Orchestina chaparrita Izquierdo, 2017

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 chaparrita Izquierdo , new species

Figures 24 , 36A–C , 39B , 42A, B , 44B , map 2

TYPES: Male holotype and female paratype from Mexico: Coatzacoalcos (west side), Veracruz (18.15000°, -94.43333°), Aug. 11, 1966, J.W. Ivie, deposited in AMNH, PBI_OON 1085.

ETYMOLOGY: A noun in apposition; chaparrita is a word normally used in Mexico to kindly refer to a short-statured woman and is used in this case to illustrate the small size of these spiders in general.

DIAGNOSIS: Males resemble those of the other species from Panama by the general shape of the copulatory bulb but can be separated by subtle differences of embolus and the course of the sperm duct (fig. 42A, B), while females are distinguished by the shape of the anterior receptaculum with long lateral apodemes and the shape and location of the internal pockets (figs. 39B, 44B).

MALE (PBI_OON 1085): Total length 0.94. Habitus as in figure 24A–C. CEPHALOTHO- RAX: Carapace orange. Labium rectangular.

ABDOMEN: Pale white. GENITALIA: Embolus short, dark; sperm duct coiled, with several loops (figs. 36A–C, 42A–B).

FEMALE (PBI_OON 1085): Total length 1.37. Habitus as in figure 24D–F. GENITALIA: Internal pockets present, directed to median line; anterior receptaculum with long lateral apodemes; posterior receptaculum absent (figs. 39B, 44B).

DISTRIBUTION: Known only from the type locality in Mexico (Veracruz, map 2).

OTHER MATERIAL EXAMINED: None.

Figures

FIGURE 24. Orchestina chaparrita, habitus. A–C. Male holotype. D–F. Female paratype (PBI_OON 1085). A, D. Dorsal. B, E. Lateral. C, F. Ventral. Scale bars: A, C–F. 0.5 mm. B. 0.2 mm. (PBI_OON 1085).

FIGURE 36. Orchestina spp., palps of males. A–C. O . chaparrita, holotype. D–F. O . dentifera, specimen from Brazil. G–I. O . laselva, holotype. A, D, G. Prolateral. B, E, H. Dorsal. C, F, I. Retrolateral. Scale bars: 0.2 mm. (PBI_OON 1085, 42164, 27936).

FIGURE 39. Orchestina spp., female genitalia, ventral view. A. O. nahuatl. B. O . chaparrita. C. O . guatemala. D. O . griswoldi. E. O . chiriqui. F. O . truncata. Scale bars: 0.2 mm, except B, 0.1 mm. Image E by Luis Piacentini. (PBI_OON 1092, 1085, 38165, 2300, 42292, 27982).

FIGURE 42. Orchestina spp., drawings of male palps. A, B. O . chaparrita. C, D. O . truncata. E, F. O . pan. G, H. O . laselva. A, C, D, G. Prolateral. B, E, H. Dorsal. F. Retrolateral. Scale bars: 0.1 mm except D, 0.25 mm.

FIGURE 44. Orchestina spp., drawings of female genitalia, ventral view. A. O . nahuatl. B. O . chaparrita. C. O . dentifera. D. O . guatemala. E. O . truncata. F. O . chiriqui. G. O . labarquei. H. O . laselva. Scale bars: 0.1 mm. (PBI_OON 1092, 1085, 42163, 38165, 30900, 42562, 42305, 27943).