Bioacoustics of Agyneta platnicki

Description: Male : Total length 1.72; carapace length 0.81, width 0.73. CEPHALOTHORAX: Carapace yellow, shiny, finely reticulate; margin suffused with gray. Sternum light yellow, lightly suffused with gray. Clypeus height 3. Chelicerae yellow, excavated; seta-tipped tubercles absent; promargin four teeth, retromargin two denticles and projection near base of fang. Cheliceral stridulatory organ visible ~27 striae, evenly spaced throughout. ABDOMEN: Off-white with black spots ( Fig. 416 ). LEGS: Missing. GENITALIA: Palpal tibia with elongated, smooth retrolateral tibial apophysis; dorsal tibial apophysis absent; two retrolateral trichobothria and a dorsal one ( Fig. 413 ). Cymbium with conical extension; dorsal cymbial tubercle small; ventral tubercle large and rugose; prolateral notch deep ( Fig. 412 ). Embolus tip bent; rugose ventrally; Fickert’s gland bulbous; ventral lamella absent; thumb extending beyond the embolus proper ( Fig. 414 ). Embolus proper set apically, small prong near base ( Fig. 414 ). Anterior terminal apophysis long with a few short protrusions; posterior terminal apophysis, large, well sclerotized with bifid tip with protrusions; lamella characteristica with large, triangular folded tip ( Fig. 415 ). Female : Total length 1.82; carapace length 0.72, width 0.58. CEPHALOTHORAX: Carapace yellow, shiny, finely reticulate margin suffused with gray. Sternum light yellow, lightly suffused with gray. Clypeus height 3. Chelicerae yellow; promargin four teeth, retromargin three denticles. Cheliceral stridulatory organ visible ~30 striae, evenly spaced throughout. ABDOMEN: Off-white with black spots ( Fig. 417 ). LEGS: Yellow; leg I total length: 4.13, leg III total length: 2.72; Tm I: 0.19, Tm IV: absent. GENITALIA: Epigynum with narrow proximal part of scape, sides parallel gradually enlarging apically; epigynal slits small and rounded; pit hook depression absent ( Fig. 418 ); lateral lobes short and wide; stretcher indistinguishable ( Fig. 419 ). Median part of scape narrow basally, larger apically; genital pores situated in the middle of median part of scape ( Fig. 420 ). Internal genitalia with elongated, ventral receptacula and an oval dorsal one ( Figs 419, 420 ).