Bioacoustics of Artema magna

Description Male ( Pakistan : Quetta; assigned tentatively) MEASUREMENTS. Total body length 9.3, carapace width 4.3. Leg 1: 54.8 (14.0 + 1.8 + 15.8 + 20.3 + 2.9), tibia 2: 11.8, tibia 3: 9.0, tibia 4: 12.0; tibia 1 L/d: 39. Distance PME–PME 210 μm, diameter PME 230 μm, distance PME–ALE 100 μm, distance AME–AME 30 μm, diameter AME 210 μm. COLOR. Carapace light ochre to beige with small brown spots laterally forming few small lines near median pit, with light brown median band that splits at posterior margin of ocular area to brown lines following base of ocular area and light brown band medially on ocular area; clypeus with wide ochre brown band below AME that fades towards dark brown edge of clypeus (as in Fig. 155 ); legs ochre to light brown with dark rings on femora subdistally, patellae + tibiae proximally, and tibiae subdistally, tips of femora and tibiae pale ochre; sternum ochre, with brown margins and median light brown dots forming cross-like pattern; abdomen beige without pattern. BODY. Ocular area slightly elevated; carapace with median pit and distinct posterior furrow; clypeus unmodified; sternum wider than long (3.0/2.1); chelicerae as in Figs 162–164 , with frontal row of ~17 modified (cone-shaped) hairs on each side with median projection ending with two modified hairs that appear isolated and not linked to main modified hairs ridge; without stridulatory ridges; Abdomen globose and high; gonopore with four epiandrous spigots. PALPS. As in Figs 156–158 ; coxa unmodified; trochanter with short ventral projection; femur with short, somewhat pointed retrolateral process proximally; ventral large membranous area proximally bordered on both sides by sclerotized ridges; femur-patella hinges close together dorsally; patella very short; procursus with proximal dorsal process, with weakly developed ventral pocket, with three weak distal dorsal notches on prolateral margin ( Fig. 160 ); bulb with membranous embolus rising from base of processes a and b, process a slightly spiraling with pointed tip; process b elongated and pointed, process c robust, strongly curved towards prolateral ( Fig. 160 ), process d low rounded projection on ventral side of bulb ( Fig. 159 ). LEGS.Without spines;with long curved hairs, especially on tibiae and metatarsi; retrolateral trichobothrium on tibia 1 at 10%; prolateral trichobothrium present on all tibiae; pseudosegmentation not visible. Female ( holotype ) In general similar to male; tibia 1: 17.8; abdomen beige with lateral gray stripes with large marks dorsally ( Figs 165–166 ); stridulatory files laterally on chelicerae present; epigynum ~2.5 × wider than long, median posterior margin protruding ( Figs 168–169 ); epigynal plate consisting of two swollen sclerotized lateral areas, pale median area, and dark median anterior sclerite; pair of projections anterior to epigynum (AEP) oval, not prominent; sternum with light brown dots forming cross-like pattern more distinct than in male. Natural history The female holotype was collected in a cave. The only known male was collected inside a house, together with a male of a different, unnamed species (see Artema sp. c below).