Tonton matodentro, Passanha, Victor, Cizauskas, Igor & Brescovit, Antonio D., 2019

Passanha, Victor, Cizauskas, Igor & Brescovit, Antonio D., 2019, A new genus of Micromygalinae (Araneae, Microstigmatidae) from Brazil, with transfer of Masteriaemboaba Pedroso, Baptista & Bertani, 2015 and description of six new species, ZooKeys 814, pp. 1-32 : 10-13

Tonton matodentro sp. n. Figures 7, 8, 13

Types.

Male holotype from Cave SERP 124, Conceição do Mato Dentro, Minas Gerais, Brazil, A. Koken leg., deposited in IBSP 196238. Female paratype from Cave RF 52, 655021mE/ 7795051mN, Barão de Cocais, Minas Gerais, Brazil, deposited in IBSP 196277.

Other material examined.

BRASIL. Minas Gerais: Morro do Pilar, Cave SERP_0056 (19°5'33"S, 43°20'42"W), Am. 89, 1♀ 1 imm., 23.VII.2013 (IBSP 196234); Cave SERP_0004 (19°6'14"S, 43°19'58"W), Am. 71, 1♀ 1imm., 26.VII.2013 (IBSP 196235); Cave SERP_0032 (19°2'16"S, 43°23'12"W), Am. 129, 1♀, 06.VII.2013 (IBSP 196236); Cave SERP_0010 (19°2'54"S, 43°23'9"W), Am. 50, 2♀ 1 imm., 30.VII.2013 (IBSP 196237), all collected by A. Koken; Cave Gruta MP-07 (19°15'28"S, 43°22'33"W), Am. 356, 1♀, 2013, A. Koken leg. (IBSP 196245); Conceição do Mato Dentro, Cave SERP_0100 (19°3'1"S, 43°24'11"W), Am. 607, 1♂, 1♀, 03.XII.2013 (IBSP 196239); Cave SERP_0195 (19°5'57"S, 43°20'24"W), Am. 604, 1♀, 03.XII.2013 (IBSP 196240); Cave SERP_0183 (19°5'33"S, 43°20'45"W), Am. 605, 1♀, 22.I.2014 (IBSP 196241); Cave SERP 0033, Am. 614, 1♀, 14.XII.2013 (IBSP 196242); Cave SERP_0135 (19°2'42"S, 43°23'21"W), Am. 616, 1♀, 1 imm., 04.XII.2013 (IBSP 196243), all collected by A. Koken; Cave MP 14 (19°8'14"S, 43°24'36"W), Am. 434, 1♀, 13-17.II.2012 (IBSP 196244); Cave ASS_08, Abrigo Taboão (18°54'17"S, 43°27'15"W), Am. 05, 1♂, 15.XII.2010-14.I.2011 (IBSP 196246); Cave ASS 01 (ex Cave 13) (18°54'21"S, 43°25'48"W), Am. 40, 1♀ 1 imm., 15.XII.2010-14.I.2011 (IBSP 196247), all collected by R. Bessi et. al.; Cave CMN-06 (19°0'6"S, 43°24'30"W), Am. 289, 1 imm., 12. III– 02.IV.2014 (IBSP 196248); Cave CSF 05 (ex Cave PT 140) (18°58'34"S, 43°23'55"W), Am. 213, 1♀, 12. III– 02.IV.2014 (IBSP 196249); Cave CSF 21 (18°59'26"S, 43°23'34"W), Am. 551, 2 imm., 12. III– 02.IV.2014 (IBSP 196250); Cave CSF 05 (ex Cave PT 140) (18°58'34"S, 43°23'55"W), Am. 214, 3♀ 1 imm., 12. III– 02.IV.2014 (IBSP 196251); Cave CSF 21 (18°59'26"S, 43°23'34"W), Am. 553, 1♀ 1 imm., 12. III– 02.IV.2014 (IBSP 196252); Cave CSS-68 (18°56'34"S, 43°24'43"W), Am. 186, 1♀, 12. III– 02.IV.2014 (IBSP 196253); Cave CMN-22 (18°59'39"S, 43°24'27"W), Am. 312, 1♀, 12. III– 02.IV.2014 (IBSP 196254); Cave CSF 27 (18°59'20"S, 