Bioacoustics of Agyneta llanoensis

Description: Male : Total length 1.98; carapace length 0.87, width 0.73. MAP. 28. Localities of Agyenta llanoensis ( Gertsch & Davis 1936 ) . CEPHALOTHORAX: Carapace light yellow-orange, shiny, finely reticulate. Sternum light yellow-orange, margin a shade darker. Clypeus height 4. Chelicerae orange, not excavated; seta-tipped tubercles absent; promargin five teeth, retromargin four denticles, retromargin with triangular projection near base of fang. Cheliceral stridulatory organ ~55 strong striae, well spaced, getting closer basally. ABDOMEN: Uniformly pale, whithish. LEGS: Light yellow; leg I total length: 5.42; leg III total length: 2.49; Tm I: 0.26, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis large, pointed and smooth; dorsal tibial apophysis extending at a right angle from tibia, rugose; two retrolateral trichobothria and one dorsal ( Fig 425 ). Cymbium triangular; glabrous depression present ( Fig 425 ); dorsal cymbial tubercle, squared and rugose; ventral tubercle elongated, rounded and smooth; prolateral notch deep ( Fig. 426 ). Paracymbium apical pocket long, anterior pocket long and curved making a small cover, posterior pocket medium ( Fig. 425 ). Embolus tip wide, with retrolateral extension; basally with row of spines; ventrally with numerous small spines; Fickert’s gland elongated situated basally; ventral lamella reduced or absent; thumb going slightly over the embolus proper ( Fig. 427 ). Embolus proper set apically, ventral part wider, not serrated with associated large dentate prong ( Fig. 427 ). Anterior terminal apophysis wide tip with numerous protrusions; posterior terminal apophysis short with row of spines; lamella characteristica short and multipart ( Fig. 428 ). Female : Total length 2.11; carapace length 0.89, width 0.70. CEPHALOTHORAX: Same coloration as male. Chelicerae yellow; promargin five teeth, retromargin five denticles. Cheliceral stridulatory organ ~44 striae, well spaced getting closer basally. ABDOMEN: Same as male. LEGS: Same as male; palp tarsus normal, claw absent; leg I total length: 4.66; leg III total length: 3.28; Tm I: 0.22, Tm IV: absent. GENITALIA: Epigynum with extremely wide proximal part of scape; epigynal slits small and oval; pit hook depression wide ( Fig. 429 ); lateral lobes short; stretcher small; pit deep ( Fig. 431 ). Median part of scape narrow; genital pores situated at lateral lobes pockets ( Fig. 431 ). Internal genitalia with elongated, ventral receptacula and a small, oval dorsal one ( Figs 430, 431 ).