Bioacoustics of Hitobia poonaensis

Diagnosis Males of H. poonaensis comb. nov. can be distinguished from the males of all known congeners by a prominent apico-ventral process of tibia bearing tuft of setae and a broad tegular apophysis ( Figure 7 (a–b)). Females are closely related to the females of Hitobia monsta Yin, Peng, Gong & Kim, 1996 having similar shape of spermathecae and an inverted triangular epigynal hood, but can be distinguished from the latter by the position of the epigynal hood, which is medially placed in H. poonaensis , while it is placed near the posterior epigynal border in H. monsta (compare Figure 7 (d–e) with Song et al. 2004 , fig. 88A–B). Supplementary description Male ( allotype , Figure 6 (c–d)). Body length 6.13. Prosoma length 3.06, width 2.31. Opisthosoma length 3.07, width 2.27. Eye sizes and interdistances: ALE 0.13. AME 0.14. PLE 0.12.PME 0.11; AME–AME 0.06. AME–PME 0.16.PME–PLE 0.12. PME–PME 0.13. Length of chelicerae 0.80. Clypeus height at ALEs 0.10, at AMEs 0.12. Measurements of pedipalp and legs. Pedipalp (right) 2.47 [0.92, 0.38, 0.31, 0.86], I (right) 7.52 [2.30, 1.28, 1.64, 1.49, 0.81], II (right) 7.38 [2.21, 1.24, 1.67, 1.46, 0.80], III 7.15 [2.02, 1.08, 1.41, 1.69, 0.95], IV 8.91 [2.42, 1.22, 1.98, 2.32, 0.97]. Leg formula: 4123. Pedipalp ( Figure 7 (a–c)): tibia disto-ventrally with a short, broad process bearing tuft of setae ( Figure 7 (a)). Retrolateral tibial apophysis moderately long, flat, with inwardly directed pointed apex ( Figure 7 (a–c)). Conductor short, widely triangular,arising apically from tegulum ( Figure 7 (a–b)). Tegulum with a short, wide,pointed apico-prolateral membranous tegular process ( Figure 7 (a)). Tegular apophysis short, wide, apico-retrolateral in origin, lying close to the base of conductor and embolus ( Figure 7 (a–b)). Embolus short, spine-like, arising disto-prolaterally from tegulum ( Figure 7 (a)). Female ( holotype , Figure 6 (a–b)). Body length 9.45. Prosoma length 4.49, width 3.28. Opisthosoma length 4.96, width 2.56. Eye sizes and interdistances: ALE 0.16. AME 0.17. PLE 0.16. PME 0.15; AME–AME 0.12. AME–PME 0.23. PME–PLE 0.19. PME–PME 0.18. Length of chelicerae 1.22.Clypeus height at ALEs 0.14,at AMEs 0.19.Measurements of palp and legs.Palp (right) 3.54 [1.21, 0.66, 0.55, 1.12], I – [2.89, –, –, –, –], II 8.74 [2.58, 1.64, 1.82, 1.77, 0.93], III (right) 8.80 [2.46, 1.48,1.61, 2.10,1.15], IV (right) 10.94 [3.12,1.68,2.31,2.72,1.11]. Epigyne ( Figure 7 (d– e)): epigynal plate moderately sclerotised, with a wide antero-median hood, with crescent-like posterior epigynal margin ( Figure 7 (d)). Copulatory openings small, lying distantly from each other. Spermathecae large sac-like. ( Figure 7 (e)). Fertilisation ducts narrow, diverging.