Coptoprepes casablanca, Werenkraut, Victoria & Ramírez, Martín J., 2009

Werenkraut, Victoria & Ramírez, Martín J., 2009, A revision and phylogenetic analysis of the spider genus Coptoprepes Simon (Araneae: Anyphaenidae, Amaurobioidinae), Zootaxa 2212, pp. 1-40 : 18-23

Coptoprepes casablanca new species

Figs. 11–14 , 22 c, 23g –i, 24g –i

Type material: Holotype: male from Chile, Región X (Los Lagos), Osorno province, Puyehue Natl. Park, Volcán Casablanca , ca. 40º30’ S, 72º00’ W, 1130–1180 m, site 665, pan traps above treeline, Valdivian rainforest, 20–25 December 1982, A. Newton & M. Thayer ( AMNH; temporary preparations MJR-01330, VIW-00005). Paratype: female from Chile, Región X (Los Lagos), Puyehue Natl. Park, Antillanca rd., 1035 m, Nothofagus forest, 31 January 1985, N. I. Platnick & O. F. Francke ( AMNH; temporary preparations MJR-01338, VIW- 00006).

Etymology: The specific name is a noun in apposition taken from the type locality.

Diagnosis: Females are similar to that of C. eden n. sp. by having the lateral lobes of the epigyne posteriorly concave ( Fig. 13 c), continued in a pouch leading to the copulatory openings, but can be distinguished by the larger, almost spherical spermathecae ( Fig. 24 g–i). Males resemble those of C. flavopilosus by having a curved RTA and relatively short embolus, with the tegulum visible in ventral view ( Fig. 13 b–d), but differ by having simple, hook-shaped, slender median apophysis ( Fig. 23 g–i).

Description: Male (holotype): Prosoma length 2.10, width 1.37, narrower in front than in the female. Tibia/metatarsus length: I, 1.17/1.12; II, 1.02/0.97; III, 0.82/1.02; IV, 1.17/1.42. Chelicerae slightly smaller than those of female, with five teeth on retromargin, five on promargin. Sternum length 1.07, width 0.85. Spines: leg I, femur d 1-1-1, p 2ap; tibia v 2-2 -2; metatarsus v 2 bas. II, femur d 1-1-1, p d1ap; tibia r1-r1-p1 or r1-r1-2; metatarsus v 2 bas. III, femur d 1-1-1, p 0-d1-d1, r d1ap; patella r d1; tibia v p1-2-2, p 1-d1-1-0, r d1- 1, d r1bas; metatarsus v 2 -p1-0 plus apical comb, p and r d1-1-1, d 0-p1- 2. IV, femur d 1-1-1, p and r d1ap; patella r d1; tibia v p1-2-2, p 1-d1-1-0, r 1-d1-0-0, d r1bas; metatarsus v 2-2 -0 plus apical comb, p and r d1-1- 1, d 0-2-2. Opisthosoma length 2.43, spiracle–epigastrium 1.32, spiracle–spinnerets 0.20. Color in ethanol ( Fig. 11 ): As in female but slightly decolorated, the patches of white setae on abdomen on pale cuticle. Palp ( Fig. 13 ): Tibia short, width/length 1.33, RTA shorter than tibia, compressed, curved. Cymbial conductor wide. Tegulum displaced basally in ventral view. Sperm duct with conspicuous loop on anterior-dorsal margin. Embolus thin, with flat rounded basal process. Median apophysis with large base and long, acute, hook-shaped tip. Primary conductor well sclerotized, with canal, ending in acute tip. Secondary conductor a broad concave ledge forming a canal, arising from sclerotized area continuous with anterior-dorsal margin of tegulum, dorsal side regularly covered with denticles not reaching the tip. Paramedian apophysis absent ( Fig. 23 g–i).

Female (paratype): Prosoma length 2.27, width 0.82. Length of tibia/metatarsus: I, 1.00/0.92; II, 0.98/ 0.87; III, 0.80/1.02, 1.20/1.50. Chelicerae with five (right) or six (left) teeth on retromargin, five on promargin. Sternum length 1.17, width 0.90. Spines: leg I, femur d 1-1-1, p 2ap; tibia v 2-2 -p1 or 2-2-0; metatarsus v 2 bas. II, femur d 1-1-1, p d1ap; tibia v r1-r1-p1; metatarsus v 2 bas. III, femur d 1-1-1, p 0-d1-d1, r d1ap; patella r d1; tibia v p1-p1-2, p 1-d1-1-0, r d1-1, d r1bas; metatarsus v 2-2 -0 plus apical comb, p and r d1-1-1, d 0-2- 2. IV, femur d 1-1-1, p and r d1ap; patella r d1; tibia v p1-2-2, p and r 1-d1-1-0, d r1bas; metatarsus v 2-2 -0 plus apical comb, p and r d1-1-1, d 0-2-2. Color in ethanol ( Fig. 12 ): Prosoma and legs dark brown, femora with paler ventral distal spots, patellae and tibiae with longitudinal paler bands. Abdomen dark brown, with paler muscle insertions, two pairs of dorsal lateral patches of white hairs; venter paler, with four longitudinal lines of pale spots. Opisthosoma length 3.23, epigastrium–spiracle 1.55, spiracle–spinnerets 0.33. Epigyne: Lateral lobes separated from median field, concave, continued in pouch to copulatory openings, close to epigastric furrow. Median field weakly sclerotized, slightly elevated ( Fig. 13 g). Copulatory ducts not wrapped. Ducts of accessory bulbs short. Spermathecae near spherical, with ample lumen ( Figs. 13 h, 24g –i).

