Corinna balacobaco, Rodrigues, Bruno V. B. & Bonaldo, Alexandre B., 2014

Rodrigues, Bruno V. B. & Bonaldo, Alexandre B., 2014, Taxonomic revision of the species group rubripes of Corinna Koch, 1842 (Araneae; Corinnidae), Zootaxa 3815 (4), pp. 451-493 : 481-484

publication ID

https://doi.org/ 10.11646/zootaxa.3815.4.1

publication LSID

lsid:zoobank.org:pub:C2E5AE3F-EA1A-43AA-9337-803F9A1BB7C9

DOI

https://doi.org/10.5281/zenodo.6130181

persistent identifier

https://treatment.plazi.org/id/03E1CA22-6B32-5E62-FF2E-F9EFFDDB0E85

treatment provided by

Plazi

scientific name

Corinna balacobaco
status

sp. nov.

Corinna balacobaco View in CoL n. sp.

Figs. 37 View FIGURES 37 – 40 , 83–86 View FIGURES 83 – 88 , 89 View FIGURE 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 View FIGURES 83 – 88 ); females are readily recognized by the copulatory opening inserted in a ventral triangular epigynal projection ( Fig. 85 View FIGURES 83 – 88 ).

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 View FIGURES 83 – 88 ).

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 View FIGURES 83 – 88 ).

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.

UFMG

Universidade Federal de Minas Gerais

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Corinnidae

Genus

Corinna

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