Corinna balacobaco Rodrigues & Bonaldo, 2014, n. sp.
Creators: name: Rodrigues, Bruno V. B.
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Corinnidae
Corinna
Corinna balacobaco

description: Corinna balacobaco n. sp.
Figs. 37, 83–86, 89
Type material. Male holotype from Parque Estadual do Rio Doce, 19º39'31"S 42º34'32"W, Timóteo, Minas Gerais, Brazil, 20.VII.2010, B.T. Faleiro, deposited in UFMG (4931). Paratypes: Brazil. Minas Gerais: Timóteo (Parque Estadual do Rio Doce) 19º39'30.6"S 42º34'28.2"W, 1 female, 22. II.2011, B.T. Faleiro (UFMG 10695); 19º39'31"S 42º34'28"W, 1 female, 20.VII.2010, B.T. Faleiro (UFMG 4956).
Etymology. The specific name is a noun in apposition, from the Brazilian expression “do balacobaco ”. This expression denotes that something is excellent and problably had a Bantu origin.
Diagnosis. Males of Corinna balacobaco n. sp. differ from those of other species with a small median projection on prolateral surface of RTA by the tapered apex of RTA, embolus short, bent in right angle and by the strongly sclerotized conductor (Figs. 83–84); females are readily recognized by the copulatory opening inserted in a ventral triangular epigynal projection (Fig. 85).
Description. Carapace black with posterior end of thoracic region dark reddish brown; chelicerae black, endites and sternum red, labium black with posterior end paler, legs I and II dark yellow, except metatarsus and tarsus, brown, legs III and IV yellow, except metatarsus and tarsus, brown; abdomen pale gray with dorsal scutum extended to the median region of abdomen. Total length: 11.2. Carapace 5.6 long; 4.55 wide; 2.9 high. Clypeus 0.5 high. Abdomen 5.2 long; 3.7 wide. Eyes: anterior row 2.0, posterior row 2.4. MOQ: 0.74 long, 0.75 anterior wide, 0.75 posterior wide. Eye diameters and interdistances: AME 0.25; ALE 0.2; PME 0.2; PLE 0.18; AME–AME 0.27; AME–ALE 0.41; PME–PME 0.36; PME–PLE 0.71; ALE–PLE 0.17. Chelicerae 3.1 long; 4 retromarginal teeth and 3 promarginal teeth. Sternum 2.8 long; 2.2 wide. Leg measurements: femur I 4.7/ patella 2.1/ tibia 4.25/ metatarsus 3.8/ tarsus 1.85/ total 16.7; II 4.35/ 2.05/ 3.6/ 3.5/ 1.15/ 14.65; III 3.5/ 1.6/ 2.5/ 3.1/ 1.3/ 12; IV 4.6/ 1.65/ 3.9/ 4.3/ 1.5/ 15.95. Leg formula 1423. Leg spination: I—femur d1-1-0, p0-0-1; tibia v2-2 -2-2; metatarsus v2-2 -0. II—femur d1-1-0, p0-0-1; tibia vp1-1-1; metatarsus v2-2 -0. III—femur d1-1-1, p0-0-1; tibia v2-2 -0, r0-1-1; metatarsus p0-1-0, r0-1-0, v2-2 -1. IV—femur d1-1-0, r0-0-1; tibia r0-1-1, v2-1 r-1p; metatarsus p0-1-0, r0-1-0, v2- 2 -1. Palp: femur with three posterior dorsal spines; T without projection; TPC placed far from base of embolus; E filiform partially covered by conductor (Figs. 83–84).
Female (paratype UFMG 4956). Coloration as in male. Total length 14.3. Carapace 6.0 long; 4.8 wide; 3.0 high. Clypeus 0.5 high. Abdomen 8.0 long; 5.2 wide. Eyes: anterior row 2.25, posterior row 2.7. MOQ: 0.72 long, 0.8 anterior wide, 0.85 posterior wide. Eye diameters and interdistances: AME 0.25; ALE 0.2; PME 0.2; PLE 0.18; AME–AME 0.3; AME–ALE 0.5; PME–PME 0.45; PME–PLE 0.82; ALE–PLE 0.15. Chelicerae 3.5 long. Sternum 2.8 long; 2.5 wide. Leg measurements: femur I 5.0/ patella 2.35/ tibia 4.2/ metatarsus 3.5/ tarsus 1.85/ total 16.9; II 4.25/ 2.15/ 3.5/ 3.3/ 1.75/ 14.95; III 3.5/ 1.65/ 2.55/ 3.0/ 1.5/ 12.2; IV 4.5/ 2.0/ 3.5/ 4.2/ 1.5/ 15.7. Leg formula 1423. Leg spination: I—femur d1-0-1, p0-0-1; tibia v2-2 -2-2; metatarsus v2-2 -0. II—femur d1-1-0, p0-0-1; tibia vr1-1-1; metatarsus v2-2 -0. III—femur d1-1-0, p0-0-1; tibia v2-2 -0, r0-1-1; metatarsus p0-1-0, r1-0-0, v2-2 -1. IV—femur d1-1-0, r0-0-1; tibia r0-1-1, v2-2 -0; metatarsus r0-1-0, v2-2 -1. Epigynum: epigynal plate not projected posteriolly; CO anteriorly placed between SS; anterior border of copulatory opening conspicuous; CD not visible ventrally; SS closely placed in relation to each other (Figs. 85–86).
Variation. Length (2 females): total 10.9–14.3; carapace 5.3–6.0; femur I 4.7–5.0.
Distribution. Known only from the type locality.
Other material examined. None.
description: Published as part of Rodrigues, Bruno V. B. & Bonaldo, Alexandre B., 2014, Taxonomic revision of the species group rubripes of Corinna Koch, 1842 (Araneae; Corinnidae), pp. 451-493 in Zootaxa 3815 (4) on pages 481-484, DOI: 10.11646/zootaxa.3815.4.1, http://zenodo.org/record/252676