Orchestina quasimodo 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 quasimodo Izquierdo , new species

Figures 6–9 , 16A–C , 18C , 19C , 20G, H , 21C, G, H , map 1

TYPES: Male holotype and female paratype from the United States: Riverside Co., California: 1½ mi S Temecula (just SW Temecula river underpass), 305 m (33.503333°, -117.123611°), Apr. 01, 1976, W. Icenogle, deposited in AMNH, PBI_OON 50040 ; same data, 5 male, 8 female paratypes, and 3 juveniles, sex unknown, deposited in AMNH, PBI_OON 38005 .

ETYMOLOGY: The specific name is a noun in apposition used to note the strongly elevated carapace in males that resembles a hump, as that of Quasimodo, principal character of the novel The Hunchback of Notre-Dame by Victor Hugo.

DIAGNOSIS: Males can easily be distinguished by the presence of a strongly elevated carapace in lateral view (figs. 6F, 7A–C); females resemble those of O. utahana by the general shape of the genitalia, but in O. quasimodo the external pockets have a more rounded cavity with slightly larger openings directed posteriorly, whereas in O. utah- ana the pockets have a deeper cavity and the openings are smaller, directed to the sides of the abdomen (figs. 9A, 18C, 19C, 21C). In addition, the carapace in females of O. quasimodo is slightly higher in lateral view than in O. utahana . Coloration is also different, although the preserved material could have lost its natural pigmentation.

MALE (PBI_OON 38005): Total length 1.24.

CEPHALOTHORAX: Carapace orange, with diffuse net-shaped pattern, strongly elevated in lateral view (fig. 6A, F). Pars thoracica with long, needlelike setae (figs. 6F, 7A, B, G). Clypeus and cephalic region with gland pores (fig. 7D–F). Sternum with patches or dots of brown pigment (fig. 6B). Endites without serrula. ABDOMEN: Dorsum with gray netlike pattern (fig. 6A, F).

LEGS: Yellow, tibiae I proximal end swollen with row of prolateral strong macrosetae and gland pores on prolateral, ventral surfaces (figs. 6F, 8). Leg spination, metatarsi: IV p0-0-1; r0-0-1. GENITALIA (figs. 16A–C, 20G, H): Bulb spherical; embolus slightly sinuous in lateral view; sperm duct with only one loop (fig. 20G).

FEMALE (PBI_OON 38005): CEPHALOTHO- RAX: Carapace slightly elevated; clypeus and cephalic region without gland pores (fig. 6C, E). Endites with serrula in single row. LEGS: Leg spination, metatarsi: IV p0-0-1; r0-0-1; tibiae I without modifications. GENITALIA (figs. 9, 18C, 19C, 21C, G, H): External pockets present, placed anteriorly, internal pockets absent; anterior receptaculum twisted ventrally, with welldeveloped anterior apodemes; posterior receptaculum present, posterior apodeme divided, formed by two parallel plates.

DISTRIBUTION: Known only from California (map 1).

OTHER MATERIAL EXAMINED: UNITED STATES: California: Orange Co.: 12 min. E Capistrano. Nr Riverside Co. line (33.542422°, -117.531706°), Mar. 30, 1960, W. Gertsch, W. Ivie, R. Schrammel, 1♀ (AMNH, PBI_OON 1132). Riverside Co.: Near Prado Dam, Quercus agrifica litter (33.8902°, -117.6408°), Mar. 24, 1956, I. Newell, 13, 3♀ (AMNH, PBI_OON 1318). San Luis Obispo Co.: Reservoir Canyon (35.29192°, -120.63100°), Aug. 15, 1959, W. Gertsch, W. Ivie, 1♀ (AMNH, PBI_OON 1109).

Figures

FIGURE 6. Orchestina quasimodo, habitus. A, B. Male holotype. F. Same, paratype. C–E. Female paratype. A, C. Dorsal. B, D. Ventral. E, F. Lateral; arrows pointing to the strong macrosetae of tibiae I and the long setae of carapace. Scale bars: A, B, F. 0.3 mm. C, E. 0.5 mm. (PBI_OON 50040, 38005).

FIGURE 7. Orchestina quasimodo, SEM of male. A. Cephalothorax and abdomen, lateral view. B. Cephalothorax, lateral view. C. Same, anterior view. D. Gland pores in cephalic region. E. Same, detail. F. Clypeus and eyes, anterior view. G. Detail of carapace setae. Scale bars: A. 500 μm. B, C. 200 μm. D, F, G. 100 μm. E. 2 μm. (PBI_OON 38005).

FIGURE 8. Orchestina quasimodo, SEM of male, tibiae I. A. Prolateral view. B. Prolateroventral view. C. Detail showing a special field of the tibia with gland pores. D. Same. Scale bars: A. 200 μm. B. 100 μm. C, D. 10 μm. (PBI_OON 38005).

FIGURE 9. Orchestina quasimodo, SEM of female genitalia. A. Epigastric region. B, C. Laterodorsal views. Abbreviations: AA, apodemes of the anterior receptaculum; AR, anterior receptaculum; EP, external pockets; PA, posterior apodeme. Scale bars: A. 100 μm. B, C. 50 μm. (PBI_OON 38005).

FIGURE 16. Orchestina spp., male palps. A–C. O . quasimodo, paratype. D–F. O . kamehameha. G–I. O . saltitans. A, D, G. Prolateral. B, E, H, dorsal. C, F, I. Retrolateral. Scale bars: A–C. 0.1 mm. D–I. 0.2 mm. (PBI_ OON 38005, 38004, 51089).

FIGURE 18. Orchestina spp., female genitalia, ventral view. A. O . utahana. B. O . moaba. C. O . quasimodo. D. O . kamehameha. E. O . saltitans. F. O . nadleri. G. O . auburndalensis. Asterisks indicate external pockets. Scale bars: A, C–G. 0.1 mm. B. 0.2 mm. (PBI_OON 1076, 1078, 1073, 38004, 42584, 42572, 1449).

FIGURE 19. Orchestina spp., cleared female genitalia, ventral view. A. O . utahana. B. O . moaba. C. O . quasimodo. D. O . kamehameha; arrows point to small external pockets. E. O . saltitans. F. O . nadleri. G. O . pavesiiformis. Scale bars: A, E, F. 1.5 mm. B, D, G. 0.2 mm. C. 0.1 mm. (PBI_OON 1459, 1078, 38005, 38004, 26481, 42572, 42267).

FIGURE 20. Orchestina spp., drawings of palp of males. A, B. O . utahana. C, D. O . moaba. E, F. O . obscura. G, H. O . quasimodo. I–K. O . kamehameha. L, M. O . saltitans. N, O. O . pavesiiformis. A, C, E, G, I, K, L, N. Prolateral. B, D, F, H, J, M, O. Dorsal. Scale bars: 0.1 mm. (PBI_OON 1317, 42824, 42747, 38005, 38004, 42587, 42271).

FIGURE 21. Orchestina spp. drawings of female genitalia, ventral. A, E. O . utahana. B. O . moaba. C, G, H. O . quasimodo. D,F. O . kamehameha. A–C, D. Ventral. E–H. Lateral. Scale bars: 0.1 mm. (PBI_OON 1459, 42824, 38005, 38004).