Bioacoustics of Agyneta leucophora

Description: Male : Total length 1.47; carapace length 0.67, width 0.55. CEPHALOTHORAX: Carapace orange, shiny, finely reticulate; suffused with dark gray along margin, radiating lines; trident mark present. Sternum orange lightly suffused with dark gray. Clypeus height 1.5. Chelicerae light orange with transverse gray band, not excavated; seta-tipped tubercles absent; promargin six teeth, retromargin five denticles. Cheliceral stridulatory organ ~25 striae, well spaced throughout. ABDOMEN: Light gray with black apical mark or light gray with wide transverse dark band, followed by a white patch and apical dark mark ( Fig. 533 ). LEGS: Orange; leg I total length: 2.68; leg III total length: 1.90; Tm I: 0.25, Tm IV: absent. GENITALIA: Palpal retrolateral tibial apophysis hook-shaped; dorsal tibial apophysis absent; two retrolateral trichobothria and one dorsal ( Fig. 529 ). Cymbium rounded; glabrous depression absent; dorsal and ventral cymbial tubercles fused, squared and rugose; prolateral notch shallow ( Fig. 530 ). Paracymbium apical pocket medium, anterior pocket short and curved making a small cover, posterior pocket absent ( Fig. 529 ). Embolus tip pointed, wide; retro-ventrally with row of large spikes; basally with one large prong; Fickert’s gland absent; ventral lamella absent; thumb rounded, reaching the base of the embolus proper ( Fig. 531 ). Embolus proper set apically on a horizontal ridge, associated with embolus tip, part about equal ( Fig. 531 ). Anterior terminal apophysis rectangular, with a few protrusions; posterior terminal apophysis reduced to a sclerotized prong at base of the lamella characteristica; lamella characteristica, curving apically, two prongs medially ( Fig. 532 ). Female : Total length 1.41; carapace length 0.59, width 0.46. CEPHALOTHORAX: Same coloration as male. Chelicerae light orange; promargin six teeth, retromargin five denticles. Cheliceral stridulatory organ ~17 striae, well spaced throughout. ABDOMEN: Patterned, light gray with apical dark mark or light gray with wide off-white hourglass mark before black apex ( Fig. 534 ). LEGS: Same as male; palpal tarsus normal, tibia and metatarsus lightly suffused, claw absent; leg I total length: 2.15; leg III total length: 1.70; Tm I 0.28, Tm IV: absent. GENITALIA: Female epigynum with wide proximal part of scape, slightly enlarged medially; epigynal slits elongated and vertical; pit hook depression very shallow ( Fig. 535 ); lateral lobes very long, folded; stretcher small; pit deep ( Fig. 536 ). Median part of scape short and wrinkled; genital pores situated at base of lateral lobes pockets ( Fig. 537 ). Internal genitalia with large, oval receptacula obliquely positioned ( Figs 536, 537 ).