Variability: The female internal genitalia have been found to be quite variable, often asymmetric ( Fig. 14 ). This may be related with being abnormally developed, as specimens often had scars on the abdominal cuticle compatible with those produced by nematode parasitoids ( Fig. 14 a). Spines in males: III, metatarsusus, d 0-2-2.

Distribution: Known for Río Negro province in Argentina, and for Cautín, Malleco, Osorno provinces, and one isolated record in Aisén province in Chile, which suggest that it may occur in intermediate localities in Palena province.

Other material examined: ARGENTINA: Río Negro: Cerro Chall-huaco, S41.25718º, W71.28316º, 1300 m, pitfall traps (cod. M5S5E06), January 2006, V. Werenkraut, 1 female (MACN-Ar 19161). CHILE: Región IX (Araucanía): Cautín: Volcán Villarrica, 1250 m, site 653, window trap, Nothofagus dombeyi - pumilio forest with Chusquea , 15–29 December 1982, A. Newton & M. Thayer, 5 males ( AMNH); same data, baited pitfall traps, 3 males ( AMNH); site 654, window trap, Nothofagus dombeyi / Saxegothea forest with Drimys , 15–29 December 1982, A. Newton & M. Thayer, 3 males [plus 1 immature male] ( AMNH). Malleco: 14 km E Malalcahuello, 1570 m, site 649, window trap, Nothofagus pumilio / Araucaria forest, 13–31 December 1982, A. Newton & M. Thayer, 1 male ( AMNH); 12 km E Malalcahuello, 1350 m, site 650, window trap, Nothofagus dombeyi / Araucaria forest, 13.31 December 1982, A. Newton & M. Thayer, 2 males ( AMNH); 14 km E Malalcahuello, 1525 m, Araucaria forest, 25 January 1985, N. Platnick & O. Francke, 1 female ( AMNH; temporary preparation MJR-01355). Región X (Los Lagos): Osorno: Puyehue Natl. Park, Volcán Casablanca, 1270 m , trap site 668, carrion trap (squid), just above tree line, 22–25 December 1982, A. Newton & M. Thayer, 1 male ( AMNH; temporary preparation MJR-01331); 1130–1180 m, site 665, pan traps above treeline, Valdivian rainforest, 20–25 December 1982, A. Newton & M. Thayer, 4 males and 1 female ( AMNH; temporary preparation MJR-01352); 1250 m, tree line, 31 January 1985, N. I. Platnick & O. F. Francke, 1 female ( AMNH; temporary preparation MJR-01350), 2 females ( AMNH; temporary preparations MJR-01351, MJR-01354). Región XI (Ibáñez del Campo): Aisén: Reserva Nac. Cerro Castillo, 500–600 m, dry forest, 7 February 1985, N. I. Platnick & O. F. Francke, 1 female ( AMNH; temporary preparations MJR-01353, VIW-00019).

Figures

FIGURE 11. Coptoprepes casablanca new species. a – d male holotype (a dorsal habitus; b prosoma, dorsal view; c ventral habitus, ventral view; d prosoma, ventral view).

FIGURE 12. Coptoprepes casablanca new species. a – d female paratype (a dorsal habitus; b prosoma, dorsal view; c ventral habitus, ventral view; d prosoma, ventral view).

FIGURE 13. Coptoprepes casablanca new species. a – f male, g – h female paratype (a left palp, male holotype, prolateral view, b same, ventral view, c same, retrolateral view; d copulatory bulb, preparation MJR- 01331, prolateral view, e same, apical view, f same, retrolateral view; g epigyne, ventral view; h vulva).

FIGURE 14. Coptoprepes casablanca new species. a epigyne in ventral view, b – f epigyne cleared in dorsal view (a preparation VIW- 00019, arrows to scars on abdominal cuticle probably produced by endoparasitic flies; b same specimen as a, preparation MJR- 01353; c preparation MJR- 01354; d preparation MJR- 01352; e preparation MJR- 01355; f preparation MJR- 01350).

FIGURE 22. Prosoma, anterior view: a Coptoprepes ecotono, female paratype; b C. bellavista, female paratype; c C. casablanca, female paratype; d C. contulmo, male holotype; e C. eden, female paratype; f C. recinto, female paratype.

FIGURE 23. Male copulatory bulbs, schematic. a – c C. ecotono (a preparation MJR- 01343, prolateral view, b same, apical view, c same, retrolateral view); d – f C. bellavista (d preparation MJR- 01329, prolateral view, e same, apical view, f same, retrolateral view); g – i C. casablanca (g preparation MJR- 01331, prolateral view, h same, apical view, i same, retrolateral view); j – l C. contulmo (j preparation MJR- 01334, prolateral view, k same, apical view, l same, retrolateral view). m – o C. recinto (m preparation MJR- 01332, prolateral view, n same, apical view, o same, retrolateral view). Abbreviations: (C 2) secondary conductor, (E) embolus, (EBP) embolus basal process, (MA) median apophysis, (PMA) paramedian apophysis, (SDAL) apical loop of sperm duct, (T) tegulum.

FIGURE 24. Female vulvae. a – c C. ecotono (a female paratype, dorsal view, b same, ventral view, c trajectory in ventral view, schematic); d – f C. bellavista (d female paratype, dorsal view, e same, ventral view, f trajectory in ventral view, schematic); g – i C. casablanca (g female paratype, dorsal view, h same, ventral view, i trajectory in ventral view, schematic); j – l C. eden (j female paratype, dorsal view, k same, ventral view, l trajectory in ventral view, schematic); m – o C. recinto (m female paratype, dorsal view, n same, ventral view, o trajectory in ventral view, schematic). Abbreviations: (AB) accessory bulb, (CD) copulatory duct, (CO) copulatory opening, (FD) fertilization duct, (LL) lateral lobe, (MF) median field, (S) spermathecae.