taxonID	type	description	language	source
CD69878AFF8EB90CFF30716CFCF47E1C.taxon	diagnosis	Diagnosis. See Polotow & Brescovit 2009: 586 – 587.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB90CFF30716CFCF47E1C.taxon	type_taxon	Type species. Isoctenus foliiferus Bertkau, 1880. Composition. Nineteen valid species.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB90CFF30716CFCF47E1C.taxon	distribution	Distribution. South America, from northeastern Brazil to northern Argentina and Uruguay, in Atlantic Forest, Cerrado (Brazilian savanna), Caatinga, and urban regions.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	description	Figures 1, 2, 7	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	materials_examined	Type material. Male holotype from Toca da Esperança, Jussara, 11 º 02 ’ S, 41 º 58 ’ W, Bahia, Brazil, 12 – 18. VII. 2000, E. F. Ramos et al. coll., deposited in IBSP 130548. Female paratype from Toca do Índio, Central, 11 º 08 ’ S, 42 º 06 ’ W, Bahia, Brazil, 12 – 18. VII. 2000, E. F. Ramos et al. coll., deposited in IBSP 130550. Additional material examined. BRAZIL. Bahia: Central, Toca do Índio, 11 º 08 ’ S, 42 º 06 ’ W, 1 male and 1 female, 12 – 18. VII. 2000, E. F. Ramos et al. coll. (IBSP 130549); Toca do Índio, 5 males and 2 females, 12 – 18. VII. 2000, E. F. Ramos et al. coll., pitfall (IBSP 130533; 130534; 130543; 130544, 130545; 130546; 130547); Jussara, Toca da Esperança, 11 º 02 ’ S, 41 º 58 ’ W, 2 males, 12 – 18. VII. 2000, E. F. Ramos et al. coll. (IBSP 130538); Toca da Esperança, 5 males and 1 female, 12 – 18. VII. 200, E. F. Ramos et al. coll., pitfall (IBSP 130535; 130536; 130537; 130540; 130541; 130542).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	etymology	Etymology. The species name is a toponym in apposition referring to the type locality. The name Jussara comes from the Tupi word ii’sara or yu’sara, and it means itch or burning. The word was used to designate palm trees of the genus Euterpe Martius 1824. Jussara is also a common female name in Brazil.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	diagnosis	Diagnosis. Males of Isoctenus jussara new species resemble those of I. ordinario Polotow & Brescovit, 2009 by the elongated dorsal branch of RTA and truncated ventral branch of RTA, but can be distinguished by the shorter palpal tibia, the basal position of the RTA in the tibia, and the cymbium with larger retrolateral ventral projection (Fig. 2 A – B) whereas the latter species can be distinguished by the longer palpal tibia, distal position of the RTA in the tibia, and cymbium with a shorter retrolateral ventral projection (see Polotow & Brescovit 2009: fig. 9 A – B). Females of Isoctenus jussara new species resemble those of I. ordinario by the squared-shaped median field of the epigynum (Fig. 2 C), but can be distinguished by the wider median field of the epigynum (Fig. 2 C), while I. ordinario presents a narrower field (Polotow & Brescovit 2009: fig. 9 C).