Bioacoustics of Agyneta delphina

Description: Male : Total length 1.39; carapace length 0.70, width 0.58. MAP. 34. Localities of Agyneta delphina n. sp. CEPHALOTHORAX: Carapace light orange, shiny, finely reticulate; suffused with dark gray along margin, radiating lines; trident mark present. Sternum orange-brown strongly suffused with dark gray. Clypeus height 2. Chelicerae light yellow-orange, with transverse suffused dark gray band, not excavated; seta-tipped tubercles absent; promargin five teeth, retromargin five denticles, no projection near base of fang. Cheliceral stridulatory organ ~54 striae, apical half widely spaced basal half very narrowly spaced. ABDOMEN: Dark gray with white apical hourglass-shaped mark ( Fig. 515 ). LEGS: Yellow; femurs, metatarsus I lightly suffused with gray, leg I total length: 3.13, leg III total length: 2.11, Tm I: 0.24, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis small, pointed; dorsal tibial apophysis rugose, lip-like; two trichobothria retrolaterally, one dorsally ( Fig. 511 ). Cymbium rounded; glabrous depression absent ( Fig. 511 ); cymbial tubercles absent; prolateral notch shallow ( Fig. 512 ). Paracymbium apical pocket very short, anterior pocket short and strongly curved making a medium cover, posterior pocket absent ( Fig. 511 ). Embolus tip pointed; basally with large flange; Fickert’s gland absent; ventral lamella absent; thumb short, reaching below the embolus proper ( Fig. 513 ). Embolus proper set apically, dorsal part tiny ( Fig. 513 ). Anterior terminal apophysis pointed, tip with long protrusions; posterior terminal apophysis small, twisted; lamella characteristica small, ending in a sharp point ( Fig. 514 ). Female : Total length 1.97; carapace length 0.76, width 0.65. CEPHALOTHORAX: Coloration as in male. Clypeus height 2. Chelicerae orange with dark transverse band; promargin four teeth, retromargin four denticles. Cheliceral stridulatory organ ~55 striae, apical half widely spaced, basal half very narrowly spaced. ABDOMEN: Patterned, dark gray with off-white apical mark band ( Fig. 516 ). LEGS: Same coloration as male; palpal tibia and tarsus segments dark, claw absent; leg I total length: 3.45, leg III total length: 2.28, Tm I: 0.26, Tm IV: absent. GENITALIA: Epigynum with proximal part of scape medium with parallel sides; epigynal slits oval; pit hook depression shallow ( Fig. 517 ); lateral lobes long and folded; stretcher medium; pit deep ( Fig. 518 ). Median part of scape short and wide; genital pores situated at the base of the lateral lobes ( Fig. 519 ). Internal genitalia with large rounded receptacula ( Figs 518, 519 ).