Orchestina erwini 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 erwini Izquierdo , new species

Figures 65A–C , 66–70 , 92D–F , 100A, B , map 10

TYPES: Male holotype from Ecuador: Orellana, 1 km S Onkone Gare Camp, Reserva Etnica Waorani , 216 m, -0.65715°, -76.45300°, Oct. 03, 1996, T. Erwin et al., deposited in USNM, PBI_ OON 37598 ; same data, Oct. 08, 1995, T. Erwin et al., 2 male paratypes deposited in USNM, PBI_OON 37603 .

ETYMOLOGY: The specific name is a patronym in honor of Terry Erwin, collector of the type material and most of the known species from Ecuador and Peru.

DIAGNOSIS: Males can be distinguished by the shape of the copulatory bulb, which in dorsal view has a short embolus with widened base (figs. 70B, C, 92D–F, 100A, B).

MALE (PBI_OON 37598): Total length 1.02. Habitus as in figure 65A. CEPHALOTHORAX: Carapace anteriorly narrowed to 0.49× its maximum width or less, textured fingerprint (fig. 66A–D). Clypeus as in figure 66A, E. Eyes as in figure 66C, E. Sternum as long as wide, texture fingerprint (figs. 65B, 67C). Chelicerae anterior face with basal blunt projections (fig. 67A, B, D). Labium rectangular (fig. 67E). Endites with one anterior toothlike projection (fig. 67D, E).

ABDOMEN: Pale orange. GENITALIA: Embolus short; sperm duct coiled with several loops (figs. 70B, C, 92D–F, 100A, B).

FEMALE: Unknown; females of morphospecies MI020–MI027, MI029, MI036, and MI038 from the same area are candidates to match this male.

DISTRIBUTION: Known from Orellana province, Ecuador (map 10).

OTHER MATERIAL EXAMINED: ECUADOR: Orellana: 1 km S Onkone Gare Camp, Reserva Etnica Waorani , 216 m, -0.65715°, -76.45300°, Oct. 08, 1995, T. Erwin et al., 33 ( USNM, PBI _OON 15100) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 29994) ; same data, Feb. 05, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 29999) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30009) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30025) ; same data, Feb. 05, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30030) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 30047) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30051) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30078) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 30091) ; same data, Aug. 04, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 30099) ; same data, Feb. 07, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 30103) ; same data, Feb. 08, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 30113) ; same data, June 22, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 30117) ; same data, Aug. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30125) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30132) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30165) ; same data, Oct. 07, 1995, T. Erwin et al., 33 ( USNM, PBI _OON 30176) ; same data, Oct. 06, 1994, T. Erwin et al., 23 ( USNM, PBI _OON 30197) ; same data, Aug. 04, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 30202) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _ OON 30223) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30226) ; same data, July 06, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 30227) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30234) ; same data, Oct. 06, 1994, T. Erwin et al., 23 ( USNM, PBI _OON 30245) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30250) ; same data, Feb. 04, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 30262) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30300) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 30333) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30334) ; same data, June 22, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30341) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30344) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30354) ; same data, July 06, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 30355) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 30361) ; same data, Oct. 04, 1995, T. Erwin et al., 43 ( USNM, PBI _OON 30413) ; same data, Oct. 04, 1995, T. Erwin et al., 33 ( USNM, PBI _ OON 30417) ; same data, Oct. 06, 1994, T. Erwin et al., 23 ( USNM, PBI _OON 30422) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30426) ; same data, Feb. 07, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30429) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30436) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 30441) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30451) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30455) ; same data, Feb. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 30466) ; same data, Feb. 04, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 30477) ; same data, Oct. 04, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30507) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30527) ; same data, Oct. 06, 1994, T. Erwin et al., 23 ( USNM, PBI _OON 30536) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30542) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 30543) ; same data, Feb. 07, 1996, T. Erwin et al., 43 ( USNM, PBI _OON 30652) ; same data, Oct. 06, 1994, T. Erwin et al., 23 ( USNM, PBI _OON 30694) ; same data, Oct. 07, 1995, T. Erwin et al., 33 ( USNM, PBI _OON 30710) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30728) ; same data, Oct. 07, 1995, T. Erwin et al., 23 ( USNM, PBI _ OON 30732) ; same data, Oct. 06, 1994, T. Erwin et al., 83 ( USNM, PBI _OON 30739) ; same data, July 06, 1995, T. Erwin et al., 43 ( MACN 31457 , PBI _OON 30741) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30773) ; same data, Feb. 07, 1996, T. Erwin et al., 53 ( USNM, PBI _OON 30803) ; same data, Oct. 06, 1994, T. Erwin et al., 33 ( USNM, PBI _OON 30819) ; same data, Feb. 07, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 30890) ; same data, Oct. 06, 1994, T. Erwin et al., 33 ( USNM, PBI _OON 30895) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _ OON 30903) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 30906) ; same data, June 21, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 30912) ; same data, Oct. 08, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 30915) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 30922) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37558) ; same data, Feb. 07, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37559) ; same data, Feb. 08, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37560) ; same data, Oct. 02, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37561) ; same data, Feb. 07, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 37562) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37563) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 37564) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37565) ; same data, Feb. 05, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37566) ; same data, June 21, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37567) ; same data, June 26, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37568) ; same data, Feb. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37569) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37571) ; same data, Feb. 13, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37572) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37573) ; same data, Oct. 04, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 37574) ; same data, Oct. 04, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37575) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _ OON 37576) ; same data, Oct. 08, 1995, T. Erwin et al., 33 ( USNM, PBI _OON 37577) ; same data, June 22, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37578) ; same data, Oct. 07, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 37579) ; same data, Feb. 08, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37580) ; same data, Feb. 07, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37581) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37582) ; same data, Feb. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37583) ; same data, Oct. 03, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37584) ; same data, Oct. 01, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37585) ; same data, Feb. 07, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37586) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37587) ; same data, Oct. 08, 1995, T. Erwin et al., 23 ( USNM, PBI _OON 37588) ; same data, June 22, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37589) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 37590) ; same data, June 22, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 37591) ; same data, Oct. 05, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37592) ; same data, Feb. 07, 1996, T. Erwin et al., 53 ( MACN 31455 , PBI _OON 37593) ; same data, Oct. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37594) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37595) ; same data, Feb. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37596) ; same data, Oct. 03, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37597) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 37599) ; same data, Feb. 07, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37600) ; same data, Oct. 04, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 37601) ; same data, July 06, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37602) ; same data, June 22, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37604) ; same data, Feb. 07, 1996, T. Erwin et al., 33 ( MACN 31456 , PBI _OON 37605) ; same data, Oct. 04, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37606) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37607) ; same data, Oct. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 37608) ; same data, Feb. 04, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37609) ; same data, Oct. 02, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37610) ; same data, Oct. 07, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 37611) ; same data, Feb. 08, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37612) ; same data, Oct. 06, 1994, T. Erwin et al., 13 ( USNM, PBI _OON 37613) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37614) ; same data, June 21, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 37615) ; same data, June 26, 1996, T. Erwin et al., 23 ( USNM, PBI _ OON 37616) ; same data, Oct. 02, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 37617) ; same data, June 26, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 43264) ; same data, Oct. 08, 1995, T. Erwin et al., 13 ( USNM, PBI _OON 43268) ; same data, Oct. 06, 1996, T. Erwin et al., 13 ( USNM, PBI _OON 43271) ; same data, Feb. 07, 1996, T. Erwin et al., 23 ( USNM, PBI _OON 43277) ; same data, Feb. 04, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 43296) ; same data, June 22, 1996, T. Erwin et al., 33 ( USNM, PBI _OON 43297) ; same data, June 25, 1996, T. Erwin et al., 13 ( USNM, PBI _ OON 30206) .

Figures

FIGURE 65. Orchestina spp., males. A–B. habitus. C–G. Cephalothorax. A–C. O . erwini. D–G. O . shuar. A, E. Dorsal. B, D. Ventral. C, G. Lateral. F. Anterior. Arrows point to the prolateral projections on chelicerae. Scale bars: 0.2 mm. (PBI_OON 37598, 37610, 37650).

FIGURE 66. Orchestina erwini, SEM of male cephalothorax. A. Lateral view. B. Anterolateral view. C. Eyes, dorsal view. D. Carapace texture. E. Eyes and chelicerae, anterior view. Scale bars: A, B, E. 200 μm. C. 100 μm. D. 10 μm. (PBI_OON 37574).

FIGURE 67. Orchestina erwini, SEM of male cephalothorax structures. A. Left chelicerae, anterior view. B. Same, promargin. C. Sternum. D. Detail of right endite; arrow points to a small projection. E. Labium and endites. Scale bars: A, D, E. 100 μm. B. 50 μm. C. 200 μm. (PBI_OON 37577, 37574).

FIGURE 68. Orchestina erwini, SEM of male leg and palp structures. A. Right tarsal organ I. B. Same, leg II. C. Same, leg III. D. Same, leg IV. E. Same, cymbium. F. Modified setae of the apical region of right metatarsus I, prolateral view. G. Same, right leg II. H. Tarsus-metatarsus joint of right leg IV, prolateral view. I. Trichobothrial socket of right leg II. J. Same, right leg III. K. Right claws of leg I, retrolateral view. Scale bars: A, B, E, I. 5 μm. C, D, J. 10 μm. F, G, H, K. 20 μm. (PBI_OON 37574).

FIGURE 69. Orchestina erwini, SEM of male abdomen structures. A. Spinnerets, ventral-posterior view. B. Pedicel region showing the ring of needlelike setae. C. PLS. D. ALS. E. PMS. Abbreviations: ALS, anterior lateral spinneret; AT, anal tubercle; PMS, posterior median spinneret; PLS, posterior lateral spinneret. Scale bars: A. 100 μm. B. 50 μm. C. 5 μm. D, E. 10 μm. (PBI_OON 37574).

FIGURE 70. Orchestina erwini, SEM of male right leg I and palp. A. Modified setae of metatarsus I. B. Palp, retrolateral view. C. Same, dorsal view. D. Detail of embolus. Scale bars: A. 20 μm. B, C. 100 μm. D. 10 μm. (PBI_OON 37574).

FIGURE 92. Orchestina spp., palps of males. A–C. O. goblin. D–F. O . erwini. A, D. Prolateral. B, E. Dorsal. C, F. Retrolateral. Scale bars: 0.2 mm. (PBI_OON 37671, 37598).

FIGURE 100. Orchestina spp., drawings of male palps. A, B. O . erwini. C–E. O. ecuatoriensis. F, G. O. sotoi. H, I. O. magna. J–L. O . shuar, right palp. M, N. O . waorani. A, F, H, M. Prolateral. J, L. Retrolateral. B, E, G, I, K, N. Dorsal. D. Scheme of sperm duct course. Images J and K have been flopped for consistency. Scale bars: 0.1 mm, except J, 0.25 mm. (PBI_OON 37574, 30516, 42145, 37646, 37650, 30217, 31114).