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	description	Description. Male (holotype, IBSP 130548). Prosoma reddish brown, with diverging dark stripes from the thoracic groove to the margin of the carapace; carapace with light brown border; brown thoracic groove and black rings around eyes (Fig. 1 A). Sternum, endites, labium, and legs light reddish brown (Fig. 1 B). Brownish dorsum of opisthosoma, with a longitudinal light stripe with indented borders (Fig. 1 A). Light brown venter of opisthosoma (Fig. 1 B). Total length 7.25. Carapace 4.17 long and 3.31 wide. Eye diameters: AME 0.17, ALE 0.17, PME 0.24, PLE 0.19. Leg measurements: I: femur 3.80 / patella 1.53 / tibia 3.74 / metatarsus 3.33 / tarsus 1.70 / total 14.10; II: 3.41 / 1.56 / 3.02 / 3.20 / 1.20 / 12.39; III: 3.03 / 1.32 / 2.51 / 3.15 / 1.06 / 11.07; IV: 4.22 / 1.49 / 3.92 / 5.95 / 1.44 / 17.02. Leg formula 4123. Leg spination: tibia I and II v 2 - 2 - 2 - 2 - 2, r 1 - 0 - 0, p 0 - 1 - 0, III v 2 - 2 - 2, r 1 - 1 - 0, p 1,1,0 and IV v 2 - 2 - 2, r 1 - 0 - 1, p 1 - 0 - 1; metatarsus I, II and III v 2 - 2 - 2, r 1 - 1 - 1, p- 1 - 1 - 1, IV v 1 - 1 - 1 - 1 - 1 - 1 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 0. Palp: short tibia, elongated retrolateral tibial apophysis, and depression in the dorsal branch; ventral apophysis slightly curved retrolaterally (Fig. 2 A – B); RTA with ventral branch slightly elevated and truncated (Fig. 2 B). Cymbium with a short retrolateral dorsal projection and a short, rounded, retrolateral ventral projection (Fig. 2 A – B). Curved embolus, with a strong probasal projection (Fig. 2 A – B). Cup-shaped median apophysis curved prolaterally and with a small distal projection and a large basal projection (Fig. 2 A – B). Female (paratype, IBSP 130550). Coloration as in male, but darker (Fig. 1 C – D). Total length 8.65. Carapace 4.31 long and 3.48 wide. Eye diameters: AME 0.19, ALE 0.14, PME 0.25, PLE 0.21. Leg measurements: I: femur 3.35 / patella 1.85 / tibia 3.10 / metatarsus 2.47 / tarsus 1.05 / total 11.82; II: 3.16 / 1.70 / 2.51 / 2.46 / 1.03 / 10.86; III: 2.85 / 1.45 / 2.20 / 2.63 / 1.00 / 10.13; IV: 3.93 / 1.55 / 3.44 / 4.21 / 1.33 / 14.46. Leg formula 4123. Leg spination: tibia I v 2 - 2 - 2 - 2 - 2, r 0 - 0 - 1, p 0 - 0 - 1, II v 2 - 2 - 2 - 2 - 2, r 0 - 0 - 0, p 0 - 0 - 0, III v 2 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 1 and IV v 2 - 2 - 2, r 1 - 1, p 1 - 1; metatarsus I v 2 - 2 - 2, r 0 - 0 - 1, p 0 - 0 - 1, II v 2 - 2 - 2 r 0 - 0 - 0 p 0 - 0 - 0, and III v 2 - 2 - 2, r 1 - 0 - 1, p- 1 - 1 - 1, IV v 1 - 1 - 1 - 1 - 1 - 1 - 1 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 1. Epigynum: median field cordiform (Fig. 2 C); elongated lateral spurs, partially covered by the median field and with a truncated tip. Internal genitalia: well-developed spermathecal base and slightly enlarged copulatory ducts (Fig. 2 D). Variation. Six males: total length 6.15 – 7.76, carapace length 3.77 – 4.60, femur I 3.63 – 4.55; 3 females: total length 8.65 – 14.18, carapace 4.31 – 6.17, femur I 3.35 – 4.36.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8EB909FF3070ADFEEA7A36.taxon	distribution	Distribution. Collected outside caves in northern Chapada Diamantina mountains, state of Bahia, northeastern Brazil (Fig. 7).