43°24'1"W), Am. 354, 1♀, 12. III– 02.IV.2014 (IBSP 196255); Cave CSF 24 (18°59'30"S, 43°23'51"W), Am. 563, 2♀, 12. III– 02.IV.2014 (IBSP 196256); Cave CSF 14 (18°57'15"S, 43°24'7"W), Am. 510, 1♀, 1 imm., 12. III– 02.IV.2014 (IBSP 196257); Cave CSF 05 (ex Cave PT 140) (18°58'34"S, 43°23'55"W), Am. 479, 2♀, 23. VI– 12.VII.2014 (IBSP 196258; detached epigynum); Cave CSF 05 (ex Cave PT 140) (18°58'34"S, 43°23'55"W), Am. 477, 3♀, 1 imm., 23. VI– 12.VII.2014 (IBSP 196259); Cave CSF 24 (18°59'30"S, 43°23'51"W), Am. 342, 1♀, 23. VI– 12.VII.2014 (IBSP 196260); Cave CSF 36 (18°59'35"S, 43°23'44"W), Am. 591, 1♀ 1 imm., 23. VI– 12.VII.2014 (IBSP 196261); Cave CSF 08 (ex Caverna PT 34) (18°59'30"S, 43°23'52"W), Am. 341, 1♀, 12. III– 02.IV.2014 (IBSP 196262); Cave CSF 14 (18°57'15"S, 43°24'7"W), Am. 516, 2♀, 12. III– 02.IV.2014 (IBSP 196263); Cave CSF 16 (18°57'32"S, 43°24'6"W), Am. 530, 1♀, 12. III– 02.IV.2014 (IBSP 196264); Cave CMN-07 (19°0'9"S, 43°24'33"W), Am. 438, 1♀, 23. VI– 12.VII.2014 (IBSP 196265); Cave CMN-22 (18°59'39"S, 43°24'27"W), Am. 313, 1♀, 12. III– 02.IV.2014 (IBSP 196266); Cave CSF 05 (ex Cave PT 140) (18°58'34"S, 43°23'55"W), Am. 478, 1♀ 1 imm., 23. VI– 12.VII.2014 (IBSP 196267); Cave CSF_50 (18°59'17"S, 43°23'54"W), Am. 983, 1♀, 12-30.I.2015 (IBSP 197186); Cave ASF 03 (ex Abrigo PT 31) (18°59'54"S, 43°23'35"W), Am. 989, 1♀, 12-30.I.2015 (IBSP 197188), all collected by Equipe Carste et.al.; Serra do Sapo, Cave CSS 03 (ex Cave 17) (18°55'2"S, 43°25'42"W), Am. 20, 1♂, 15.XII.2010-14.I.2011 (IBSP 198501); Cave CSS 08 (ex Cave 26) (18°55'37"S, 43°25'2"W), Am. 69, 1 imm., 15.XII.2010-14.I.2011, R. Bessi et al. (IBSP 198502); Cave CSS 04 (ex Cave 18) (18°55'2"S, 43°25'42"W), Am. 194, 1♀, 15.XII.2010-14.I.2011 (IBSP 198505); Cave ASS 07 (ex Cave 32) (18°56'40"S, 43°24'24"W), Am. 82, 1♂, 15.XII.2010-14.I.2011 (IBSP 198503); Cave CSS 13 (ex Cave 33) (18°56'40"S, 43°24'23"W), Am. 93, 1♂, 15.XII.2010-14.I.2011 (IBSP 198504); Cave CSS 03 (ex Cave 17) (18°55'2"S, 43°25'42"W), Am. 320, 2♀, 15.XII.2010-14.I.2011 (IBSP 198506), all collected by R. Bessi et al.; Cave SERP_112, Am. 158, 1♀, 29.XI.2013, L.G.S. Soares leg. (IBSP 184868); Mariana, Cave FN-018 (20°12'26"S, 43°26'18"W), Am. 34, 1♀, 26.X.2012 (IBSP 189192); Cave FN, Am. 25, 1♂, 09.XII.2012 (IBSP 189190); Cave FN, Am. 29, 1♂, 17.X.2012 (IBSP 189191); Cave FN, Am. 01, 1♀ 1 imm., 29.X.2012 (IBSP 189181); Cave FN-017 (20°12'23"S, 43°26'16"W), Am. 02, 1♀ 5 imm., 31.X.2012 (IBSP 189182), all collected by BioEspeleo Cons. Amb. leg.; Barão de Cocais, Cave RF-032 (19°55'42"S, 43°30'29"W), Am. 32, 1♀, 21.III.2009, R. Andrade et al. (IBSP 