Chococtenus otonga, Dupérré, Nadine, 2015

Dupérré, Nadine, 2015, Description of a new genus and thirteen new species of Ctenidae (Araneae, Ctenidae) from the Chocó region of Ecuador, Zootaxa 4028 (4), pp. 451-484 : 454-456

publication ID

https://doi.org/ 10.11646/zootaxa.4028.4.1

publication LSID

lsid:zoobank.org:pub:DE76F18B-422D-4D97-93FD-F211F691F591

DOI

https://doi.org/10.5281/zenodo.6097679

persistent identifier

https://treatment.plazi.org/id/BC658789-6A6E-FFBC-7397-FF3BFC5E355A

treatment provided by

Plazi

scientific name

Chococtenus otonga
status

sp. nov.

Chococtenus otonga View in CoL new species

Figs 1–5 View FIGURES 1 – 5 , 53 View FIGURES 53, 54. 53 , 55 View FIGURES 55, 56. 55 , 57 View FIGURE 57 .

Type material. Male holotype from Ecuador, Cotopaxi Province, Otonga Biological Reserve (- 00.41994°S - 79.00623°W), 05–19.ix.2014, pitfall, 1997 m, N. Dupérré, E. Tapia, C. Tapia ( QCAZ). One female paratype from Cotopaxi Province, Otonga Biological Reserve, 24.v.–08.vi.2014, hand collecting, N. Dupérré, E. Tapia, C. Tapia ( QCAZ).

Additional material examined. Ecuador: Cotopaxi Province: Otonga Biological Reserve (- 00.41941°S - 78.99607°W), 24.v.–08. vi.2014, 5 ♂4♀, pitfall, 1717m, E. Tapia, C. Tapia, N. Dupérré ( AMNH); 08–21. vi.2014, 1 ♀ (DTC); 03–16. viii.2014, 1 ♀ (DTC); 03–16. viii.2014, 1 ♂2♀ (DTC); 03–16. viii.2014, 2 ♂ (DTC); 05– 19. ix.2014, 3 ♂2♀ ( AMNH); 13–25. xi.2014, 1 ♀ (DTC); 25.xi–08. xii.2014, 2 ♂2♀ (DTC); (- 00.41433°S - 79.00035°W), 21.v.–08. vi.2014, 2 ♂2♀, pitfall, 1888m, E. Tapia, C. Tapia, N. Dupérré ( AMNH); 08–21. vi.2014, 2 ♀ (DTC); 03–16. viii.2014, 1 ♂1♀ (DTC); 03–16. viii.2014, 2 ♂ (DTC); 16.viii.–05. ix.2014, 5 ♂2♀ (DTC); 05– 19. ix.2014, 2 ♂2♀ ( AMNH); 19.ix.–02. x.2014, 2 ♀ (DTC); 13–25. xi.2014, 3 ♂ (DTC); 25.xi–08. xii.2014, 2 ♂1♀ (DTC); (00.41994°S – 79.00623°W), 08–21. vi.2014, 1 ♂, pitfall, 1997m, E. Tapia, C. Tapia, N. Dupérré ( QCAZ); 16.viii–05. ix.2014, 1 ♀ (DTC); 16.viii–05. ix.2014, 1 ♂ (DTC);19.ix.–02. x.2014, 1 ♂1♀ (DTC); 13–25. xi.2014, 1 ♂2♀ (DTC); 25.xi–08. xii.2014, 2 ♂1♀ (DTC); (- 00.41564°S - 79.00425°W), 03–16. viii.2014, 3 ♀, pitfall, 2105m, E. Tapia, C. Tapia, N. Dupérré (DTC); 03–16. viii.2014, 1 ♂ (DTC); 16.viii.–05. ix.2014, 2 ♂2♀ (DTC); 04– 07. ix.2014, 1 ♀ (DTC); 05–19. ix.2014, 7 ♂ (DTC); 05–19. ix.2014, 1 ♂ (DTC); 25.xi–08. xii.2014, 3 ♂ (DTC); Otonga Biological Reserve, 24.v.–08. vi.2014, 1 ♂, hand collecting, E. Tapia, C. Tapia, N. Dupérré (DTC); 21.vi.– 02. vii.2014, 5 ♂2♀, pitfall ( AMNH); 04–07.ix. 2014,1♂, beating, E. Tapia, C. Tapia (DTC); 24–30. v.2014, 10 ♂2♀, night collecting, 1717m, E. Tapia, C. Tapia, N. Dupérré (DTC); 04–07. ix.2014, 1 ♂1♀, night collecting, 1997m, E. Tapia, C. Tapia (DTC); Las Pampas, 10. xi.1997, 1 ♂, 1800m, G. Onore ( QCAZ); Las Pampas, 30. vi.1997, 1 ♂, I. Tapia ( QCAZ); Las Pampas (- 00°25’16’’S - 78°57’04´´W), 02. vii.1997, 1 ♂, 30. vi. 1997, 1 ♂, 1500m, I. Tapia, P. Ponce ( QCAZ); San Francisco de Las Pampas (- 00°25’00’’S - 78°55’00´´W) 01. iv.2007, 1 ♂1♀, 1500m, G. Onore ( QCAZ). Pichincha Province: Las Tolas (0°5’29.9’’N 78°43’2.7’’W) 11. xi.2012, 1 ♂1♀, 1607m, L. Jaramillo ( QCAZ); Guajalito (0°13’53’’N 78°48’10’’W) 01. xi.2013, 1 ♀, 1800m, S. Males ( QCAZ); Rio Guajalito (0°13’59’’N 78°49’0.1’’W) 02. xi.2013, 1 ♀, 1800m, D. Coral ( QCAZ); Rio Guajalito (0°53 78°48’10.1’’W) 19. i.2002, 1 ♂, 1800m, S. Pandun ( QCAZ); Rio Guajalito, 01. xii.1996, 1 ♂, 1100m, T. Morán ( QCAZ); Santa Lucia (00°07’05.3’’N 78°36’43.W) 26. x.2013, 1 ♂, 1901m, L. Jaramillo ( QCAZ); Quito-Nanegalito km 28, 16. i.1993, 1 ♀, 2000m ( QCAZ); Palmeras, 21. x.1989, 1 ♀, M. Calderon ( QCAZ); Palmeras, 20. x.1979, 1 ♂, G. Romero ( QCAZ).

