long, 2.1 wide. Stridulatory bristles as in male. Palp: femur 11.2, patella 4.5, tibia 9.8, tarsus 7.5, total 33. Tarsi II short as in male. Leg I femur 15.5, patella 9, tibia 14.2, metatarsus 11, tarsus 7.4, total 57.2. II 12.6, 8.1, 12.6, 11, 7.2, 51.5. III 13, 7.7, 12, 11, 7.1, 50.8. IV absent. Spination: palp: femur p0-1-0ap. Legs I tibia v0-0-1p-1r-1app-1ap-2apr, metatarsus d0-1p-0ap, v-0-1-2ap. II tibia v0-1-1app-1ap-1apr, p-0-1-0ap, metatarsus v01-1-0-1app-1apr. III tibia v0-1-0-1-0-1p-1p-1apr, p0-1-0ap, metatarsus v0-1-1-0-1apr-1ap-1app, p0- 1-0ap. IV tibia d1r-1r-1apr, v0-1-1p-1ap-2app, p0-1-0-1-0ap, r0-1-0-1-0-1ap, metatarsus d1p-1r-1app, v2r-1p-1r-1p-1r-1apr-1ap, p0-1-0ap, r0-1-0ap. Spermathecae with two RS with long ducts and more or less pentagonal basal area ( Fig. 21D ).