Cuacuba mariana, Prete, Pedro H., Cizauskas, Igor & Brescovit, Antonio D., 2018

Prete, Pedro H., Cizauskas, Igor & Brescovit, Antonio D., 2018, Three new species of the spider genus Plato and the new genus Cuacuba from caves of the states of Para and Minas Gerais, Brazil (Araneae, Theridiosomatidae), ZooKeys 753, pp. 107-162 : 138-147

Cuacuba mariana sp. n. Figures 3F, 7, 8, 10, 11, 12, 13, 17

Plato sp.: Pinto-da-Rocha 1995: 74 (now in IBSP 56084).

Types.

Male holotype from Cave SG_07 (20°02'58"S, 43°41'4"W), Santa Bárbara, Minas Gerais, Brazil, 26-30/IX/2011, Equipe Carste, deposited in IBSP 175141. Paratypes: male and female from Cave ICPA_697 (20°22'20"S, 45°36'14"W), Pains, Minas Gerais, Brazil, 26-30/IX/2011, A. P. Bueno et al coll. (MZSP 70925); male from Cave MOC_10 (19°33'6"S, 44°1'11"W), Matozinhos, Minas Gerais, Brazil, 28/ VI– 01/VII/2011, C.A.R. Souza et al. coll. (MPEG 32022); female from Cave MOCN_10 (19°33'19"S, 44°00'56"W), Matozinhos, Minas Gerais, Brazil, 04-15/IV/2011, C.A.R. Souza et al. coll. (MPEG 32021).

Other material examined.

