Coptoprepes ecotono, Werenkraut & Ramírez

Barone, Mariana L., Werenkraut, Victoria & Ramírez, Martín J., 2016, New species and phylogenetic relationships of the spider genus Coptoprepes using morphological and sequence data (Araneae: Anyphaenidae), Zootaxa 4175 (5), pp. 436-448 : 440-443

Coptoprepes ecotono, Werenkraut & Ramírez

Figs 3–4

Coptoprepes ecotono Werenkraut & Ramírez 2009: 9 (male holotype MACN-Ar 2218, female paratype excluded).

Note. Our analysis of the COI barcoding sequence indicates that a male with the characteristics of Coptoprepes ecotono (CASENT 9029781) share identical sequences with a still undescribed female. Both specimens were collected in the same locality in Chiloé, southern Chile, and have similar somatic morphology. Thus we consider them as conspecific. In comparison, the minimum distance we found between Coptoprepes species is 5.3%, between C. flavopilosus and C. bellavista . The female originally described as C. ecotono is here identified as C. laudani n. sp.

Emended diagnosis. Males are similar to those of C. campanensis by virtually lacking RTA, but can be distinguished by having the median apophysis smaller, not bifid ( Werenkraut & Ramírez 2009: figs 7A–F, 23A–C). Females are easily distinguished from those of all other Coptoprepes by having two small superficial pouches close to the epigastric furrow and spherical, contiguous spermathecae, with the copulatory ducts posterior to them ( Fig. 4 ). Coptoprepes casablanca has roughly spherical spermathecae, but with the copulatory ducts lateral to them (see Werenkraut and Ramírez 2009: figs 24G–H).

Description. Male (holotype). Described in Werenkraut & Ramírez (2009: 9, figs 5, 7A–F, 23A–C).

Female (MACN-Ar 19397). Total length 5.19. Carapace length 2.39, width 1.60. Length of tibia/metatarsus I—1.00/0.87; II—0.93/0.87; III—0.80/0.93; IV—1.30/1.40. Palpal tarsus length 0.63. Chelicerae with three promarginal and four retromarginal teeth. Sternum length 1.30, width 0.93. Abdomen length 2.87, width 1.47. Tracheal spiracle 0.23 from spinnerets, 1.50 from epigastric furrow. Spines: leg I—femur d 1-1-1, p d2ap; metatarsus v 2 bas. II—femur d 1-1-1, p d1ap; metatarsus v 2 bas. III—femur d 1-1-1, p 0-d1-d1, r d1ap; patella r d1; tibia p 1-d1-1-0, r 0-d1-1-0, v p1-2-2; metatarsus d 0-p1-2, p and r d1-1-1, v 2 -0-(2+thick setae). IV—femur d 1-1-1, p 0-d1-d1, r d1ap; patella r d1; tibia p and r 1-d1-1-0, v 2-2 -2; metatarsus d 0-2-2, p and r d1-1-1, v 2-2 - (2+thick setae). Color in ethanol: Carapace and sternum reddish brown, legs lighter than prosoma. Dorsal abdomen light brown with symmetrical pattern of dark brown patches, ventral abdomen light brown. Sternum reddish brown, darker than legs ( Figs 3 A–B). Epigyne with two superficial pouches close to epigastrium, spermathecae spherical, contiguous to each other ( Figs 3 C, 4). Copulatory openings close to epigastrium ( Figs 3 D, 4), accessory bulbs oriented posteriorly, connection with copulatory ducts apparently close to the beginning of the latter. Copulatory ducts describing a loop from dorsal to ventral at base of spermathecae. First portion of fertilization duct emerging from the base of spermathecae, running posteriorly ( Fig. 4 ).

Variability. Rarely five teeth on promargin of chelicerae. Spines slightly variable between right-left sides. Ventral spines of metatarsus in females absent or r 1bas. Leg III—femur r 0-d1-d1; tibia r 1-d1-1-0; metatarsus d 0- 2-2, v x-2 -x or x-p 1-x. IV—femur p d1ap or none; tibia v p1-2-2. Frequently dorsal side of patella and tibia with long apical and basal bristles.

Distribution. Known from Nahuelbuta Natl. Park in Chile, Región IX (Araucanía) and Chiloé Island in Region X (Los Lagos), also in Río Negro province in Argentina.

Other material examined. ARGENTINA: Río Negro: Bariloche: El Bolsón , Reserva Forestal Loma del Medio-Río Azul , S41.97726° W71.55416°, Malaise trap, April 2002, P. Sackmann, 1♀ (MACN-Ar 19397, temporary preparations MLB 0 4167, VIW-00007, MLB 00902) . CHILE: Región IX (Araucanía): Malleco : Nahuelbuta Natl. Park, S37.78464° W72.95329°, elev . 1200 m, fogging Nothofagus dombeyi , 12.II.2005, J.E. Barriga, 3♀ (MACN-Ar 31360, MACN-Ar 31361, MACN-Ar 31359). Región X (Los Lagos): Chiloé: Isla Chiloé, Chinquén , S42.61830° W74.10970°, elev . 60 m, fogging Nothofagus nitida and Amomyrtus luma , 04.III.2008, Arias et. al., 1♀ 1♂ (CASENT 9 0 29781, temporary preparations MLB 0 4087, MLB 04088); fogging Nothofagus nitida and Lonicera sempervirens 1♀ (CASENT 9034099); elev. 31 m, fogging Nothofagus nitida , 01.III.2008, 1♀ (CASENT 9034041).

Genetic barcoding. The COI sequence of a male (CASENT 9029781) is identical as one of the females (CASENT 9034099), and diverge 0.8% with the other female sequenced (CASENT 9034041). This group of sequences diverge 6.1% with the nearest neighbor, the only record of C. campanensis (MACN-Ar 28847).

Figures

FIGURE 3. Coptoprepes ecotono Werenkraut & Ramírez (MACN-Ar 19397, temporary preparation VIW- 00007), female: A – B habitus; A dorsal; B ventral; C – D epigyne; C ventral view; D posterior view. Abbreviation: CO, copulatory opening.

FIGURE 4. Coptoprepes ecotono Werenkraut & Ramírez (MACN-Ar 19397, temporary preparation MLB 00902), cleared epigyne: A, C ventral view; B, D dorsal view. Scale bars: A – B 200 µm; C – D 100 µm; Abbreviations: AB, accessory bulb; CD, copulatory duct; CO, copulatory opening; FD, fertilization duct; S, spermatheca.