Bioacoustics of Agyneta issaqueena

Description: Male : Total length 1.74; carapace length 0.78, width 0.53. CEPHALOTHORAX: Carapace light orange-brown, shiny, finely reticulate; suffused with dark gray along margin, radiating lines; trident mark present. Sternum orange-brown suffused with dark gray. Clypeus height 2. Chelicerae light yellow-orange, excavated; ~ 10 seta-tipped tubercles; promargin four teeth, retromargin three denticles, promargin without, retromargin with rounded projection near base of fang. Cheliceral stridulatory organ ~49 striae, narrowly spaced throughout. ABDOMEN: Cylindrical, light gray apically, basally darker ( Fig. 561 ). LEGS: Yellow, basal part of femurs I-IV and distal half of tibia I dark gray; leg I total length: 2.33; leg III total length: 1.65; Tm I: 0.22, Tm IV: absent. GENITALIA: Retrolateral tibial apophysis pointed, with a round rugose bulge; dorsal tibial apophysis absent; tibia bearing large protuberance dorso-basally; one retrolateral trichobothria and one dorsal ( Fig. 557 ). Cymbium pointed; glabrous depression present ( Fig. 557 ); dorsal cymbial tubercle sharply pointed; ventral tubercle pointed, both slightly rugose; prolateral notch absent ( Fig. 558 ). Paracymbium apical pocket short, anterior pocket short and strongly curved making a small cover, posterior pocket absent ( Fig. 557 ). Embolus tip rounded; basally with large flange and prong; Fickert’s gland situated basally, slightly enlarged; ventral lamella narrow, pointed and serrated; thumb short, reaching well below the embolus proper ( Fig. 559 ). Embolus proper set apically on a vertical ridge with large associated prong, dorsal part larger ( Fig. 559 ) Anterior terminal apophysis narrow, tip with no protrusions; posterior terminal apophysis small, curved, excavated; lamella characteristica large, rugose ending in a sharp hook-shaped prong ( Fig. 560 ). Female : Unknown.