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

Corinna demersa View in CoL n. sp.

Figs. 17 View FIGURES 17 – 24 , 28–30 View FIGURES 25 – 32 , 39 View FIGURES 37 – 40 , 90–93, 98–104

Type material. Male holotype from Ilha do Cardoso [ 25°7'54.00"S 47°57'59.00"W], Cananéia, São Paulo, Brazil, II.2008, G.C.O. Piccoli & G.Q. Romero, deposited in MPEG (20254). Paratypes: Brazil. Bahia: Maracás [ 13°25'41.94"S 40°26'16.03"W] (Fazenda do Mato), 1 female, 16.II.1967, U. Caramachi et al. ( MNRJ 06435); Espírito Santo: Guarapari (Restinga de Setiba), 20°36'0"S 40°25'0"W, 1 male and 2 females, 28–04.IX–X.2009, T.

Gonçalves Souza ( UFMG 7188); Rio de Janeiro: Cabo Frio [ 22°52'43.26"S 42° 1'11.55"W] (Figueira), 1 male, 2.I.2003, ( MNRJ 06436); São Paulo: São Paulo (Ilhabela, Ilha do Búzios) [ 23°48'21.84"S 45° 8'41.18"W], 1 male and 1 female, X.1963, exped. DZ ( MZUSP 12620); Cananéia ( Ilha do Cardoso) [ 25°7'54.00"S 47°57'59.00"W], 1 females, II.2008, G.C.O. Piccoli & G.Q. Romero ( MPEG 20255); 4 females ( MPEG 20256); Rio Grande do Sul: Torres [ 29°20'20.81"S 49°43'37.32"W], 1 female, 09.X.1972, G. Carvalho (MCN 748).

Etymology. The specific name is a Latin adjective meaning submerged and refers to the microhabitat in which the holotype was collected, immersed in the water reservoir of a bromeliad.

Diagnosis. Males of Corinna demersa n. sp. resemble those of C. maracas n. sp. by the RTA with a ventroapical incision, absence of tegular process and presence of a well-delimited unsclerotized area in the distal retrolateral margin of conductor, but differ by the RTA’s ventro-apical incision deeper and by the thin, long embolus, partially covered by distal fold of conductor (Figs. 90–91, 99, 101–102); females resemble those of C. maracas n. sp. by the triangular copulatory opening, arising between the closely placed secondary spermathecae, but differ by the long, inverted T-shaped copulatory ducts visible ventrally and by the epigynal surface not grooved (Figs. 92–93, 103).

Description. Male ( holotype). Carapace and chelicerae black, endites and labium black with posterior end paler, sternum dark red, leg with coxae, trochanter and femur dark brown, patella, tibia, metatarsus and tarsus dark yellow; dorsum of abdomen dark gray with scutum dorsal in distal third, ventrally brown, with large median gray band in longitudinal axis. Total length 11.1. Carapace 5.4 long; 5.1 wide; 2.2 high. Clypeus 0.4 high. Abdomen 5.6 long; 3.6 wide. Eyes: anterior row 2.0, posterior row 2.4. MOQ: 0.77 long, 0.92 anterior wide, 0.9 posterior wide. Eye diameters and interdistances: AME 0.3; ALE 0.22; PME 0.26; PLE 0.24; AME–AME 0.24; AME–ALE 0.38; PME–PME 0.34; PME–PLE 0.56; ALE–PLE 0.18. Chelicerae 3.0 long; 5 retromarginal teeth and 3 promarginal teeth. Sternum 2.9 long; 2.5 wide. Leg measurements: femur I 5.1/ patella 2.4/ tibia 5.1/ metatarsus 4.1/ tarsus 1.8/ total 18.5; II 4.6/ 2.3/ 4.1/ 3.9/ 1.5/ 16.4; III 4.0/ 1.9/ 3.4/ 3.7/ 1.5/ 14.5; IV 5.2/ 2.0/ 4.9/ 5.5/ 1.8/ 19.4. Leg formula 4123. Leg spination: I—femur d1-1-0, p0-0-1; tibia v2-1 p-2-2; metatarsus v2-2 -0. II—femur d1-1-0, p0-0-1; tibia v2-1 p-2-2-0; metatarsus v2-2 -0. III—femur d1-1-1, p0-1-2, r0-1-0; tibia v2-2 -0, r0-1-1, p0-1-0; metatarsus p0-1-0, r1-1-0, v2-2 -1. IV—femur d1-1-1, r0-0-1, p0-0-1; tibia r0-1-1, v2-2 -0; metatarsus p0-1-0, r1-1-0, v2-2 -1. Palp: femur with two posterior dorsal spines; T without projection; TPC absent; E thin and long, partially covered by conductor (Figs. 90–91, 99, 101–102).