BRAZIL. Minas Gerais: Mirabela, Cave Gruta Vaca Voadora, 1♀, VII/1984, F. Chaimowicz coll. (IBSP 3810); Montes Claros, Cave Lapa Encantada (16°19'48"S, 43°59'24"W), 1♀, X/1985 (IBSP 56084), F. Chaimowicz coll.; Lima Duarte, Cave Gruta dos Manequins, 3♀, X–XI /2000 (IBSP 39768), F. Tulio coll.; Cordisburgo, Cave Morena (19°10'7"S, 44°20'21"W), 1♀, 12/IX/2001 (IBSP 71835), R. L. Ferreira coll.; Mariana, Cave CH_07 (20°14'35"S, 43°31'1"W), 1♂ 5♀, 23-30/IX/2008 (IBSP 145930); Cave CH_17 (20°14'30"S, 43°31'6"W), 1♀, 28-30/IV/2009 (IBSP 145977); Cave CH_18 (20°14'30"S, 43°31'7"W), 1♂ 2♀, 23-30/IX/2008 (IBSP 145988); Cave CH_19 (20°14'32"S, 43°30'59"W), 1♀, 28-30/IV/2009 (IBSP 145994); 4♀, 23-30/IX/2008 (IBSP 145997); Cave CH_20 (20°13'43"S, 43°31'4"W), 2♀, 23-30/IX/2008 (IBSP 146002); Cave CH_21 (20°13'55"S, 43°31'5"W), 1♂ 2♀, 23-30/IX/2008 (IBSP 146009, IBSP 146010); 3♀, 28-30/IV/2009 (IBSP 146012); Cave CH_22 (20°13'55"S, 43°31'5"W), 1♀, 28-30/IV/2009 (IBSP 146023), all collected by F. P. Franco et al.; Cave GS_03 (20°9'16"S, 43°30'58"W), 2♀, 05/I/2011 (IBSP 174909, IBSP 174910); Cave GS_06 (20°10'10"S, 43°31'0"W), 1♀, 16/ I– 11/II/2011 (IBSP 174911); 1♀, 06-16/VI/2011 (IBSP 174912); Cave GS_09 (20°10'10"S, 43°31'0"W), 1♀, 06-16/VI/2011 (IBSP 174913); Cave GS_10 (20°10'6"S, 43°30'57"W), 2♀, 06-16/VI/2011 (IBSP 174914) all collected by R. Bessi et al.; Cave Gruta Furnas I (20°12'36"S, 43°12'36"W), 2♀, IX/2002 (IBSP 39733); 1♀, IX/2002 (IBSP 39734); 1♀, 14/VII/2002 (IBSP 39772), all collected by F. Tulio; Piumhi, Cave ICCA_014 (20°20'44"S, 45°50'53"W), 1♂ (IBSP 181216); Cave ICCA_018 (20°20'44"S, 45°50'54"W), 1♂ 3♀ (IBSP 181201, IBSP 181212, IBSP 181231); Cave ICCA_020 (20°20'44"S, 45°50'56"W), 1♂, 13- 21 /I/2014 (IBSP 181217); Cave ICCA_022 (20°20'42"S, 45°50'55"W), 1♂ 2♀ (IBSP 181227, IBSP 181230); Cave ICCA_026 (20°20'44"S, 45°50'56"W), 1♂ (IBSP 181205); Cave ICCA_035 (20°20'45"S, 45°50'55"W), 1♂ 2♀ (IBSP 181199, IBSP 181229); Cave ICCA_037 (20°20'45"S, 45°50'55"W), 1♀ (IBSP 181226); Cave ICCA_041 (20°20'46"S, 45°50'53"W), 1♂ 2♀, 4-22/XI/2013 (IBSP 181208, IBSP 181233); Cave ICCA_046 (20°20'50"S, 45°50'54"W), 1♀ (IBSP 181200); Cave ICCA_052 (20°20'48"S, 45°50'57"W), 2♀ (IBSP 181228, IBSP 181235); Cave ICCA_053 (20°20'49"S, 45°50'56"W), 1♀ (IBSP 181223); Cave ICCA– 068 (20°20'50"S, 45°50'52"W), 1♀ (IBSP 181237); Cave ICCA_072 (20°20'51"S, 45°50'54"W), 1♂ (IBSP 181209); Cave ICCA– 079 (20°20'52"S, 45°50'52"W), 1♂ 1♀ (IBSP 181220); Cave ICCA_081 (20°20'52"S, 45°50'52"W), 2♀ (IBSP 181211, IBSP 181213); Cave ICCA_082 (20°20'51"S, 45°50'55"W), 1♀ (IBSP 181210); Cave ICCA_103 (20°20'54"S, 45°50'46"W), 1♂ (IBSP 181196); Cave ICCA_129 (20°21'3"S, 45°50'35"W), 3♀, 4-22/XI/2013 (IBSP 181203, IBSP 181219, IBSP 181232); Cave ICCA_139 (20°20'56"S, 45°50'42"W), 1♂ 3♀, 4-22/XI/2013 (IBSP 181198, IBSP 181207, IBSP 181224); Cave ICCA– 141 (20°20'53"S, 45°50'42"W), 2♀ (IBSP 181202); Cave ICCA_142 (20°20'54"S, 45°50'36"W), 1♂ 1♀ (IBSP 181214, IBSP 181236); Cave ICCA_158 (20°20'59"S, 45°50'35"W), 1♀, 13-21/I/2014 (IBSP 