Orchestina MI

Izquierdo, Matías Andrés & Ramírez, Martín J., 2017, Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae), Bulletin of the American Museum of Natural History 2017 (410), pp. 1-1 : 1-

Orchestina MI 037

Figures 218 , 228A–C , 232C–E , map 27

MORPHOTYPE: Male from Brazil: Rio Grande do Sul, Potreiro Velho, São Francisco de Paula, -29.73333, -50.4, June 2002, Luis A. Bertoncello et al. leg., deposited in MCTP, PBI_OON 51097.

REMARKS: This male was found in the same vial with a female of O. sarava (MCTP 24652, PBI_OON 43375), but, given that other males and females were found in the same locality on the same date, the specimens were separated and treated as different species. In case of future matching, we have placed a label in both vials indicating the original location of such specimens.

DIAGNOSIS: Males can be distinguished by the shape of the bulb, with inconspicuous embolus and a very wide first section of the sperm duct, starting from fundus (figs. 228A– C, 232C–E).

DESCRIPTION: Habitus as in figure 218. Chelicerae anterior face with basal conical projections near base. Endites with serrula in single row, anteromedian tip unmodified.

GENITALIA: Embolus dark, short, base with serrated border when viewed from side (fig. 228A–C); sperm duct strongly coiled, very wide in first part of its course (asterisk on fig. 232C).

DISTRIBUTION: Only known from the morphotype locality in Rio Grande do Sul, Brazil (map 27).

OTHER MATERIAL EXAMINED: None.

Figures

FIGURE 218. Orchestina MI037, habitus. A. Dorsal. B. Lateral. C. Ventral. Scale bars: 0.2 mm. (PBI_OON 43375).

FIGURE 228. Palps of morphospecies of Orchestina. A–C. OMI037. D–F. OMI039. G–I. OMI040. A, D, G. Prolateral. B, E, H. Dorsal. E, F, I. Retrolateral. Scale bars: 0.2 mm. (PBI_OON 43375, 43359, 30290).

FIGURE 232. Morphospecies of Orchestina, drawings of male palps. A, B. OMI034. C–E. OMI037, asterisk on the wide first section of sperm duct. F, G. OMI035, right palp. A. Prolateral. B (detail), D, G. Dorsal. C, F. Retrolateral. Image C flopped for consistency. E. Scheme of sperm duct course. Scale bars: 0.1 mm. (PBI_OON 40476, 43375, 42162).