Female ( paratype MPEG 20255). Coloration as in male. Total length 16.0. Carapace 6.3 long; 5.8 wide; 3.3 high. Clypeus 0.4 high. Abdomen 9.3 long; 5.9 wide. Eyes: anterior row 2.45, posterior row 2.8. MOQ: 0.88 long, 0.92 anterior wide, 0.94 posterior wide. Eye diameters and interdistances: AME 0.32; ALE 0.24; PME 0.26; PLE 0.26; AME–AME 0.3; AME–ALE 0.44; PME–PME 0.42; PME–PLE 0.7; ALE–PLE 0.18. Chelicerae 3.9 long. Sternum 3.4 long; 2.9 wide. Leg measurements: femur I 5.3/ patella 2.5/ tibia 5.2/ metatarsus 4.4/ tarsus 1.9/ total 19.3; II 4.8/ 2.3/ 4.2/ 4.0/ 1.6/ 16.9; III 4.3/ 2.1/ 4.0/ 3.7/ 1.6/ 15.7; IV 5.4/ 2.1/ 4.9/ 5.7/ 1.9/ 20.0. Leg formula 4123. Leg spination: I—femur d1-1-0, p0-0-1; tibia v2-1 p-2-1p-2; metatarsus v2-2 -0. II—femur d1-1-0, p0-0-1; tibia v1 p-2-2-2; metatarsus v2-2 -0. III—femur d1-1-1, r0-1-0, p0-1-1; tibia v2-2 -0, r0-1-1, p0-1-0; metatarsus p1- 1-0, r1-1-0, v2-2 -1. IV—femur d1-1-1, r0-0-1, p0-0-1; tibia r0-1-1, v2-2 -0; metatarsus p1-1-0, r0-1-0, v2-2 -1. Epigynum: epigynal plate not projected posteriolly; CO anterior, leveled with apices of SS; CO conspicuous; SS big, close to each other; PVP poor developed, linked at basal third of SS and enveloping partially the PS (Figs. 92–93, 103).

Variation. Length ( 7 males): total 11.1–14.1; carapace 5.3–6.4; femur I 4.6–5,6; ( 10 females) total 13.0–16.1; carapace 5.3–6.6; femur I 4.5–5.5.

Distribution. Bahia, Espírito Santo, Rio de Janeiro, São Paulo and Rio Grande do Sul, Brazil.

Other material examined. Brazil. Bahia: Nova Viçosa, [ 17°52'19.76"S 39°23'8.12"W], 1 male and 1 female, 23.III.1993, C.B. Castro & P.S. Young ( MNRJ). Espírito Santo: Santa Tereza (Estrada Santa Tereza - Fundão), [ 19°56'13.23"S 40°28'44.03"W], 1 female, N.D. Santos and L.F. Reis ( MNRJ); Presidente Kennedy (Praia das Neves), 21°14'10,3"S 40°58'33"W, 1 female, 5–8.X.2009, T. Gonçalves Souza ( UFMG 8182). Rio de Janeiro: Vila da Penha, [ 22°50'39.08"S 43°18'45.23"W], 2 males and 1 female, N.O. dos Santos ( MNRJ); Distrito Federal [actual Rio de Janeiro city 22°54'12.74"S 43°12'34.51"W], 2 females, 22.VI. 1939, A. Passarelli and A. Carvalho ( MNRJ); Maricá, 1 male and 1 female, ( MNRJ); Rio de Janeiro, (Recreio dos Bandeirantes), [ 23°1'36.74"S 43°28'9.81"W], 2 female ( MNRJ 06446); Itauna, 1 female, 1.I.2003 ( MNRJ 06437). São Paulo: Cananéia ( Ilha do Cardoso), [ 25°7'54.00"S 47°57'59.00"W], 1 male, IV.2010, G.C. Piccoli ( MPEG 20252); 1 male, G.Q. Romero ( MPEG 20253).