Bioacoustics of Hahnia submaginii

Diagnosis. Females of the new species similar to those of H. maginii Brignoli, 1977 in having an epigynal atrium, spherical spermathecae and sub-spermathecae and relatively short copulatory ducts, but differ from the latter by the large epigynal atrium ( Figs 18 A, 18C, 18E, 20E), the small distance between anterior atrial margin and the anterior margin of copulatory ducts ( Figs 18 A, 18C, 18E, 20E) and the relatively thin copulatory ducts ( Figs 18 B, 18D, 18F, 20F). The new species is also similar to H. flagellifera Zhu, Chen & Sha, 1989 ( Figs 15–17 ), but can be distinguished by the bifurcate palpal patellar apophysis ( Figs 17 A–C, 19E–G), the distinct margin of epigynal copulatory openings ( Figs 18 A, 18C, 18E, 20E) and the procurved anterior margin of atrium in dorsal view ( Figs 18 B, 18D, 18F, 20F). Descripton. Male. Total length 1.90 – 2.50. Holotype ( Figs 19 A–D): Total length 2.45. Prosoma 1.28 long, 0.99 wide; opisthosoma 1.29 long, 0.89 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.07, PLE 0.07; AME–AME 0.04, AME–ALE 0.03, PME–PME 0.07, PME–PLE 0.06, ALE–PLE 0.02. MOA 0.19 long, front width 0.15, back width 0.21. Clypeus height 0.13. Chelicerae with distinct lateral condyle, stridulatory files laterally, 3 or 4 promarginal and 5 or 6 retromarginal teeth. Leg measurements: I 4.19 (1.23, 1.44, 0.93, 0.59); II 3.82 (1.10, 1.30, 0.88, 0.54); III 3.16 (0.91, 1.00, 0.78, 0.47); IV 3.83 (1.09, 1.25, 0.94, 0.55). Leg formula: 1423. Opisthosoma greyish, with 3 chevron-like markings dorsally. Spiracle located centrally. Male palpal patella with a bifurcate apophysis retrolaterally. One part pointing proximally, hook-like and the other pointing distally. RTA long and curved dorsally. Embolus originating retro-basally and curved around tegulum. Median apophysis membranous. Cymbial furrow deep, which length about half of cymbial length ( Figs 17 A– C, 19E–G). Female. Total length 2.30 – 2.80. One female paratype ( Figs 20 A–D): Total length 2.50. Prosoma 1.05 long, 0.75 wide; opisthosoma 1.55 long, 1.25 wide. Eye sizes and interdistances: AME 0.05, ALE 0.08, PME 0.08, PLE 0.08; AME–AME 0.03, AME–ALE 0.02, PME–PME 0.05, PME–PLE 0.05, ALE–PLE 0.01. Clypeus height 0.08. Leg measurements: I 2.80 (0.85, 0.95, 0.60, 0.40); II 2.55 (0.75, 0.85, 0.55, 0.40); III 2.25 (0.70, 0.75, 0.55, 0.35); IV 3.00 (0.90, 1.00, 0.70, 0.40). Leg formula: 4123. Other characters as in male. Epigynal atrium large, with distinct anterior margin. Copulatory openings located in atrium, with visible anterior margin, close to the anterior margin of atrium. Sub-spermathecae of similar size as spermathecae. Spermathecae located posteriorly, near the big atrium laterally. Fertilization ducts located posterior to spermathecae ( Figs 18 A–F, 20E–F).