Bioacoustics of Tutaibo carita

Description. Male holotype (FCE-Ar 14441). Total length: 1.86. Carapace length: 0.77, width: 0.62. Clypeus height: 0.21. Sternum length: 0.47, width: 0.39. Chelicerae length: 0.23. Abdomen length: 1.08, width: 0.60, height: 0.55. Leg formula: I/IV/II/III. Leg lengths (I/II/III/IV): femora: 0.87/0.76/0.71/0.86; patellae: 0.17/0.17/0.18/0.18; tibiae: 0.80/0.62/0.53/0.74; metatarsi: 0.72/0.47/0.50/0.61; tarsi: 0.52/0.37/0.36/0.37; total: 3.08/2.39/2.28/2.76. Palp (femur, patella, tibia, cymbium): 0.27/0.09/0.15/0.43. Metatarsal trichobothria I‒III present, IV absent. TmI: 0.30. Eye diameters and interdistances: AME: 0.04, ALE: 0.05, PME: 0.05 and PLE: 0.05; AME-ALE: 0.05, PME-PLE: 0.06, AME-AME: 0.04, PME-PME: 0.08. Ocular region raised, eyes with black margins ( Figs 1C‒E ). Sparse setae present at ocular area, with two strong, stiff and contiguous procurved setae ( Figs 1C, E ). Clypeus glabrous. Carapace brown, narrowed anteriorly, longer than wide ( Figs 1D, E ). Chelicerae brown; chelicerae stridulatory striae ~22, ridged; chelicerae paturon with sparse small setae. Chelicerae promargin with six teeth in two groups (four and two teeth) ( Fig. 1C ), retromargin with four tiny teeth. Endites brown, lighter in the base, with setae. Labium dark brown. Sternum dark brown, with dispersed setae. Palps light brown. Legs long and slender, yellow. Dorsal tibial macrosetae 1-1-1-1. Abdomen elliptic, longer than wide, orange, ( Figs 1D, E ). Spinnerets pale light brown. Colulus present, ovoid, with setae. Palpal patella with one retrolateral macroseta. Palpal tibia with one retrolateral and one dorsal trichobothrium, a short rounded retrolateral tibial apophysis and a beak-shaped prolateral tibial apophysis ( Figs 1A , 6A ). Paracymbium L(turned)-shaped, with narrow base and long apex, with two setae ( Figs 1A , 6A ). Distal tegular sclerite with general shape as a cowboy hat, with hooked apophysis dorsodistally and inward curved proximal arm (1A, 6A). Distal suprategular apophysis long and narrow, with rounded apex ( Figs 1B , 6B ). Anterior radical process pointed ( Figs 1B , 6B ). Embolus coiled, long and distally narrow ( Figs 1A, B , 6A, B ). Female paratype (FCE-Ar 15083). Total length: 2.06. Carapace length: 0.74, width: 0.61. Clypeus height: 0.15. Sternum length: 0.45, width: 0.43. Chelicerae length: 0.30. Abdomen length: 1.40, width: 1.07, height: 1.10. Leg formula: I/VI/II/III. Leg lengths (I/II/III/IV): femora: 0.86/0.78/0.58/0.92; patellae: 0.20/0.20/0.19/0.20; tibiae: 0.78/0.70/0.50/0.71; metatarsi: 0.69/0.60/0.54/0.64; tarsi: 0.50/0.49/0.34/0.37; total: 3.03/2.77/2.15/2.84. Palp (femur, patella, tibia, tarsus): 0.27/0.12/0.18/0.30. Metatarsal trichobothria I‒III present, IV absent. TmI: 0.34. Eye diameters and interdistances: AME: 0.05, ALE: 0.06, PME: 0.06 and PLE: 0.05; AME-ALE: 0.05, PME-PLE: 0.07, AME-AME: 0.04, PME-PME: 0.06. Eyes with black margins. Setae present at ocular area. Clypeus glabrous. Carapace brown (darker in ocular region), narrowed anteriorly, larger than wide ( Figs 2C, D ). Chelicerae brown. Chelicerae promargin with five teeth, retromargin with five teeth. Endites brown, lighter in serrula area, with setae. Labium light brown. Sternum dark brown, with dispersed setae. Palps light brown. Legs long and slender, yellow. Dorsal tibial macrosetae 1-1-1-1. Abdomen oval, longer than wide, pale orange ( Figs 2C, D ). Spinnerets pale light brown. Colulus present, ovoid, light brown, with setae. Palpal tibia with one dorsal trichobothrium; palpal tarsus with two dorsal, one ventral and three ventroectal macrosetae. Epigynum with round spermathecae ( Fig. 2B ). Copulatory ducts highly sclerotized (copulatory ducts encapsulation present), arising ectally from the spermathecae and following a sinuous path to the posterior part of the anterior lobe of the dorsal plate ( Fig. 2B ). Fertilization ducts originate in the posterior part of spermatheca and are directed the epigynum ( Fig. 2B ). Anterior process of ventral plate with rounded anterior cavity ( Figs 2A, B , 6B ) inwards. Dorsal plate posterior lobe oblong and anteriorly concave, with lateral depressions ( Figs 2A , 6B ); dorsal plate anterior lobe piriform, and not enclosed anteriorly ( Figs 2A , 6B ). Variation: Males (n=5). Total length 1.84‒2.10; carapace length 0.77‒0.88, carapace width 0.61‒0.66; femur I 0.87‒0.92. Females (n=5). Total length 1.79‒2.20; carapace length 0.70‒0.77, carapace width 0.59‒0.61; femur I 0.81‒0.88. Males and females’ abdomen varies from pale to intense orange.