Bioacoustics of Anyphaena triangularis

Description Female Total length 6.9. Carapace yellow, ocular area slightly darker, pattern with two darker longitudinal brown parallel bands around cephalic area and fovea, clypeus dark yellow ( Fig. 10A, D ). Sternum surface white, intercoxal triangles present on all legs. Labium yellow, white at tip, longer than wide. Endites yellow, rectangular, slightly broader at tip ( Fig. 10C ). Chelicerae dark yellow, paturon dorsum without pattern ( Fig. 10B, D ), promargin with five teeth, retromargin with eleven to twelve denticles. Leg coloration: yellow covered with darker patches from femora to tarsi. Abdomen yellow, hirsute, dorsal surface delineated with light brown pattern and several chevrons over posterior half, anterior central half with darker median band, lateral surfaces light brown pattern only at top, lateral sides and ventral surface white, tracheal spiracle at middle ( Fig. 10A–C ). Copulatory openings under semicircular and sclerotized hood. Hood with straight edge slightly projected at center. Atrium short, lateral borders sinuous, extended in posterior region ( Figs 11E–F , 12G–H ). Copulatory ducts sclerotized, short, entering spermathecae on anterior surfaces. Seminal receptacles rounded and located in anterior third of copulatory ducts. Fertilization ducts short, straight, and emerging from lateral surfaces of spermathecae ( Figs 11E–F , 12G–F ). Cephalothorax length 2.93, thoracic width 2.1, cephalic width 0.97. Clypeus height 0.09. Eye diameters: AME 0.07, ALE 0.13, PME 0.12, PLE 0.12. Eye interdistances: AME– AME 0.07, AME–ALE 0.04, ALE–PLE 0.06, PME–PME 0.12, PME–PLE 0.09. Femur lengths: I 3.38, II 3.05, III 2.29, IV 3.43. Leg spination: femur I d1-1-1, p0-2-1, r0-1-1. Tibia I v2-2-0, p1-1-1, r1-1-1. Metatarsus I v2-2-0, p1-1-1, r1-1-1. Femur II d1-1-1, p0-1-1, r0-1-1. Tibia II v2-2-0, p1-1-1, r1-1-1. Metatarsus II v2-2-0, p1-1-1, r1-1-1. Femur III d1-1-1, p0-1-1, r0-1-1. Tibia III v2-2-2, p0-1-1, r0-1-1. Metatarsus III v2-2-2, p1-1-2, r1-1-2. Femur IV d1-1-1, p0-0-1, r0-0-1. Tibia IV v2-2-2, p0-1-1, r0-1-1. Metatarsus IV v2-2-2, p1-1-2, r1-1-2. Male Total length 6.9. Cephalothorax and abdomen coloration as in female ( Fig. 10E ). Retromargin of chelicerae with seven to eight denticles. Coxa III tubercle roughly rectangular with posterior apical spine. Coxa IV with a long, curved spur, located at retrolateral basal corner ( Fig. 12E–F ). Ventral tegular apophysis bifurcated ( Fig. 12A (arrow)). Median apophysis hook-shaped in ventral view. Embolus long, translucent and filiform ( Figs 11A, D , 12A, D ). RTA anterior branch curved with sclerotized margin, posterior branch of RTA large, distal edge with translucent keel ( Figs 11A, C–D , 12A, C–D ). Prolateral apophysis of palpal tibia small, conical ( Figs 11B–C , 12B–C ). Pedipalp tibia proportions longer than wide, stridulatory ridges extending from ventral branch of median tegular apophysis to tibial distal margin ( Figs 11A–B, D , 12A–B, D ). Cephalothorax length 2.78, thoracic width 2.15, cephalic width 0.97. Clypeus height 0.11. Eye diameters:AME 0.09, ALE 0.16, PME 0.16, PLE 0.15. Eye interdistances: AME–AME 0.05, AME–ALE 0.04, ALE–PLE 0.05, PME–PME 0.1, PME–PLE 0.09. Femur lengths: I 3.52, II 3.19, III 2.38, IV 3.57. Leg spination as in female except: femur IV r0-1-1. Variation Females (N =10): total length 6.94 (± 0.36), cephalothorax length 2.73 (± 0.11), thoracic width 2.06 (± 0.07), cephalic width 1.12 (± 0.06), femur I 3.32 (± 0.12). Males (N=10): total length 6.66 (± 0.26), cephalothorax length 2.74 (±0.1), thoracic width 2.19 (± 0.1), cephalic width 1.06 (± 0.06), femur I 3.6 (± 0.06).