Etymology. The specific name is a noun in apposition taken from the type locality, Otonga Biological Reserve.

Diagnosis. Males are distinguished from all species by the basally twisted embolus ( Fig. 2 View FIGURES 1 – 5 ). Females are distinguished by the elongated lateral processes of the epigynum, from C. neblina by the pentagonal median sector of the epigynum ( Fig. 4 View FIGURES 1 – 5 ), triangular in the later ( Fig. 8 View FIGURES 6 – 9 ).

Description. Male (holotype). Total length: 8.5; carapace length: 4.9; carapace width: 3.8; abdomen length: 3.6. COLORATION: Carapace light brown, sides dark brown with pattern composed of blackish lines, meshes, and a few white setae in rows; pars cephalica light brown with blackish lines and white setae behind PLE; pars thoracica apically light brown with dark brown v-line and a few white setae; fovea dark brown ( Fig. 1 View FIGURES 1 – 5 ). Sternum yellow, endites and labium light orange-brown. Chelicerae orange-brown with two black stripes ( Figs 1 View FIGURES 1 – 5 , 53 View FIGURES 53, 54. 53 ). Abdomen dark brown with pale, half length median band, covered by long black setae, long white setae and spatulate white setae in cluster ( Fig. 1 View FIGURES 1 – 5 ). Legs uniformly orange-brown ( Fig. 55 View FIGURES 55, 56. 55 ). LEGS: Total length: I:15.8; II:15.3; III:13.4; IV:16.5. LEGS SPINATION: Femur I p1-1-1, r1-1-1; tibia I p1, r0, d0; metatarsus I p0 r0. Femur II p1-1-1, r1-1-1-1; tibia II p1-1, r1-1, d0; metatarsus II p0 r0. Femur III pl-1-1-1, r1-1-1-1; tibia III p1-1, r1-1, d1- 1-1, v2-2 -2; metatarsus III p1-1-1, r1-1, v2-2 -2. Femur IV pl-1-1, r1-1; tibia IV p1-1, r1-1, d1-1-1, v2-2 -2; metatarsus IV p1-1-1, r1-1, v1-1 -1-2. GENITALIA: Palpal cymbial keel week ( Fig. 2 View FIGURES 1 – 5 ). Ventral tibial apophysis elongated and curved, retrolateral tibial apophysis spine-like ( Figs 2, 3 View FIGURES 1 – 5 ). Tegulum oval; median apophysis elongated and curved; conductor lamelliform, hyaline; membranous tegular process hyaline, elongated, reaching embolus tip; embolus base twisted; embolus thin, originating prolaterally; tip straight ( Fig. 2 View FIGURES 1 – 5 ).

Female (paratype). Total length: 11.6; carapace length: 4.8; carapace width: 4.1; abdomen length: 6.8. COLORATION: As in male, slightly darker. LEGS: Total length: I: 20.0; II:19.5; III:17.8; IV:21.7. LEGS PINATION: Femur I p1-1-1-1, r1-1-1; tibia I p1-1, r1-1, d1-1-1; metatarsus I p1-1-1, r1-1-1. Femur II p1-1-1-1, r1- 1-1; tibia II p1-1, r1-1, d1-1-1; metatarsus II p1-1-1 r1-1. Femur III pl-1-1-1, r1-1-1; tibia III p1-1, r1-1, d1-1-1, v2- 2 -2; metatarsus III p1-1-1, r1-1, v2-2 -2. Femur IV pl-1-1-1, r1-1-1; tibia IV p1-1, r1-1, d1-1-1, v2-2 -2; metatarsus IV p1-1-1, r1-1-1-1, v1-1 -1-2. GENITALIA: Epigynum with pentagonale median sector, apically with wide unsclerotized region; slightly concave; lateral processes elongated ( Fig. 4 View FIGURES 1 – 5 ). Internal genitalia with elongated, curved copulatory ducts; head of spermathecae rounded with pore apically, base of spermathecae triangular; fertilization ducts elongated ( Fig. 5 View FIGURES 1 – 5 ).

Natural history. Most specimens where collected in pitfall lines set up between 1717–2105 m, a few were also collected on leaves at night, other specimens studied were collected between 1100–2000 m. This generalist species inhabit both the low evergreen montane forest and the cloud forest.

Distribution. Ecuador: Cotopaxi and Pichincha Provinces ( Fig. 57 View FIGURE 57 ).

QCAZ

Museo de Zoologia, Pontificia Universidad Catolica del Ecuador

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Ctenidae

Genus

Chococtenus

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF