Jacaena zhui, Zhang and Fu, 2011

Dankittipakul, Pakawin, Tavano, Maria & Singtripop, Tippawan, 2013, Revision of the spider genus Jacaena Thorell, 1897, with descriptions of four new species from Thailand (Araneae: Corinnidae), Journal of Natural History 47 (23), pp. 1539-1567 : 1556

Jacaena zhui (Zhang and Fu, 2011) comb. nov.

Sesieutes zhui Zhang and Fu, 2011: 71 , figs 1–15, description of ♂♀.

Diagnosis

Females of J. zhui comb. nov. can be distinguished from those of J. schwendingeri comb. nov. by their smaller copulatory orifices that are located more anteriorly, internal ducts that are simple, and the spermathecae that are robust. In J. schwendingeri comb. nov. the copulatory orifices are distinctly larger and medially situated on the epigynal plate ( Figure 7 A), the internal ducts are partially enlarged, and the anterior portion of the spermathecae is spherical ( Figure 8 F). Males differ by the apex of the conductor, which is blunt, whereas in J. schwendingeri comb. nov. the conductor is sharply pointed and more elongate ( Figures 4 A, 9 A).

Distribution

Yunnan Province, southern China.

Figures

Figure 4. Jacaena spp. Male palps, ventral (A, D, G). Ditto, prolateral (B, E, H). Ditto, retrolateral (C, F, I). Jacaena schwendingeri comb. nov., holotype (A – C); J. lunulata sp. nov., paratype (originally misidentified as Sesieutes schwendingeri) (D – F); J. mihun, holotype (G – I).

Figure 7. Jacaena spp. Epigynal region, ventral (A – F). Jacaena schwendingeri comb. nov., paratype (A); J. punctata sp. nov., paratype (B); J. lunulata sp. nov., paratype (C); J. mihun (D); J. angoonae sp. nov., holotype (E); J. peculiaris sp. nov., holotype (F).

Figure 8. Jacaena spp. Internal copulatory organ, dorsal (A – G). Jacaena mihun (A – D); J. angoonae sp. nov., holotype (E); J. schwendingeri comb. nov., paratype (F); J. lunulata sp. nov., paratype (G).