Bioacoustics of Panjange casaroro

Description Male ( holotype ) MEASUREMENTS. Total body length 4.8, carapace width 1.0. Leg 1: 39.2 (9.2 + 0.5 + 9.4 + 18.9 + 1.2), tibia 2: 5.6, tibia 3: 3.2, tibia 4: 4.9; tibia 1 L/d: 106. Distance PME–PME 420 µm, diameter PME 105 µm, distance PME–ALE ~30 µm; AME absent. COLOR. Carapace and clypeus pale ochre to whitish, only base of eye stalks dark; sternum whitish; legs ochre-yellow with dark brown patellae and tibia-metatarsus joints; abdomen pale gray, with black marks dorsally, monochromous ventrally. BODY. Habitus as in Figs 6–7 ; ocular area raised, triads on long stalks with further distal processes whose contiguous tips seem to form a functional unit ( Fig. 28 ); with small process between eye stalks; carapace without median furrow; clypeus unmodiFed; sternum wider than long (0.65/0.55), unmodiFed. CHELICERAE. As in Fig. 28 , with pair of simple, weakly sclerotized lateral processes, without modiFed hairs; without stridulatory ridges. PALPS. As in Figs 24–27 ; proximal segments symmetric in shape but slightly larger on left side (e.g., length and diameter of right tibia about 90–95% of left tibia); coxa with strong ventro-distal rim but otherwise unmodiFed; trochanter with long weakly sclerotized retrolateral process directed toward dorsal; femur with weakly sclerotized Fnger-shaped process retrolatero-ventrally and more heavily sclerotized apophysis prolatero-dorsally; tibia with retrolateral trichobothrium in rather proximal position; tarsus with long whitish elongation, distally more strongly widened (club-shaped) in left palp; procursi of left and right palps strongly different, in each case with ventral process arising from proximal part (simple in right palp; biFd in left palp); distal part of procursus clearly hinged in left palp, not hinged in right palp; bulb much smaller in right palp, long processes extending in opposite directions (dorsal embolus; ventral appendix) almost symmetric (slightly longer in left palp). LEGS. Without spines and curved hairs; few vertical hairs; retrolateral trichobothrium on tibia 1 at 3%; prolateral trichobothrium absent on tibia 1, present on other tibiae; tarsus 1 with> 20 pseudosegments, only distally fairly distinct. Male (variation) Tibia 1 in other male: 9.5 (missing in third male). Female In general similar to male but eye triads on low humps and much closer together (distance PME–PME 265 µm); with dark mark in place of AME. Tibia 1 in 4 females : 6.7, 7.0, 7.1, 7.4. Epigynum mostly weakly sclerotized, with apparently slightly asymmetric internal structures visible through cuticle; distinctive scape with small median process at tip and two long extensible projections curved toward dorsal ( Figs 29 , 33, 34 ); internal genitalia as in Fig. 30 . Natural history The spiders were found on the undersides of large leaves about 50–100 cm above the ground.