196268); Cave RF-059 (19°56'3"S, 43°31'58"W), Am. 33, 1 imm., 10-21.VII.2009, (IBSP 196272); Cave RF-025 (19°55'27"S, 43°29'58"W), Am. 26, 1♀, 10-21.VII.2009 (IBSP 196273); Cave RF-058 (19°56'5"S, 43°31'32"W), Am. 34, 2♀, 10-21.VII.2009 (IBSP 196275); Cave RF-027 (19°55'28"S, 43°29'57"W), Am. 24, 1♀, 10-21.VII.2009 (IBSP 196276); Cave RF-032 (19°55'42"S, 43°30'29"W), Am. 31, 4♀ 3 imm., 10-21.III.2009 (IBSP 196278); Cave RF-049 (19°55'46"S, 43°30'47"W), Am. 27, 5♀ 3 imm., 10-21.III.2009 (IBSP 196282); Cave RF-042 (19°55'43"S, 43°30'34"W), Am.38, 1♀ 3 imm., 10-21.III.2009 (IBSP 196283; MEV; pictures), all collected by R. Andrade et al.; Cave RF-043 (19°55'43"S, 43°30'34"W), Am. 86, 1 imm., 10-21.III.2009, (IBSP 196270); Cave RF-009 (19°55'8"S, 43°29'14"W), Am. 514, 2♀, 22.VI.2009 (IBSP 196269); Cave RF-049 (19°55'46"S, 43°30'47"W), Am. 519, 1♀, 22.VI.2009 (IBSP 196271); Cave RF-032 (19°55'42"S, 43°30'29"W), Am. 517, 3♀ 1 imm., 22. VI– 03.VII.2009 (IBSP 196279); Cave RF-036 (19°55'42"S, 43°30'31"W), Am. 516, 2♀, 22. VI– 03.VII.2009 (IBSP 196280); Cave RF-048 (19°55'46"S, 43°30'47"W), Am. 521, 2♀, 22. VI– 03.VII.2009 (IBSP 196281); Cave RF-042 (19°55'43"S, 43°30'34"W), Am. 515, 1♀, 22.VI.2009 (IBSP 196274); Cave RF-045 (19°55'44"S, 43°30'34"W), Am. 518, 1♀, 22. VI– 03.VII.2009 (IBSP 196284); Cave RF-069 (19°56'23"S, 43°32'4"W); Am. 875, 1♀, 09-13.XII.2009 (IBSP 182821); Cave RF-069 (19°56'23"S, 43°32'4"W), Am. 781, 2♀, 20-25.VIII.2009 (IBSP 182818); Cave RF-080 (19°56'25"S, 43°32'39"W), Am. 791, 2♀, 20-25.VIII.2009 (IBSP 182819); Cave RF-063 (19°56'16"S, 43°32'1"W), Am. 913, 1♀, 09-13.XII.2009 (IBSP 182823), all collected by R. Bessi et al.; Mina do Baú, Cave_011 (19°57'22"S, 43°37'42"W), Am. 03, 2♂, 28.X.2016, F. Bondezan leg. (IBSP 198500); Moeda, Cave VL-37 (20°17'56"S, 43°56'46"W), Am. 84, 3♀, 29. III– 03.IV.2012, J. Mascarenhas leg. (IBSP 180709); Itabirito, Cave VL-17 (20°20'30"S, 43°56'10"W), Am. 02, 1♂ 1♀, 4-25.X.2012 (IBSP 180937); Cave VL-48 (20°17'52"S, 43 °56'35"W), Am. 62, 1♀, 3-6.X.2011 (IBSP 180707); Cave VL-10 (20°17'7"S, 43°56'43"W), Am. 101, 3♀, 29. III– 03.IV.2012 (IBSP 180710); Cave VL-50 (20°17'56"S, 43°56'27"W), Am. 69, 1♀, 29. III– 03.IV.2012 (IBSP 180708); Cave VL-48 (20°17'52"S, 43°56'35"W), Am. 59, 1♀, 3-6.X.2011 (IBSP 180938); Cave VL-48 (20°17'52"S, 43°56'35"W), Am. 60, 2♀, 3-6.X.2011 (IBSP 180706); Cave VL-52 (20°17'57"S, 43°56'27"W); Am. 11, 1♀, 3-6.X.2011 (IBSP 180705); Cave VL-51 (20°17'56"S, 43°56'27"W), Am. 5, 1♀, 3-6.X.2011 (IBSP 180704), Cave VL-25 (20°20'9"S, 43°56'5"W), Am. 104, 2♀, 07-10.V.2013 (IBSP 180853); Cave VL-25 (20°20'9"S, 