181218); Cave ICCA_187 (20°21'3"S, 45°50'34"W), 1♀ (IBSP 181239); Cave ICCA_208 (20°20'59"S, 45°50'41"W), 1♂ (IBSP 181234); Cave ICCA– 209 (20°21'3"S, 45°50'27"W), 1♂ 1♀ (IBSP 181225); Cave ICCA_211 (20°21'2"S, 45°50'27"W), 2♀ (IBSP 181222); Cave ICCA_247 (20°21'3"S, 45°50'23"W), 1♀, 13-21/I/2014 (IBSP 181206); Cave ICCA_353 (20°21'5"S, 45°50'18"W), 1♀ (IBSP 181221); Cave ICCA_355 (20°21'6"S, 45°50'21"W), 1♂ (IBSP 181238); Cave ICCA– 531 (20°20'58"S, 45°50'26"W), 1♂ (IBSP 181215); Cave ICCA_533 (20°20'58"S, 45°50'26"W), 2♀ (IBSP 181195); Cave ICCA_566 (20°20'42"S, 45°50'55"W), 1♀, 13-21/I/2014 (IBSP 181194); Cave ICCA_568 (20°20'50"S, 45°50'56"W), 1♀, 13-21/I/2014 (IBSP 181197); Cave ICCA_574 (20°21'6"S, 45°50'20"W), 1♀ (IBSP 181204), all collected between 4-22/XI/2013 by A. P. Bueno et al.; Pains, Cave Ressurgência da Loca D’Água (20°25'48"S, 45°41'24"W), 9♀, 07/IX/2001 (IBSP 71854, IBSP 71856), P. Gnaspini coll.; Cave Gruta do Topo (20°21'36"S, 45°40'12"W), 1♀, 01/XI/2005 (IBSP 71901) M.E. Bichuette coll.; Cave Gruta Arcaica, 2♀, 25/I/2008 (IBSP 118679); Cave Gruta Sem Fim, 7♂ 10♀, 24-25/I/2008 (IBSP 118670, IBSP 118673, IBSP 118693, IBSP 118682, IBSP 118698, IBSP 118705), E.O. Machado & J.P.P.P. Barbosa coll.; Cave ICPA_031 (20°22'37"S, 45°36'32"W), 1♂ (IBSP 181163); Cave ICPA_041 (20°22'12"S, 45°36'23"W), 1♀ (IBSP 181159); Cave ICPA_144 (20°22'17"S, 45°36'39"W), 2♀, 24-27/IV/2012 (IBSP 174926); 1♀, 28-29/XI/2012 (IBSP 174928); Cave ICPA_146 (20°22'16"S, 45°36'42"W), 1♀, 28-29/XI/2012 (IBSP 174927); Cave ICPA_631 (20°22'25"S, 45°36'16"W), 1♀ (IBSP 181160); Cave ICPA_636 (20°22'14"S, 45°36'10"W), 1♀ (IBSP 181189); Cave ICPA_639 (20°22'14"S, 45°36'7"W), 2♀ (IBSP 181167); Cave ICPA_665 (20°22'25"S, 45°36'17"W), 1♀ (IBSP 181188); Cave ICPA_671 (20°22'15"S, 45°36'18"W), 1♀ (IBSP 181179); Cave ICPA_685 (20°22'39"S, 45°36'29"W), 1♀ (IBSP 181170); Cave ICPA_692 (20°22'11"S, 45°36'17"W), 2♀ (IBSP 181171, IBSP 181184); Cave ICPA_693 (20°22'14"S, 45°36'10"W), 1♀ (IBSP 181191); Cave ICPA_697 (20°22'20"S, 45°36'14"W), 2♀ (IBSP 181172, IBSP 181175); Cave ICPA_699 (20°22'25"S, 45°36'11"W), 3♀(IBSP 181177, IBSP 181175); Cave ICPA_700 (20°22'24"S, 45°36'29"W), 1♂ (IBSP 181193); Cave ICPA_710 (20°22'37"S, 45°36'15"W), 1♂ (IBSP 181161); Cave ICPA_711 (20°22'27"S, 45°36'19"W), 1♀ (IBSP 181176); Cave ICPA_731 (20°22'29"S, 45°36'31"W), 3♀ (IBSP 181162, IBSP 181165); Cave ICPA_731 (20°22'29"S, 45°36'31"W), 1♀ (IBSP 181165); Cave MV_014 (20°22'22"S, 45°36'11"W), 2♀ (IBSP 181185, IBSP 181186); Cave MV_018 (20°22'26"S, 45°36'14"W), 1♂ (IBSP 181180); Cave MV_019 (20°22'27"S, 45°36'14"W), 1♀ (IBSP 181168); Cave MV_025 (20°22'22"S, 45°36'14"W), 1♀ (IBSP 181169); Cave MV_027 (20°22'25"S, 45°36'13"W), 1♀ (IBSP 181187); Cave MV_036 (20°22'24"S, 45°36'11"W), 1♀ (IBSP 181192); Cave MV_037 (20°22'25"S, 45°36'12"W), 1♀ (IBSP 181181); Cave MV– 044 (20°22'17"S, 45°36'9"W), 2♀ (IBSP 181174); Cave MV_090 (20°22'28"S, 45°36'27"W), 1♀ (IBSP 181166); Cave MV_16 (20°22'25"S, 45°36'11"W), 1♀ (IBSP 181190); Cave MV_27 (20°22'25"S, 45°36'13"W), 1♂ (IBSP 181178); Cave MV_33 (20°22'17"S, 45°36'16"W), 2♂ (IBSP 181183); Cave MV_44 (20°22'17"S, 45°36'9"W), 1♀ (IBSP 181164), all collected on 18/ II– 9/III/2013 by A. P. Bueno et al.; Matozinhos, Cave MOC_113/114 (19°33'18"S, 44°1'13"W), 2♀, 04-15/IV/2011 (IBSP 174831, IBSP 174832); Cave MOC_118 (19°32'53"S, 44°1'4"W), 2♀, 04-15/IV/2011 (IBSP 174835, IBSP 174836); Cave MOC_120 (19°33'5"S, 44°1'7"W), 2♀, 04-15/IV/2011 (IBSP 174839); 1♀, 29-30/VIII/2011 (IBSP 174852); Cave MOC_123 (19°33'13"S, 44°1'9"W), 2♀, 04-15/IV/2011 (IBSP 174840); Cave MOC_131 (19°33'2"S, 44°0'49"W), 2♀, 04-15/IV/2011 (IBSP 174833, IBSP 174834); Cave MOC_133 (19°33'3"S, 44°0'49"W), 2♀, 04-15/IV/2011 (IBSP 174841); Cave MOC_135 (19°33'16"S, 44°0'20"W), 2♂ 3♀, 04-15/IV/2011 (IBSP 174842, IBSP 174843, IBSP 174853); Cave MOC_16 (19°33'9"S, 44°1'5"W), 2♀, 08-18/II/2011 (IBSP 174818); Cave MOC_17 (19°33'9"S, 44°1'6"W), 1♀, 08-18/II/2011 (IBSP 174819); Cave MOC_18 (19°33'10"S, 44°1'6"W), 1♀, 08-18/II/2011 (IBSP 174820); Cave MOC_19 (19°33'7"S, 44°1'13"W), 16♀, 08-18/II/2011 (IBSP 174821- IBSP 174825); 1♂ 5♀, 28/ VI– 01/VII/2011 (IBSP 174846- IBSP 174848); Cave MOC_30 (19°33'2"S, 44°1'6"W), 1♂ 1♀, 08-18/II/2011 (IBSP 174829, IBSP 174830); Cave MOC_32 (19°33'12"S, 44°1'4"W), 1♂ 6♀, 08-18/II/2011 (IBSP 174826- IBSP 174828); 4♀, 28/ VI– 01/VII/2011 (IBSP 174849, IBSP 174850); Cave MOC_N8 (19°33'18"S, 44°0'59"W), 3♀, 04-15/IV/2011 (IBSP 174837, IBSP 174838); 1♀, 01-08/VIII/2011 (IBSP 174851), all collected by C. A. R. Souza et al.; Cave Gruta Periperi II (19°31'12"S, 44°3'36"W), 2♀, 26/XI/1992 (IBSP 56071); Cave Gruta do Tombo (19°30'0"S, 44°0'36"W), 1♂ 3♀, 29/XI/1992 (IBSP 56067), F. Chaimowicz coll.; Morro do Pilar, Cave MP_01A (19°9'15"S, 43°24'13"W), 14♀, 12-24/IX/2011 (IBSP 174864- IBSP 174867, IBSP 174869- IBSP 174873); 2♂ 8♀, 28/II/2012 (IBSP 174891- IBSP 174898,); Cave MP_01B (19°9'15"S, 43°24'13"W), 16♀, 28/II/2012 (IBSP 174899- IBSP 174908); 1♂ 9♀, 12-24/IX/2011 (IBSP 174868, IBSP 174874- IBSP 174876, IBSP 174878, IBSP 174879, IBSP 174881); 4♀, 12-24/IX/2011 (IBSP 174877, IBSP 174880); Cave MP_10 (19°9'28"S, 43°23'29"W), 2♀, 13-17/II/2012 (IBSP 174882); Cave MP_13 (19°7'5"S, 43°26'1"W), 4♀, 12-24/IX/2011 (IBSP 174854- IBSP 174856); 1♀, 13-17/II/2012 (IBSP 174883); Cave MP_14 (19°8'15"S, 43°24'19"W), 5♀, 13-17/II/2012 (IBSP 174885- IBSP 174887); 7♀, 12-24/IX/2011 (IBSP 174857- IBSP 174861); Cave MP_18 (19°10'14"S, 43°23'47"W), 1♀, 13-17/II/2012 (IBSP 174888); Cave MP_19 (19°9'45"S, 43°23'29"W), 3♀, 13-17/II/2012 (IBSP 174889); Cave MP_20 (19°10'2"S, 43°23'37"W), 3♀, 12-24/IX/2011 (IBSP 174862, IBSP 174863); Cave MP_21 (19°8'56"S, 43°25'45"W), 1♀, 13-17/II/2012 (IBSP 174890); Santa Barbara, Cave SG_02 (20°2'56"S, 43°40'56"W), 9♀, 05-09/XII/2011 (IBSP 174920- IBSP 174923); 9♀, 26-30/IX/2011 (IBSP 174916- IBSP 174918, IBSP 175225); Cave SG_07 (20°2'58"S, 43°41'4"W), 3♀, 05-09/XII/2011, (IBSP 174924, IBSP 174925), all collected by I. Cizauskas et al.; Cave SPD_38 (20°3'43"S, 43°40'14"W), 1♀, 09-13/I/2012, J. Mascarenhas coll. (IBSP 174915).

