Taxonomic revision of the species group rubripes of Corinna Koch, 1842 (Araneae; Corinnidae)
Author
Rodrigues, Bruno V. B.
Author
Bonaldo, Alexandre B.
text
Zootaxa
2014
3815
4
451
493
journal article
45467
10.11646/zootaxa.3815.4.1
9efef314-3f5b-49f4-a836-8a85824bdc4b
1175-5326
252676
C2E5AE3F-EA1A-43AA-9337-803F9A1BB7C9
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
).
FIGURES 83–88.
Corinna balacobaco
n. sp.
, male: (83) palp, ventral; (84) same, retrolateral; female: (85) epigynum, ventral; (86) same, dorsal.
Corinna vilanovae
n. sp.
, male: (87) palp, ventral; (88) same, retrolateral. Scale bar = 0.5 mm.
FIGURE 89.
Known distribution records of
Corinna balacobaco
n. sp.
, and
C. vilanovae
n. sp.
in Southeastern Brazil.
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.