Bioacoustics of Priscula bonita

Description Male ( holotype ) MEASUREMENTS . Total body length 5.2, carapace width 2.1. Distance PME–PME 270 µm; diameter PME 170 µm; distance PME–ALE 180 µm; distance AME–AME 45 µm; diameter AME 45 µm. ALE and PLE larger than PME (diameters 250 µm). Leg 1: 46.1 (11.7 +0.9+11.5 + 18.7 +3.3), tibia 2: 8.1, tibia 3: 5.7, tibia 4: 7.3; tibia 1 L/d: 55. COLOR (in ethanol). Carapace pale ochre-yellow, with large brown median mark and three pairs of lateral marks, ocular area also brown, clypeus with large brown band narrowing towards chelicerae; sternum light brown with thin darker margins; legs pale ochre, with 3–4 variably distinct dark rings on each femur and tibia; abdomen dorsally and laterally densely covered with black marks, with some small white marks in-between, ventrally with large brown mark in front of gonopore and light brown sclerite in front of spinnerets. BODY . Habitus as in Fig. 6C . Ocular area raised, without hump on posterior side, without comb of stronger hairs at median side of each ocular triad. Deep thoracic groove. Clypeus unmodified except sclerotized rim. Sternum wider than long (1.45/1.00), unmodified. Abdomen slightly higher than long, dorso-posteriorly pointed. CHELICERAE . As in Fig. 35A–B , with short entapophyses, with pair of very small frontal apophyses near fang joints, whitish lateral area slightly protruding; without stridulatory ridges. PALPS . As in Fig. 33A–C ; coxa unmodified, trochanter slightly protruding ventrally, femur very large, proximally with distinct retrolateral process and prolateral-ventral ridge, distal ventral rim not protruding; patella ventrally reduced to strongly sclerotized narrow rim; tibia small relative to femur; procursus ( Fig. 34A–C ) slender, proximally with exposed tarsal organ (arrow in Fig. 42F ), distally with prolateral-dorsal band of whitish membranous and fringed elements, with strongly sclerotized distal sclerite apparently moveable against proximal part of procursus; genital bulb ( Fig. 34D–F ) with small proximal sclerite connecting to tarsus, with large whitish area on retrolateral-ventral side, strong and slightly spiraling main bulbal process with subdistal sperm duct opening (arrow in Fig. 42G ) and pointed tip. LEGS . Without spines; with curved hairs on all tibiae and metatarsi, few weakly curved hairs also on femora; with few short vertical hairs; retrolateral trichobothrium of tibia 1 at 7%; prolateral trichobothrium present on all leg tibiae; tarsi without regular pseudosegmentation but rather with many indistinct platelets. Male (variation) Tibia 1 in seven males (incl. holotype ): 9.9–12.4 (mean 11.4). Lateral marks on carapace variably separated or connected with each other at carapace margin; sternum sometimes with light marks. Males from southern Napo and Pastaza are very similar but have slightly smaller palps and the distal sclerite on the procursus is slightly narrower in retrolateral view. This is also reflected in the relatively large CO1 distances between the sequenced specimen from Pastaza and the sequenced specimens from Sucumbíos and central to northern Napo (8.1–8.8%). Distances among the Sucumbíos and central to northern Napo specimens are 5.3% or lower. Female In general similar to male ( Fig. 6D ) but clypeus rim not sclerotized but with median ochre mark. Ventral sclerite in front of spinnerets variably divided medially or undivided. Tibia 1 in 13 females : 6.1– 7.7 (mean 7.2). ALS with one strongly widened spigot, one pointed spigot, and one large and four small cylindrical spigots; with distinctively sculptured area medially in front of ALS (similar to Fig. 41G ). Epigynum ( Fig. 36A–B ) main anterior plate trapezoidal, slightly protruding, posteriorly medially slightly indented; posterior epigynal plate reduced to pair of small lateral sclerites. Females from Pastaza with similar anterior plate but less reduced posterior plate ( Fig. 36E–F ). Internal genitalia ( Figs 35C , 36C–D ) with pair of large pore plates in almost parallel position, narrowing posteriorly.