Etymology.

The specific name is a feminine noun in apposition and refers to one of the cities where the species is found. This city suffered one of the worst mining accidents in Brazilian history, in 2015.

Diagnosis.

Males of Cuacuba mariana sp. n. differ from C. morrodopilar sp. n. in the distal area of the anterior conductor apophysis with a group of thorns (Fig. 9B, D) and median apophysis without protruding tips (Figs 9A, C, 11D). Females can be distinguished by the conical salient posterior margin of the epigynal plate, with accentuate curvature in the distal region (Fig. 13 A–B).

Description.

Male (holotype IBSP 175141). Cephalothorax yellowish brown. Chelicerae, endites, labium, and sternum red to brown. Legs orange. Abdomen grayish. Total length 2.25. Carapace 0.82 long. Clypeus high 0.26. Sternum 0.47 long, 0.48 wide. Eye measurements: AME 0.07; ALE-PLE: grouped, 0.07 each; PME-PME: separated by diameter of 1 PME (0.06 each). Legs: I femur 0.92/ patella 0.39/ tibia 0.82/ metatarsus 0.64/ tarsus 0.47/ total 3.25. II 0.9/ 0.35/ 0.72/ 0.52/ 0.45/ 2.94. III 0.63/ 0.27/ 0.45/ 0.38/ 0.35/ 2.08. IV 0.75/ 0.3/ 0.59/ 0.43/ 0.34/ 2.41. Palp: short median apophysis (Fig. 11D), anterior conductor apophysis longer and thinner than posterior one (Fig. 11C). Abdomen: 1.4 long.

Female (paratype IBSP 174919). Coloration as in male, except for brown cephalothorax and legs. Total length 3. Carapace 0.94 long. Clypeus high 0.21. Sternum 0.56 long, 0.58 wide. Eye measurements: AME 0.07; ALE-PLE: grouped, 0.07 each; PME-PME: separated by 0.07 (PME: 0.07 each). Legs: I femur 1.16/ patella 0.46/ tibia 0.82/ metatarsus 0.64/ tarsus 0.57/ total 3.65. II 1.15/ 0.45/ 0.81/ 0.59/ 0.55/ 3.55. III 0.68/ 0.32/ 0.52/ 0.43/ 0.44/ 2.39. IV 0.92/ 0.37/ 0.68/ 0.52/ 0.47/ 2.96. Epigynal plate with posterior margin darkened at the tip (Fig. 13A, C). Epigynum with glandular ducts in the basal third of the copulatory ducts, spermathecae connate, and fertilization ducts smaller than spermathecae (Fig. 13 C–D). Abdomen: 2.57 long.

Variation.

Five males: total length 1.8-2.25; carapace 0.82-1; femur I: 0.92-1.2. 8 females: total length 2-3; carapace 0.8-1.15; femur I: 1-1.3.

Distribution.

Found in caves near the Iron Quadrangle, state of Minas Gerais, Brazil (Fig. 17).