43°56'5"W), Am. 105, 1♀, 07-10.V.2013 (IBSP 180854), all collected by J. Mascarenhas leg.; Cave CAP2_0020 (20°8'55"S, 43°39'22"W), Am. 1409, 1♀, 15-31.III.2016 (IBSP 198525); Cave CAP2_0020 (20°8'55"S, 43°39'22"W), Am. 1645, 1♀, 14. VII– 18.IX.2016 (IBSP 198530), all collected by Equipe Carste leg.; Santa Bárbara, Serra do Gandarela, Cave GAND_0038 (20°2'30"S, 43°39'9"W), Am. 1831, 1♂, 14. VII– 18.IX.2016 (IBSP 198531); Cave SG-029 (ex Cave GAND_0003) (20°6'14"S, 43°38'12"W), Am. 745, 1♀, 10. II– 20.III.2014 (IBSP 198507); Cave GAND_0095 (20°3'56"S, 43°40'12"W), Am. 1011, 1♀, 10. II– 20.III.2014 (IBSP 198509); Cave GAND_0033 (20°5'24"S, 43°39'9"W), Am. 1800, 1♀, 14. VII– 18.IX.2016 (IBSP 198510); Cave GAND 0065 (20°4'22"S, 43°39'31"W), Am. 1898, 1♂, 15-31.III.2016 (IBSP 198516); Cave GAND_0037 (20°2'29"S, 43°39'8"W), Am. 2221, 1♀, 15-31.III.2016 (IBSP 198517); Cave GAND_0116 (20°4'11"S, 43°40'10"W), Am. 1510, 1♀, 15-31.III.2016 (IBSP 198518); Cave SG-029 (ex Cave GAND_0003) (20°6'14"S, 43°38'12"W), Am. 746, 1♀, 10. II– 20.III.2014 (IBSP 198512); Cave SG-048 (20°5'9"S, 43°40'25"W), Am. 1133, 1♀, 10. II– 20.III.2014 (IBSP 198513); Cave GAND_0051 (20°2'55"S, 43°40'9"W), Am. 1151, 2♀, 10. II– 20.III.2014 (IBSP 198520); Cave GAND_0033 (20°5'24"S, 43°39'9"W), Am. 1801, 1♀, 14. VII– 18.IX.2016 (IBSP 198521); Cave GAND_0013 (20°5'43"S, 43°40'14"W), Am. 787, 1♀, 10. II– 20.III.2014 (IBSP 198523); Cave SG-043 (20°5'48"S, 43°40'28"W), Am. 2240, 1♀, 14. VII– 18.IX.2016 (IBSP 198524); Cave GAND_0116 (20°4'11"S, 43°40'10"W), Am. 2111, 1♀, 14. VII– 18.IX.2016 (IBSP 198526); Cave GAND_0114 (20°4'6"S, 43°40'14"W), Am. 1275, 1♀, 10. II– 20.III.2014 (IBSP 198528); Cave GAND_0063 (20°4'29"S, 43°39'26"W), Am. 1298, 1♀, 15-31.III.2016 (IBSP 198529); Cave GAND_0116 (20°4'11"S, 43°40'10"W), Am. 2110, 1♀, 14. VII– 18.IX.2016 (IBSP 198532), all collected by Equipe Carste leg.; Rio Acima, Serra do Gandarela, Cave SG-013 (ex Cave GAND_0015) (20°5'39"S, 43°41'6"W), Am. 794, 4♀, 10. II– 20.III.2014 (IBSP 198522); Cave SG-016 (20°5'40"S, 43°40'51"W), Am. 2199, 1♂, 14. VII– 18.IX.2016 (IBSP 198511); Cave SG-051 (20°5'50"S, 43°40'43"W), Am. 1156, 1♀, 10. II– 20.III.2014 (IBSP 198514); Cave SG-051 (20°5'50"S, 43°40'43"W), Am. 1154, 1♀ 2 imm., 10. II– 20.III.2014 (IBSP 198515); Cave GAND_82 (20°5'40"S, 43°40'49"W), Am. 1302, 1♀, 15-31.III.2016 (IBSP 198508); Cave SG-012 (ex Cave GAND_0102) (20°5'38"S, 43°41'5"W), Am. 1017, 1♀, 10. II– 20.III.2014 (IBSP 198519); Cave SG-012 (ex Cave GAND_0102) (20°5'38"S, 43°41'5"W), Am. 2039, 2♀, 14. VII– 18.IX.2016 (IBSP 198527), all collected by Equipe Carste leg.

