Corinna hyalina, 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 : 480

Corinna hyalina n. sp.

Figs. 78–79 , 82

Type material. Male holotype from Parque Nacional de Itatiaia, Itatiaia, Rio de Janeiro, Brazil, 22º27'17"S 44º36'29.8"W, 15–22. II.2011, G.H.F. Azevedo et al., deposited in UFMG (9701). Paratypes: Brazil. Minas Gerais: Santana do Riacho (Parque Nacional da Serra do Cipó), 19°21'S 43°31'W, 1 male, 10–14.II.2001, E.S.S. Álvares & E.O. Machado ( UFMG 1078).

Etymology. The specific name is an adjective referring to the small hyaline structure on the apex of the retrolateral tibial apophysis.

Diagnosis. Males of Corinna hyalina n. sp. resemble those of C. vesperata n. sp. by the retrolaterally enlarged RTA but differ by presenting a small hyaline process on the apex of the RTA; embolus very short and thin, conductor relatively small and tegular process very close to base of embolus ( Figs. 78–79 ).

Description. Carapace and chelicerae black, endites red with posterior end paler; labium black with posterior end paler; sternum brown, leg I brown, legs II, III, IV yellow except metatarsus and tarsus, dark yellow; dorsum of abdomen gray with dorsal scutum occupying distal third, ventrally pale gray. Total length: 10.0. Carapace 4.3 long; 4.1 wide; 2.5 high. Clypeus 0.43 high. Abdomen 5.6 long; 4.0 wide. Eyes: anterior row 1.8, posterior row 2.2. MOQ: 0.66 long, 0.71 anterior wide, 0.73 posterior wide. Eye diameters and interdistances: AME 0.25; ALE 0.21; PME 0.21; PLE 0.23; AME–AME 0.26; AME–ALE 0.32; PME–PME 0.32; PME–PLE 0.56; ALE–PLE 0.14. Chelicerae 2.7 long; 4 retromarginal teeth and 3 promarginal teeth. Sternum 2.5 long; 2.15 wide. Leg measurements: femur I 4.55/ patella 2.0/ tibia 4.2/ metatarsus 3.7/ tarsus 2.05/ total 16.5; II 4.2/ 2.0/ 3.7/ 3.5/ 1.9/ 15.3; III 3.2/ 1.7/ 2.35/ 2.95/ 1.3/ 11.5; IV 4.2/ 2.0/ 3.9/ 3.9/ 1.4/ 15.4. Leg formula 1243. Leg spination: I—femur d1-0-1, p0-0-1; tibia v1 p-2-2-2-2-2; metatarsus v2 -0-0. II—femur d1-0-1, p0-0-1; tibia v2 p-1p-2-2; metatarsus v2- 2 -0. III—femur d1-1-0, p0-0-2; tibia v2-2 -0; metatarsus p0-1-0, r0-1-0, v2-2 -1. IV—femur d1-1-0, r0-0-1; tibia r0- 0-1, v1 p-0-1p; metatarsus v1 r-1p-1. Palp: femur with two posterior dorsal spines; RTA with rounded prolateral region and tapered ventral projection; T without projection; TPC placed very close to base of embolus; E filiform, short, partially covered by distal groove of conductor; C small and subquadrangular ( Figs. 78–79 ).

Female: Unknown.

Variation. Length (2 males): total 9.1–10.0; carapace 4.3–4.4; femur I 4.1–4.55.

Distribution. Minas Gerais and Rio de Janeiro, Brazil.

Other material examined. None

Figures

FIGURE 82. Known distribution of Corinna vesperata n. sp., C. hyalina n. sp. and C. tranquilla n. sp. in Southeastern Brazil.

FIGURES 74 – 81. Corinna vesperata n. sp., male: (74) palp, ventral; (75) same, retrolateral; female: (76) epigynum, ventral; (77) same, dorsal. Corinna hyalina n. sp., male: (78) palp, ventral; (79) same, retrolateral. Corinna tranquilla n. sp., female: (80) epigynum, ventral; (81) same, dorsal. Scale bar = 0.5 mm.