Bioacoustics of Artema kochi

Description Male (MNHN Ar 10169) MEASUREMENTS. Total body length 6.8, carapace width 3.5. Leg 1: 46.2 (12.1 + 1.6 + 13.4 + 16.2 + 2.9), tibia 2: 10.0, tibia 3: 7.6, tibia 4: 10.5; tibia 1 L/d: 34. Distance PME–PME 190 μm, diameter PME 190 μm, distance PME–ALE 90 μm, distance AME–AME 40 μm, diameter AME 180 μm. COLOR. Carapace ochre to light brown, with brown median band and narrow light brown margins; brown to light brown stripes radiate from median pit to margins; ocular area ochre to brown, clypeus with light brown band below AME, and dark brown rim ( Fig. 76 ); legs ochre to light brown, with reddish brown to ochre prolateral marks on femora proximally, with brown rings on femora subdistally, patellae + tibiae proximally, and tibiae subdistally, tips of femora and tibiae not whitish (probably an artifact, see variation below); sternum ochre to light brown with narrow brown margins; abdomen beige to light brown with pale yellow and dark dots forming indistinct stripes from dorsal to lateral side of abdomen with large marks dorsally. BODY. Ocular area slightly elevated; carapace with distinct median pit and distinctive posterior furrow; clypeus unmodified; sternum wider than long (2.4/1.7); chelicerae as in Figs 83–85 , with frontal row of 16–19 modified (cone-shaped) hairs on each side situated on proximally strongly projecting processes; with several cone-shaped, sclerotized processes situated frontally near median line (arrows in Figs 83, 85 ); without stridulatory ridges (as in Fig. 83 ); Abdomen globose and high; gonopore with four epiandrous spigots. PALPS. As in Figs 77–79 ; 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 ( Fig. 89 ), and distal dorsal notch on retrolateral margin; bulb with membranous embolus rising from base of process a; process a elongated, projecting towards retrolaterally with large subdistal hump; process b flattened, band-like, rectangular ( Fig. 81 ); processes c, d and e absent. 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 3 other males: 11.4, 13.7, 14.2; color pattern on abdomen varies from pale without any marks to light brown with dark and pale dots forming large dorsal marks and fine lateral stripes; leg color varies from light brown to ochre, in fresh specimen from Sudan tips of femora and tibiae whitish; elevated ocular area usually light brown; carapace pattern varies from narrow brown stripes to wide brown marks radiating from median pit to margin ( Fig. 76 , cf. Koch 1875 : fig. 1). Female In general similar to male; tibia 1 in 2 females : 5.6, 9.8; stridulatory files laterally on chelicerae present; anterior epigynal projections (AEP) sclerotized, elongated ( Fig. 86 ); epigynal plate sclerotized, wide rectangular (~3 × wider than long) projecting anteriorly between AEP, with median posterior margin gently protruding; some females with two dark dots at base of triangular anterior projection.