Bioacoustics of Amazonius germani

Description. Female holotype (MPEG 007435). Total length, not including chelicerae or spinnerets 36.79. Carapace 14.18 long, 13.47 wide, 2.77 high. Chelicera: 8.01 long. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 12.39 7.15, 10.45, 8.78, 5.60, 44.37; II: 11.14, 6.59, 8.80, 7.71, 4.96, 39.20; III: 10.46, 6.00, 7.88, 8.55, 4.87, 37.76; IV: 13.37, 6.39, 11.86, 12.98, 5.20, 49.80; Palp: 8.31, 4.69, 6.15, -, 5.08, 24.23. Midwidths: femora I–IV= 2.76, 2.91, 3.00, 2.68, palp= 1.97; patellae I–IV= 2.74, 2.77, 2.83, 2.88, palp= 2.31; tibiae I–IV= 2.56, 2.59, 2.54, 2.61, palp= 2.04; metatarsi I–IV= 2.09, 1.94, 1.85, 1.75; tarsi I–IV= 2.02, 2.06, 1.92, 1.85, palp= 1.78. Abdomen: 22.61 long, 13.47 wide. Spinnerets: PMS, 2.28 long, 1.02 wide, 0.57 apart; PLS, 2.95 basal, 2.38 middle, 3.51 distal; midwidths 1.45, 1.51, 1.14, respectively. Carapace: 1.05 times longer than wide; cephalic region slightly raised, thoracic striae conspicuous. Fovea: deep, straight, 1.97 wide. Eyes: eye tubercle 0.45 high, 2.15 long, 3.27 wide. Clypeus: absent. Anterior eye row straight, posterior slightly recurved. Eye size and interdistances: AME 0.78, ALE 0.76, PME 0.48, PLE 0.72, AME–AME 0.61, AME–ALE 0.24, AME–PME 0.26, ALE–ALE 2.28, ALE–PME 0.49, PME–PME 1.92, PME–PLE 0.19, PLE–PLE 2.49, ALE–PLE 0.27. Maxilla: length to width 1.67. Cuspules: ca. 247 spread over ventral inner heel. Labium: 2.18 long, 2.55 wide, with ca. 211 cuspules spaced by one diameter from each other on anterior third. Chelicera: basal segment with 11 teeth in row. Strikers: Long and short filiform setae, disposed without discernible pattern on a ventral-basal portion of chelicera before and beginning of teeth row ( Fig. 409 ). Sternum: 7.08 long, 6.31 wide. Legs: Formula: IV I II III. Length leg IV to leg I: 1.12. Scopula: Tarsi I–IV fully scopulate; IV with a few sparse setae. Metatarsi I–II fully scopulate; III 2/3 distal; IV 1/2 distal. IV divided by rows of setae. Spination: Palps and legs (ventral apical: tibia/metatarsi): Palp 1 p, 2; I: 2/0; II 2/0; III 3/2; IV 2/2. Maxillary stridulatory organ weakly developed, composed of slightly thick setae with rugose aspect, not disposed on an ordered line, grouped like a spot on prolateral face of the maxillae ( Fig. 408 ). Spermathecae: Two spermathecae completely separated, slightly curved apically with a subdivided apical lobe ( Fig. 405 ). Color pattern (preserved in alcohol): Carapace brown, leg and palpal femora brown, abdomen with a central line connected with 3 transverse lateral dark stripes. Description. Male paratype (SMF 38041). Total length, not including chelicerae or spinnerets 28.32. Carapace 12.50 long, 11.49 wide, 3.53 high. Chelicera: 7.20 long. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 14.99, 7.05, 12.67, 12.45, 6.12, 53.28; II: 13.67, 6.39, 11.33, 11.63, 5.73, 48.75; III: 11.78, 5.46, 9.92, 11.47, 5.44, 44.07; IV: 14.70, 6.32, 13.94, 16.23, 5.77, 56.96; Palp: 8.38, 4.49, 7.69, -, 2.55, 23.11. Midwidths: femora I–IV= 2.50, 2.50, 2.47, 2.45, palp= 1.75; patellae I–IV= 2.36, 2.45, 2.29, 2.23, palp= 1.81; tibiae I–IV= 1.93, 1.76, 1.76, 1.90, palp= 1.81; metatarsi I–IV= 1.38, 1.32, 1.30, 1.20; tarsi I–IV= 1.26, 1.21, 1.31, 1.27, palp= 1.73. Abdomen: 15.42 long, 9.78 wide. Spinnerets: PMS, 1.83 long, 0.68 wide, 0.47 apart; PLS, 2.88 basal, 2.23 middle, 2.85 distal; midwidths 1.04, 0.99, 0.73, respectively. Carapace: 1.09 times longer than wide; cephalic region slightly raised, thoracic striae conspicuous. Fovea: deep, straight, 1.50 wide. Eyes: eye tubercle 0.37 high, 1.99 long, 2.84 wide. Clipeus: absent. Anterior eye row straight, posterior slightly recurved. Eye size and interdistances: AME 0.70, ALE 0.65, PME 0.40, PLE 0.59, AME–AME 0.40, AME–ALE 0.20, AME–PME 0.21, ALE–ALE 2.02, ALE–PME 0.43, PME–PME 1.63, PME–PLE 0.10, PLE–PLE 2.16, ALE–PLE 0.25. Maxilla: length to width 1.98. Cuspules: ca. 206 spread over ventral inner heel. Labium: 1.60 long, 2.20 wide, with ca. 153 cuspules spaced by one diameter from each other on anterior third. Chelicera: basal segment with 11 teeth in row. Strikers: Long and short filiform setae, disposed without discernible pattern on a ventral-basal portion of chelicera before and beginning of teeth row ( Fig. 407 ). Sternum: 6.80 long, 5.41 wide. Legs: Formula: I = IV II III. Length leg IV to leg I: 1.07. Scopula: Tarsi I–IV fully scopulate. Metatarsi I–II fully scopulate; III 2/3 distal; IV 1/3 distal. IV divided by rows of setae. Spination: Palps and legs (ventral apical: tibia/metatarsi): Palp 0; I: 1 behind retrolateral process of tibial apophysis; II: 2/0; III 2/2; IV 2/2. Maxillary stridulatory organ: weakly developed, composed of slightly thick setae with rugose aspect, not disposed on an ordered line, grouped forming an oval patch on the prolateral face of the maxillae ( Fig. 406 ). Tibial apophysis ( Figs 402–404 ): two processes, retrolateral longer than prolateral, one spine at side of prolateral, one at apical retrolateral process and another on its median retrolateral area. A subtriangular protuberance behind retrolateral process. Metatarsus I folds on retrolateral side of tibial apophysis. Palp ( Figs 398–401 ): tegulum length 1.22, width 1.50, embolus proximal width 0.59, length 3.75. Embolus proximal portion straight. Embolus length to tegulum length: 3.07. Embolus tapering from the base to the tip, with an accentuated curvature to retrolateral side distally. Embolus tip roughly straight. Color pattern (preserved in alcohol): Carapace, legs, palpal femora, and tibiae light brown, except for orange tarsi. Whitish rings on distal femora, patellae, tibiae and etatarsi. Two whitish stripes over dorsal femora and patellae of all legs. Abdomen beige with three faded dark stripes on both lateral areas. Coxae, sternum, maxillae and labium light brown, a littler darker on anterior half of coxae I and the maxillae.