Etymology.

The specific epithet is a noun taken in apposition and refers to the type locality.

Diagnosis.

Males of Tonton matodentro sp. n. are similar to those of other species in the genus by the piriform bulb, differing by the apex of embolus, which is enlarged and slightly flattened (Fig. 7 C–G). Females resemble T. emboaba by the similar internal lobe of the spermathecae, but differ by the elongated external lobe (Fig. 8D).

Description.

Male (holotype). Coloration: carapace and legs whitish, abdomen yellowish. Total length 1.95. Carapace 0.95 long, 0.65 wide. Abdomen 1.0 long. Fovea 0.13. Clypeus 0.03. Eyes: six, the lateral eyes are vestigial, PME 0.02, lateral eyes are not visible to be measured (Fig. 5A). Labium 0.1 long, 0.15 wide. Sternum 0.45 wide, 0.58 long. Serrula with 4-5 rows of teeth clumped in series (Fig. 7B). Palp: femur 0.54/ patella 0.29/ tibia 0.41/ tarsus 0.28/ total 1.52. Leg I: femur 0.73/ patella 0.39/ tibia 0.36/ metatarsus 0.34/ tarsus 0.37/ total 2.19 used on SEM pictures; II femur 0.73/ patella 0.39/ tibia 0.36/ metatarsus 0.34/ tarsus 0.37/ total 2.19; III 0.63/ 0.33/ 0.45/ 0.39/ 0.38/ 2.18; IV 0.78/ 0.39/ 0.59/ 0.59/ 0.45/ 2.8. Leg formula 4123. Spination: palp tibia p3, tarsus d5ap; leg II tibia v4-3ap, p1, metatarsus v2-2ap; III patella p1, r2, tibia d1, v4-2ap, p1, r1, metatarsus d2, v2-3ap, p2, r1; IV patella v1, p2, r2, tibia d1, v3-3ap, p3, r3, metatarsus d3, v2-3ap, p2, r1. Tibia I with three apical ventral spines. Palpal tibia two times the size of cymbium, with the bulb resting in a ventral depression. Cymbium as long as wide with a short prolateral lobe, with five apical spines (Fig. 7D, E). Bulb piriform, embolus elongated with the same size of tegulum, with strong medial curvature, and apex rounded (Fig. 7 C–G). PLS basal, medial and apical segments, 0.22, 0.18, 0.16 long.

Female (paratype). Coloration as in male. Total length 2.18. Carapace 1.0 long, 0.74 wide. Abdomen 1.18 long. Fovea 0.07. Clypeus 0.03. Eyes: six, the lateral eyes vestigial, ALE 0.03, PME 0.01, PLE 0.07 (Fig. 8A). Labium 0.1 long, 0.16 wide. Sternum 0.57 wide, 0.58 long. Serrula as in male (Fig. 8B). Palp: femur 0.52/ patella 0.29/ tibia 0.32/ tarsus 0.33/ total 1.46. Leg I femur 0.64/ patella 0.39/ tibia 0.46/ metatarsus 0.32/ tarsus 0.29/ total 2.10; II 0.59/ 0.34/ 0.38/ 0.30/ 0.26/ 1.87; III 0.47/ 0.26/ 0.33/ 0.36/ 0.33/ 1.75; IV 0.65/ 0.36/ 0.52/ 0.46/ 0.37/ 2.36. Leg formula 4123. Spination: palp tibia v1-2ap, tarsus v2; leg I tibia v1-2ap, metatarsus v2-2ap; II patella p1, tibia v3-3ap, p3, metatarsus v2-3ap, p1; III patella p2, r1, tibia d1, v3-3ap, p1, r1, metatarsus d3, v3-3ap, p1; IV patella p1, tibia d1, v3-3ap, p2, r1, metatarsus d2, v3-3ap, p2, r2. Genitalia with internal lobe with large and rounded apex, external lobe connected to the basis with elongated duct and discrete globous apex, wide spermathecae basis, glands in both lobes, scattered irregularly (Fig. 8D, left side collapsed). PLS: basal, medial and apical segments, 0.22, 0.18, 0.16 long.

Natural history.

The specimens of Tonton matodentro sp. n. were collected in the caves in the Quadrilátero Ferrífero Iron Region, on the floor. This species is classified as troglobite.

Distribution.

Morro do Pilar and Conceição de Mato Dentro, in the state of Minas Gerais (Fig. 13).