Bioacoustics of Artema doriae

Description Male (MNHN AR 10180) MEASUREMENTS. Total body length 8.5, carapace width 4.1. Leg 1: 60.8 (16.0 + 1.9 + 18.2 + 21.2 + 3.5), tibia 2: 14.2, tibia 3: 10.0, tibia 4: 13.8; tibia 1 L/d: 36. Distance PME–PME 220 μm, diameter PME 200 μm, distance PME–ALE 140 μm, distance AME–AME 50 μm, diameter AME 190 μm. COLOR. Carapace ochre with light brown median band; ocular area light brown, clypeus with subtle brown rim and light brown band below AME enlarged at base of clypeus to triangular shape (as in Fig. 90 ); legs ochre yellow to ochre without dark rings on femora subdistally but with light brown rings on patellae + tibiae proximally, and tibiae subdistally, tips of femora and tibiae not whitish; sternum ochre with narrow brown margins; abdomen beige with indistinct pale stripes from dorsal to posterior of abdomen with several marks dorsally. BODY. Ocular area slightly elevated; carapace with distinct posterior furrow and distinct median pit; clypeus unmodified; sternum wider than long (3.0/2.2); chelicerae, with frontal row of ~20–25 modified (cone-shaped) hairs on each side, situated on elevated process (see Figs 97–99 ); cheliceral proximal incline in lateral view with distinct small process above modified hairs (see Fig. 97 ); with stridulatory ridges laterally (as in Fig. 118 ); abdomen globose and high; gonopore with four epiandrous spigots. PALPS. Coxa unmodified, trochanter with short ventral projection, femur with distinct retrolateral process proximally, ventral membranous area proximally bordered on both sides by heavily sclerotized ridges, and small dorsal projection proximally; femur-patella hinges close together dorsally; patella very short; procursus with proximal dorsal process and weakly developed ventral pocket, and distal dorsal notch on prolateral sclerotized margin (as in Fig. 95 ); bulb with membranous embolus rising from base of processes a and b; process a with subdistal hump; process b narrow, elongated, and pointed; process c small, triangular (as in Fig. 95 ); process d is a distinct small ventral projection distally (as in Figs 94, 96 ). LEGS.Without spines;with long curved hairs, especially on tibiae and metatarsi; retrolateral trichobothrium on tibia 1 at 8%; prolateral trichobothrium present on all tibiae; pseudosegmentation not visible. Male (variation) Tibia 1 in 19 other males: 8.0–22.2 (mean 14.5); color pattern on abdomen varies from pale without any marks to beige with lateral stripes and large marks dorsally; leg color varies from light brown to ochre; ocular area usually light brown; carapace pattern varies from sub-marginal brown marks to pale carapace with median band only; clypeus sometimes without dark band; process c varies in length, sometimes curved and pointing towards prolateral; lateral stridulatory ridges usually present and easy to notice ( Fig. 118 ), sometimes invisible; cheliceral proximal incline (in lateral view) usually with ridge or small process above modified hairs, sometimes absent or indistinct ( Figs 97, 100–102 ). Female In general similar to male; tibia 1 in 20 females : 5.3–14.3 (mean 8.3); stridulatory files laterally on chelicerae more distinct than in males; epigynal plate trapezoidal, consisting of two sclerotized lateral areas that are wider posteriorly, gently swollen posteriorly, and depressed medially anteriorly, pale median area inflated posteriorly with dark median sclerite ⅓–⅔ the length of epigynal plate and not fused at posterior epigynal margin with lateral sclerotized plates, epigynal posterior margin usually straight, sometimes with small median indentation (i.e., Figs 111, 113–114 ); anterior epigynal projections oval, not prominent in lateral view. Intraspecific variation of epigynum as shown in Figs 103–114 .