Bioacoustics of Afroneta sarahae

Description Male (holotype, ZMUN 24056) SIZE. Total length 1.88. Cephalothorax 1.06 long, 0.76 wide. Sternum 0.59 long (0.54 without labium), 0.53 wide. Abdomen 0.91 long, 0.72 wide. AME diameter 0.04. Femur I 0.79 long, 0.75 times as long as cephalothorax. COLOUR (preserved specimens, Fig. 11D, F ). Cephalothorax and chelicerae brownish, sternum darker and with blackish-grey margin. Legs and pedipalps yellowish white, without annulations. Black rings around eyes. Abdomen dark grey, with white markings. Figure 11D–F illustrates recently collected material (2009), stored in 96% ethanol. The colour is probably close to the colour of the live animals. BODY. Cephalothorax with short pale setae in the midline. No fovea ( Fig. 11F ). Ocular area without setae between eyes. Clypeus height 4 times AME diameter. Subocular sulci present below ALE, clearly demarcated, longer than wide and narrow ( Fig. 11D ). Cephalothorax more elongated and narrower ( Fig. 11E–F ) as compared to Afroneta serrata sp. nov. ( Fig. 11B–C ). CHELICERAE. With 3 large widely spaced prolateral teeth ( Fig. 11D ). Without stridulating file. Three small closely spaced retrolateral denticles, positioned between the two first prolateral teeth. LEGS. All femora with short thin setae dorsally and ventrally. Ventral setae shorter than diameter of femora. Leg formula 1243. Trichobothrium metatarsus I = 0.37 (0.41 on other male specimen in vial). No tibial spines. PEDIPALP ( Figs 12A–D , 13A–F ). Patella with long strong macrosetae ( Fig. 12A ). Tibia with two retrolateral and one prolateral trichobothrium ( Fig. 12D ). Cymbium with two prolateral macrosetae ( Fig. 13A ). Paracymbium J-shaped, with unusual distal serrations on ventral margin ( Fig. 13A–F ). It holds two basal setae ( Fig. 13A ) and its distal part is well set off from the cymbium in dorsal view ( Fig. 12D ). Suprategulum narrow and triangular. Tegular mynoglenine process short and roundish ( Figs 12A , 13A ), smaller than in Afroneta serrata sp. nov. ( Figs 9A , 10A ). Radical division small restricted to distal half of alveolus ( Fig. 13F ). Radix drop-like. Embolus with broad base, robust and almost straight and tapering towards the tip ( Figs 12C , 13C ). Embolic membrane exceeding the embolus and the alveolus only slightly ( Fig. 13F ), less than in Afroneta serrata sp. nov. Female (allotype, ZMUN 24056) SIZE. Total length 2.41 (abdomen strongly bent downwards so total length difficult to measure). Cephalothorax 1.44 long, 0.96 wide. Sternum 0.79 long (0.71 without labium), 0.63 wide. Abdomen 1.32 long, 0.91 wide. AME diameter 0.06. Femur I 1.00 long, 0.71 times as long as cephalothorax. COLOUR (preserved specimen, Fig. 11E ). As holotype . BODY. Sternum shield–shaped. Clypeus height 3.5 times AME diameter. CHELICERAE. With 3 large widely spaced prolateral teeth. Retrolateral denticles not visible. Chelicerae without stridulating file. LEGS. Spination of legs like male. Leg formula 1243. Trichobothrium metatarsus I = 0.47. EPIGYNUM AND VULVA ( Figs 12E–H , 13G–H ). The epigyne has a dorsal plate scape that is moderately developed and neither extends much ventrally nor posteriorly ( Fig. 12E–F ). The copulatory ducts expand anteriorly as far as the receptacula and are separated from each other by less than their diameter ( Fig. 12G–H ). The receptacula are round.