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	description	Figures 3, 4, 7	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	materials_examined	Type material. Male holotype from Campus 19 º Batalhão Caçadores, Cabula, Salvador, 12 º 57 ’ S, 38 º 27 ’ W, Bahia, Brazil, 6 – 11. VI. 2007, D. Uzel coll., deposited in IBSP 135436. Female paratype from the same locality and data, deposited in IBSP 135435. Additional material examined. BRAZIL. Bahia: Lauro de Freitas, 12 º 53 ’ S, 38 º 18 ’ W, 1 male, 4. X. 1989. (UFBA-LAP 545); 1 male, 1. VII. 1990 (UFBA-LAP 694); Itapuã, Lagoa Abaeté, 12 º 58 ’ S, 38 º 30 ’ W, 1 male, 4. V. 1991, L. L. Casais coll. (UFBA-LAP 873); Salvador, Cabula, Campus 19 º Batalhão Caçadores, 12 º 57 ’ S, 38 º 27 ’ W, 1 male and 3 females, 6 – 11. VI. 2007, D. Uzel coll. (IBSP 135385; 135437); Salvador, Ondina, Parque Zoobotânico, 13 º 00 ’ S, 38 º 30 ’ W, 1 male, 26. XI. 1993, M. F. Dias coll. (UFBA-LAP 1388).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	etymology	Etymology. The species name is a toponym in apposition referring to the type locality.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	diagnosis	Diagnosis. Males of Isoctenus cabula new species resemble those of I. foliifer Bertkau, 1880 by the shape of the RTA, but can be distinguished by a slightly longer tip of the dorsal branch of the RTA, a well-developed and pointed apically ventral retrolateral projection of the cymbium, and an elongated posterior projection of the median apophysis (Fig. 4 A – B), whereas I. foliifer can be distinguished by a slightly shorter tip of the dorsal branch of the RTA, a poorly-developed and blunted apically ventral retrolateral projection of the cymbium, and a shorter posterior projection of the median apophysis (Polotow & Brescovit 2009: fig. 4 A – B). Females of Isoctenus cabula new species resemble those of I. foliifer by the cordiform-shaped median field of the epigynum, but can be distinguished by a slightly shorter median field of the epigynum and smaller lateral spurs (Fig. 4 C), whereas I. follifer can be distinguished by a slightly longer median field of the epigynum and larger lateral spurs (Polotow & Brescovit 2009: fig. 4 C).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	description	Description. Male (holotype, IBSP 135436). Prosoma reddish brown, with diverging dark stripes from the thoracic groove to the margin of the carapace; carapace with light brown border; brown thoracic groove and black rings around eyes (Fig. 3 A). Sternum, endites, labium, and legs light reddish brown (Fig. 3 B). Brownish dorsum of opisthosoma, with a longitudinal light stripe with indented borders and arrow-shaped (Fig. 3 A). Light brown venter of opisthosoma (Fig. 3 B). Total length 7.45. Carapace 4.15 long and 3.08 wide. Eye diameters: AME 0.18, ALE 0.15, PME 0.22, PLE 0.19. Leg measurements: I: femur 4.45 / patella 1.75 / tibia 4.55 / metatarsus 4.18 / tarsus 1.71 / total 16.64; II: 3.77 / 1.65 / 3.51 / 3.52 / 1.37 / 13.82; III: 3.45 / 1.35 / 2.81 / 3.47 / 1.31 / 12.39; IV: 4.70 / 1.58 / 4.04 / 5.42 / 1.81 / 17.55. Leg formula 4123. Leg spination: tibia I and II v 2 - 2 - 2 - 2 - 2, r 1 - 1 - 0, p 1 - 1 - 0, III and IV v 2 - 2 - 2, r 1 - 1 - 0, p 1,1,0; metatarsus I, II and III v 2 - 2 - 2, r 1 - 1 - 1, p- 1 - 1 - 1, IV v 1 - 1 - 1 - 1 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 1. Palp: short tibia, approximately two-thirds of cymbium length; dorsal branch of RTA elongated and with several internal folds and rounded