Bioacoustics of Agyneta evadens

Description: Male : Total length 1.55; carapace length 0.68, width 0.51. CEPHALOTHORAX: Carapace dark brown, shiny, finely reticulate; lightly suffused with light gray along radiating lines, pars cephalica and margin. Sternum strongly suffused with gray. Clypeus height 2. Chelicerae apical half yellow, basal half suffused with dark gray; not excavated; seta-tipped tubercles absent; promargin five denticles; retromargin five tiny denticles. Cheliceral stridulatory organ easily visible ~10 striae, well spaced throughout. ABDOMEN: Uniformly dark gray, sometimes with faint, off-white broken chevrons ( Fig. 304 ). LEGS: Light yellow, with base of femur suffused with dark gray; leg I total length: 2.60; leg III total length: 1.83; Tm I: 0.23, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis elongated; dorsal apophysis curved with one or two pointed spurs; two retrolateral trichobothria and one dorsal ( Fig. 300 ). Cymbium triangular; glabrous depression present ( Fig. 300 ); dorsal cymbial tubercle rounded and smooth; ventral tubercle smooth and hookshaped; prolateral notch shallow ( Fig. 301 ). Paracymbium apical pocket long, anterior pocket long with strong pointed tip, posterior pocket small ( Fig. 300 ). Embolus tip wide, pointed with large prong; basally with one prong; Fickert’s gland absent; ventral lamella rugose with one large spike basally; thumb reaching the embolus proper ( Fig. 302 ). Embolus proper set apically on a vertical ridge, of equal part ( Fig. 302 ). Anterior terminal apophysis wide with sclerotized tip and thin, curved protrusions; terminal apophysis large and curved, well sclerotized with long protrusions, well fused to lamella characteristica; lamella characteristica with one pointed tip and one squared, rugose tip ( Fig. 303 ). Female : Total length 1.58; carapace length 0.67, width 0.51.