Bioacoustics of Agyneta girardi

Description: Male : Total length 1.71; carapace length 0.78, width 0.60. CEPHALOTHORAX: Carapace orange, shiny, finely reticulate; margin, radiating lines and pars cephalica suffused with gray; trident mark sometimes present. Clypeus height 2. Sternum strongly suffused with dark gray. Chelicerae orange, transversely suffused with gray, excavated; seta-tipped tubercles absent; promargin three teeth, one median tooth between margins, retromargin three denticles, both margins with projection near base of fang. Cheliceral stridulatory organ ~ 29 striae, well spaced throughout. ABDOMEN: Uniformly light to dark gray. LEGS: Light yellow; leg I total length: 3.22; leg III total length: 2.26; Tm I: 0.18, Tm IV: absent. GENITALIA: Palpal retrolateral tibial and dorsal tibial apophysis absent ( Fig. 459 ). Cymbium rounded; glabrous depression present ( Fig. 459 ); cymbial turbercles absent; prolateral notch absent ( Fig. 460 ). Paracymbium apical pocket short, anterior pocket short and curved, posterior pocket small, pointed ( Fig. 459 ). Embolus tip pointed; basally enlarged, rounded with one spike and small process; apico-ventrally with numerous spikes; Fickert’s gland situated medially; ventral lamella transparent, serrated; thumb large, reaching well beyond the embolus proper ( Fig. 461 ). Embolus proper set apically, on a short horizontal ridge, of equal part ( Fig. 461 ). Anterior terminal apophysis long with a few protrusions; posterior terminal apophysis tip twisted and striated; lamella characteristica long, spiky apically, wide basally with small basal triangular extension ( Fig. 462 ). Female : Total length 2.09; carapace length 0.81, width 0.60. CEPHALOTHORAX: Same as in male. Chelicerae promargin six teeth, retromargin with five denticles. Cheliceral stridulatory organ ~27 striae, well spaced. ABDOMEN: Same as male. LEGS: Same as male; palpal tarsal claw absent, palpal tibia and metatarsus suffused with dark gray; leg I total length: 2.92; leg III total length: 2.18; Tm I: 0.20, Tm IV: absent. GENITALIA: Epigynum with proximal part of scape narrow, enlarging apivally; epigynal slits small and triangular; pit hook depression wide and shallow ( Fig. 463 ); lateral lobes elongated ( Fig. 464 ); stretcher absent; pit small ( Fig. 465 ). Median part of scape extremely narrow, parallel; genital pores located in middle of lateral lobes ( Fig. 465 ). Internal genitalia with a large oval ventral receptacula ( Fig. 464 ).