tip; ventral branch of RTA short (Fig. 4 A – B); ventral apophysis short and slightly curved retrolaterally (Fig. 4 A – B). Cymbium with an elongated retrolateral dorsal projection and a short retrolateral ventral projection (Fig. 4 A – B). Curved embolus, with a strong probasal projection (Fig. 4 A – B). Cup-shaped median apophysis curved prolaterally and with a small distal projection and an elongated basal projection (Fig. 4 A – B). Female (paratype, IBSP 135435). Coloration as in male, but darker (Fig. 3 C – D). Total length 9.18. Carapace 4.14 long and 3.00 wide. Eye diameters: AME 0.17, ALE 0.19, PME 0.21, PLE 0.18. Leg measurements: I: femur 3.27 / patella 1.79 / tibia 2.91 / metatarsus 2.44 / tarsus 1.05 / total 11.46; II: 2.98 / 1.59 / 2.45 / 2.13 / 0.97 / 10.12; III: 2.64 / 1.40 / 2.12 / 2.41 / 0.91 / 9.48; IV: 3.83 / 1.59 / 3.19 / 3.91 / 1.34 / 13.86. Leg formula 4123. Leg spination: tibia I and II v 2 - 2 - 2 - 2 - 2, r 0 - 0 - 0, p 0 - 0 - 0, III v 2 - 2 - 2, r 1 - 1 - 0, p 1 - 1 - 0 and IV v 2 - 2 - 2, r 1 - 1 - 0, p 1 - 1 - 0; metatarsus I and II v 2 - 2 - 2 r 0 - 0 - 0 p 0 - 0 - 0, and III v 2 - 2 - 2, r 1 - 1 - 1, p- 1 - 1 - 1, IV v 1 - 1 - 1 - 1 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 1. Epigynum: median field cordiform with projected posterior margin (Fig. 4 C); lateral spurs partially covered by the median field and with rounded tip (Fig. 4 C). Internal genitalia: well-developed spermathecal base and slightly enlarged copulatory ducts (Fig. 4 D). Variation. Four males: total length 7.12 – 8.52 carapace length 4.01 – 4.51, femur I 4.06 – 5.00; 2 females: total 9.64 – 9.87, carapace length 4.54 – 5.07, femur I 3.58 – 3.71.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF8BB90BFF3074B8FF627F66.taxon	distribution	Distribution. Coastal Atlantic Rain Forest, near Todos os Santos Bay, northeastern Brazil, state of Bahia (Fig. 7).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	description	Figures 5 – 7	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	materials_examined	Type material. Male holotype from Fazenda Santa Tereza, Uruçuca, 14 º 35 ’ S, 39 º 17 ’ W, Bahia, Brazil, 3. VI. 1970, Ceplac Team coll., deposited in MNRJ 13435. Additional material examined. BRAZIL. Bahia: Belmonte, Barrolândia, Estação Experimental Gregório Bóndar, 16 º 05 ’ S, 39 º 16 ’ W, 1 male, 15. X. 1987, J. Becker coll. (MNRJ 13428); Porto Seguro, Estação Ecológica Veracel / Veracruz (EEVC), 16 º 26 ’ S, 39 º 03 ’ W, 2 males, 23. X. 2001, M. G. C. Costa coll. (UFBA 02175; 02184); 1 male, 10. III. 2002, M. G. C. Costa coll. (UFBA 02181).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	etymology	Etymology. The species name is a noun in apposition that honors the Botocudos indigenous people, a generic denomination used by the Portuguese colonizers to several indigenous peoples from the states of Bahia, Espírito Santo and Minas Gerais, Brazil. The term Botocudo in Portuguese (from botoque, a plug), is an allusion to the wooden disks worn in their lips and ears.