Bioacoustics of Agyneta sandia

Description: Male : Total length 1.90; carapace length 0.84, width 0.72. MAP. 19. Localities of Agyneta sandia n. sp. CEPHALOTHORAX: Carapace yellow, shiny, finely reticulate; margin, radiating lines suffused with dark gray. Sternum suffused with dark gray. Clypeus height 2. Chelicerae yellow, excavated; ~ 11 seta-tipped tubercles; promargin two teeth, retromargin three tiny denticles; both margins with rounded projection at base of fang, smaller on promargin. Cheliceral stridulatory organ ~ 58 striae, well spaced slowly getting close together basally. ABDOMEN: Oval, uniformly light to dark gray. LEGS: Yellow; leg I total length: 3.63; leg III total length: 2.47; Tm I: 0.20, Tm IV absent. GENITALIA: Palpal retrolateral tibial apophysis curved, smooth; dorsal tibial apophysis absent; two retrolateral, one dorsal trichobothria ( Fig. 283 ). Cymbium triangular; glabrous depression present ( Fig. 283 ); dorsal cymbial turbercle sharp and rugose; ventral cymbial tubercle elongated, pointed and smooth; prolateral notch shallow ( Fig. 284 ). Paracymbium apical pocket medium, anterior pocket short and curved, posterior pocket angled ( Fig. 283 ). Embolus tip pointed and thin; small spines apically; basally with two spikes; Fickert’s gland basal, slightly enlarged; ventral lamella slender and pointed; thumb short, reaching below the embolus proper ( Fig. 285 ). Embolus proper set apically, of equal part ( Fig. 285 ). Anterior terminal apophysis long, narrow with thin long protrusions, no extra process; posterior terminal apophysis with two sharp pointed tip; lamella characteristica long, ending in two large well sclerotized point, with a transparent lamella in between ( Fig. 286 ). Female : Total length 1.99; carapace length 0.75, width 0.59. CEPHALOTHORAX: Coloration as in male. Chelicerae promargin five teeth, retromargin four denticles. Cheliceral stridulatory organ ~ 51 striae, narrowly spaced. ABDOMEN: Oval, uniformly light to dark gray. LEGS: Coloration as male; palpal tarsal claw absent; leg I total length: 3.00; leg III total length: 2.13; Tm I: 0.22, Tm IV: absent. GENITALIA: Epigynum with proximal part of scape narrow basally, enlarging (2.5x) and spatula-shaped; epigynal slits large, not reaching the anterior part of epigynum; pit hook depression absent ( Fig. 287 ); lateral lobes long and folded; stretcher minuscule; pit deep ( Fig. 288 ). Median part of scape narrow, short, wrinkled; genital pores situated at base of lateral lobes pockets ( Fig. 289 ). Internal genitalia with an oval ventral receptacula and an elongated horizontally positioned dorsal one ( Figs 288, 289 ).