Corinna ziriguidum, 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 : 466-469

Corinna ziriguidum n. sp.

Figs. 6–7 , 9–10, 16 , 24 , 26–27 , 45–46 , 49

Type material. Male holotype from Torre da Telepar, Curitiba, [25°25'42.08"S 49°16'23.71"W] Paraná, Brazil, 01.IV.1987, J.G. Kastelic, deposited in MCN (17198). Paratypes: Brazil. Rio de Janeiro: Petropólis [22°30'16.70"S 43°10'56.38"W], 1 male ( MNRJ 704); Paraná: [Guaratuba, 25°43'35.67"S 48°56'56.19"W] (Usina Hidrelétrica de Guaricana), 1 male, 27–31.I.1986, S.R. Malkowiski ( MHCI); Paranaguá (Praia Grande, Ilha do Mel), [25°30'42.00"S 48°20'20.00"W], 1 male, 08.I.1989, R. Dutra (MCN 20553).

Etymology. From Brazilian Portuguese, the specific name is a noun in apposition from an onomatopoeia imitating the sounds of percussion instruments used in samba. This word appears in the lyrics of several samba tunes and is also used to qualify the skills of samba players or dancers, as synonym of expertise.

Diagnosis. Males of Corinna ziriguidum n. sp. resemble those of C. telecoteco n. sp. by the presence of a small median projection on prolateral surface of RTA and tegular process inserted closely to the embolar base, but differs by the course of reservoir in ventral view, with FR1 ample, reaching the retroapical region of tegulum and by the small median process on the prolateral surface of the RTA directed prolateraly ( Figs. 45–46 ).

Description. Male (holotype). Carapace dark reddish brown, chelicerae black, endites and labium red with posterior extremity lightened, sternum brown, leg I brown, legs II, III and IV dark yellow, posterior femora, tibiae and patellae with dark spots; dorsum of abdomen gray with dorsal scutum extending to the median region, ventrally light gray. Total length 8.8. Carapace 4.4 long; 3.5 wide; 2.5 high. Clypeus 0.4 high. Abdomen 4.25 long; 2.75 wide. Eyes: anterior row 1.7, posterior row 2.0. MOQ: 0.65 long, 0.55 anterior wide, 0.53 posterior wide. Eyes diameters and interdistances: AME 0.2; ALE 0.18; PME 0.18; PLE 0.15; AME–AME 0.25; AME–ALE 0.32; PME–PME 0.3; PME–PLE 0.55; ALE–PLE 0.16. Chelicerae 2.2 long; 4 retromarginal teeth and 3 promarginal teeth. Sternum 2.1 long; 1.8 wide. Leg measurements: femur I 3.5/ patella 1.5/ tibia 3.2/ metatarsus 2.4/ tarsus 1.5/ total 12.6; II 3.1/ 1.4/ 2.5/ 2.5/ 1.4/ 10.9; III 2.5/ 1.2/ 1.8/ 2.2/ 1.05/ 8.75; IV 3.3/ 1.4/ 3.1/ 3.0/ 1.0/ 11.8. Leg formula 1423. Leg spination: I—femur d1-0-1, p0-0-1; tibia v2-2 -2-2; metatarsus vp1-1-0, vr1-0-1. II—femur d1- 0-1, p0-0-1; tibia vr-1-1-1; metatarsus vp1-1-0, vr1-0-1. III—femur d1-1-1, p0-1-1, r0-0-1; tibia vp1-1-0, vr1-1-0, r1-0-1; metatarsus p0-1-0, r0-1-0, v2-1 p-1. IV—femur d1-1-1, r0-0-1; tibia r1-0-1, vp1-1-0; metatarsus r0-1-0, v2- 1 p-1. Palp: femur with two posterior dorsal spines; T without projection, course of reservoir in ventral view with a broad first loop; E filiform partly covered by apical groove of C ( Figs. 45–46 ). Female. Unknown.

Variation. Length (4 males): total 7.8–9.5, carapace 3.9–4.7, femur I 3.5–3.9. Distribution. Rio de Janeiro and Paraná, Brazil.

Other material examined. None

Figures

FIGURE 49. Known distribution of Corinna telecoteco n. sp., C. escalvada n. sp. and C. ziriguidum n. sp. in Southeastern and Southern Brazil.

FIGURES 1 – 8. Corinna aechmea n. sp., male carapace: (1) dorsal; (2) frontal; (3) eyes, frontal; (4) eyes, dorsal; (5) granulations on cephalic region, dorsal. Corinna ziriguidum n. sp., male, carapace: (6) frontal; (7) lateral. Corinna maracas n. sp., female, carapace: (8) lateral.

FIGURES 9 – 16. Corinna ziriguidum n. sp., male: (9) chelicerae, frontal; (10) chelicerae, lateral. Corinna aechmea n. sp., male: (11) chelicerae, fang; (12) chelicerae, teeth. Corinna maracas n. sp., female: (13) chelicerae, lateral; (14) chelicerae, ventral; (15) sternum, ventral. Corinna ziriguidum n. sp., male: (16) endites and labium, ventral.

FIGURES 17 – 24. Corinna demersa n. sp., male: (17) thricobothria on RTA, retrolateral. Corinna aechmea n. sp., male, tarsus I: (18) thricobothria; (19) thricobothria base; (20) tarsal organ; (21) thricobothria and tarsal organ; (22) thricobotrhial cluster; (23) scopula. Corinna ziriguidum n. sp., male, metatarsus IV: (24) cluster of ventral distal stout setae.

FIGURES 25 – 32. Corinna maracas n. sp., female: (25) palpal claw. Corinna ziriguidum n. sp., male, tarsus I: (26) claws, dorsal; (27) claws, lateral. Corinna demersa n. sp., female: (28) tarsus I, claw, lateral; (29) abdomen, lateral; (30) abdominal setae, lateral. Corinna aechmea n. sp., male, abdomen (31) lateral setae; (32) feathery setae.

FIGURES 43 – 48. Corinna spp., male palp. Corinna telecoteco n. sp., (43) ventral; (44) retrolateral. Corinna ziriguidum n. sp.: (45) ventral; (46) retrolateral. Corinna escalvada n. sp.: (47) ventral; (48) retrolateral. Scale bar = 0.5 mm. Abbreviations: C—Conductor; E—Embolus; FR 1 — First fold of reservoir; ppRTA—Prolateral process of Retrolateral tibial apophysis; RTA—Retrolateral tibial apophysis; T—Tegulum; TPC—Tegular process of Corinna.