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	diagnosis	Diagnosis. Males of Isoctenus botocudos new species resemble those of I. areia Polotow & Brescovit, 2009 by the short dorsal branch of the RTA, but can be distinguished by the truncated tip of the dorsal branch of the RTA, by the smaller ventral branch of the RTA, and by the smaller ventral retrolateral projection of cymbium (Fig. 6 A – B), whereas I. areia can be distinguished by elongated tip of the dorsal branch of the RTA, by the larger ventral branch of the RTA, and by the larger ventral retrolateral projection of cymbium (Polotow & Brescovit 2009: fig. 6 A – B).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	description	Description. Male (holotype, MNRJ 13435). Prosoma reddish brown, with brown thoracic groove and black rings around eyes (Fig. 5 A). Sternum, endites, labium, and legs light reddish brown (Fig. 5 B). Brownish dorsum of opisthosoma, with a longitudinal light stripe with indented borders and arrow-shaped (Fig. 5 A). Light brown venter of opisthosoma (Fig. 5 B). Total length 9.11. Carapace 4.99 long and 3.76 wide. Eye diameter: AME 0.22, ALE 0.17, PME 0.23, PLE 0.21. Leg measurements: I: femur 3.80 / patella 1.53 / tibia 3.74 / metatarsus 3.33 / tarsus 1.70 / total 14.10; II: 3.41 / 1.56 / 3.02 / 3.20 / 1.20 / 12.39; III: 3.03 / 1.32 / 2.51 / 3.15 / 1.06 / 11.07; IV: 4.22 / 1.49 / 3.92 / 5.95 / 1.44 / 17.02. Leg formula 4123. Leg spination: tibia I and II v 2 - 2 - 2 - 2 - 2, r 1 - 1 - 0, p 0 - 1 - 0, III v 2 - 2 - 2, r 1 - 1 - 0, p 1,1,0 and IV v 2 - 2 - 2, r 1 - 1 - 0, p 1 - 1 - 0; metatarsus I, II and III v 2 - 2 - 2, r 1 - 1 - 1, p- 1 - 1 - 1, IV v 1 - 1 - 1 - 1 - 2 - 2, r 1 - 1 - 1, p 1 - 1 - 1. Palp: short tibia, approximately half of cymbium length; dorsal branch of RTA truncate and with a rounded tip and ventral branch of RTA short (Fig. 6 A – B); ventral apophysis short and slightly curved retrolaterally (Fig. 6 A – B). Cymbium with an elongated retrolateral dorsal projection and a short retrolateral ventral projection (Fig. 6 A – B). Curved embolus, with a strong probasal projection (Fig. 6 A – B). Cup-shaped median apophysis curved prolaterally and with a small distal projection and a wide basal projection (Fig. 6 A – B). Female. Unknown. Variation. Four males: total length 7.54 – 9.65, carapace length 4.61 – 5.53, femur I 4.60 – 6.11.	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF89B90AFF307188FB2E7CA9.taxon	distribution	Distribution. Coastal Atlantic Rain Forest, southern state of Bahia, northeastern Brazil (Fig. 7).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
CD69878AFF87B905FF307692FACD7E4C.taxon	materials_examined	Material examined. BRAZIL, Paraíba: Mamanguape, Reserva Biológica Guaribas, 6 º 44 ’ S, 35 º 09 ’ W, 1 male, 28 – 29. X. 2011, E. P. Lorenzo et al. coll. (ColUFPB AR 763); Pernambuco, Igarassu, Refúgio Ecológico Charles Darwin (RECD), 7 º 49 ’ S, 34 º 52 ’ W, 1 male, 8. VIII. 2011, A. M. De Souza et al. Coll. (ColUFPB AR 247); Usina São José, 7 º 33 ’ S, 35 º 02 ’ W, 6 males and 3 females, IX. 2013, E. P. Lorenzo coll. (ColUFPB AR 1606; 1704).	en	Pontes Moraes, Isadora M., Polotow, Daniele, Labarque, Facundo M., Da Silva, Marcio B. (2023): Description of three new species of Isoctenus Bertkau, 1880 and new records for I. areia Polotow & Brescovit (Araneae, Ctenidae) from northeastern Brazil. Zootaxa 5315 (2): 177-186, DOI: 10.11646/zootaxa.5315.2.6, URL: http://dx.doi.org/10.11646/zootaxa.5315.2.6
