Tonton queca, 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 : 7-10

Tonton queca sp. n. Figures 5, 6, 13

Types.

Holotype male and paratype female from Nova Lima, Cave MS-150 (20°12'6"S, 43°58'1"W), Am. 66, 1♂ 1♀, 28.X.2005, R.L. Ferreira leg., deposited in IBSP 198537.

Other material examined.

BRAZIL. Minas Gerais: Itabirito, Cave VL-23 (20°20'10"S, 43°56'1"W), Am. 149, 1♂ 3 imm., 3-20.XI.2007, R. Andrade leg. (IBSP 97956; pictures); Cave VL-12 (20°17'47"S, 43°56'48"W), Am. 119, 3♀, 3-20.XI.2007, R. Andrade leg. (IBSP 97963, pictures); Cave VL-25 (20°20'9"S, 43°56'5"W), Am. 142, 5♀ 1 imm., 3-20.XI.2007, R. Andrade leg. (IBSP 97955); Cave VL-35 (20°18'29"S, 43°56'33"W), Am. 161, 1♀, 3-20.XI.2007, R. Andrade leg. (IBSP 97945); Mina do Pico, Cave (20°13'15"S, 43°52'56"W), Am. 34, 1♀, 31.V.2013, BioEspeleo Cons. Amb. leg. (IBSP 196191), external collect, in the forest; Mina do Pico Cave (20°13'15"S, 43°52'56"W), Am. 33, 5♀ 5 imm., 10.VI.2013, BioEspeleo Cons. Amb. leg. (IBSP 196191), external collect, in the forest; Mina do Pico Cave (20°13'15"S, 43°52'56"W), Am. 28, 2♀, 05.VI.2013, BioEspeleo Cons. Amb. leg. (IBSP 196191), external collect, in the forest; Mina do Pico Cave (20°13'15"S, 43°52'56"W), Am. 30, 1♀ 1 imm., 5.VI.2013, BioEspeleo Cons. Amb. leg. (IBSP 196191), external collect, in the forest; Itabirito, Cave MP-004 (20°13'22"S, 43°51'13"W), Am. 64, 1♀, 31.VIII.2005, (IBSP 198533); Cave MP-008 (20°12'39"S, 43°51'12"W), Am. 63, 5♀, 08.IX.2005 (IBSP 198538); Cave MP-009 (20°12'39"S, 43°51'15"W), Am. 65, 1♀, 01.IX.2005 (IBSP 198539); Cave MP-014 (20°13'41"S, 43°51'47"W), Am. 67, 1♀, 30.VIII.2005 (IBSP 198540); Cave MP-005 (20°13'21"S, 43°51'14"W), Am. 60, 1♀, 01.IX.2005 (IBSP 198541); Cave MP-007 (20°12'41"S, 43°51'12"W), Am. 69, 1♀, 01.IX.2005 (IBSP 198542); Cave MP-011 (20°13'4"S, 43°51'26"W), Am. 68, 2♀, 07.IX.2005 (IBSP 198543), all collected by R.L. Ferreira; Rio Acima, Cave VG-02 (20°9'29"S, 43°49'8"W), Am. 04, 1♀, 29. III– 01.V.2011, R. Andrade & I. Cizauskas et al. leg. (IBSP 196195); Cave VG-02 (20°9'29"S, 43°49'8"W), Am. 157, 1 ♀, 29. III– 01.V.2011, R. Andrade & I. Cizauskas et al. leg. (IBSP 196196); Cave VG-20 (20°7'23"S, 43°54'3"W), Am. 212, 1♀, 29. III– 01.V.2011 (IBSP 196198); Cave VG-20 (20°7'23"S, 43°54'3"W), Am. 58, 2♀, 29. III– 01.V.2011 (IBSP 196201); Cave VG-05 (20°6'5"S, 43°53'10"W), Am. 164, 2♀, 29. III– 01.V.2011 (IBSP 196202); Cave VG-05 (20°6'5"S, 43°53'10"W), Am. 14, 1♀, 29. III– 01.V.2011 (IBSP 196203); Cave VG-29 (20°7'5"S, 43°53'40"W). Am. 262, 1♀, 29. III– 01.V.2011 (IBSP 196204); Cave VG-06 (20°9'30"S, 43°49'8"W), Am. 06, 4♀, 29. III– 01.V.2011 (IBSP 196205), all collected by R. Andrade & I. Cizauskas et al. leg.; Nova Lima, Cave MS-150 (20°12'6"S, 43°58'1"W), Am. 62, 1♀ 1 imm., 04.II.2005, (IBSP 198534); Cave MS-150 (20°12'6"S, 43°58'1"W), Am. 66, 1♂ 5♀ 3 imm., 28.X.2005 (IBSP 198535); Cave MS-150 (20°12'6"S, 43°58'1"W), Am. 66, 1♂, 28.X.2005 (IBSP 198536; SEM), all collected by R.L. Ferreira; Igarapé, Morro do Ipe, Cave_01 (20°6'26"S, 46°11'44"W), Am. 27, 1♀, 23.I.2018, BioEspeleo Cons. Amb. leg. (IBSP 198544).

Etymology.

The specific name refers to queca , a cake of English origin, brought to Nova Lima at the time of gold exploration. It became part of the traditional cuisine, as a dessert in the Christmas period and today considered a material good of the municipality.

Diagnosis.

Specimens of the T. queca sp. n. can be distinguished from other species by the oval bulb and slender embolus with micro-basal projections (Fig. 5B, D). Females resemble T. sapalo sp. n. by having a spermathecae with narrow duct of the internal lobe and rounded apex (Fig. 9H), but differ by the larger base and distinct setae in all internal lobe ducts (Fig. 6D).

Description.

Male (holotype). Coloration: carapace in dorsal and ventral view, 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 5-6 rows of teeth clumped in series (Fig. 5B). Palp: femur 0.53/ patella 0.23/ tibia 0.38/ tarsus 0.25/ total 1.39. Legs I femur 0.76/ patella 0.34/ tibia 0.64/ metatarsus 0.42/ tarsus 0.34/ total 2.5; II 0.63/ 0.32/ 0.5/ 0.35/ 0.32/ 2.12; III 0.65/ 0.29/ 0.45/ 0.5/ 0.39/ 2.28; IV 0.82/ 0.33/ 0.62/ 0.64/ 0.46/ 2.87. Leg formula 4132. Spination: palp: tibia r3, tarsus d4ap; leg I: patella v1, tibia v3-2ap, p1, metatarsus v2-2ap, p1; II: patella v1, tibia v3-2ap, p1, metatarsus v3-2ap, p1; III: patella v2, p2, r1, tibia d1, v3-2ap, p2, r1, metatarsus d2, v1-2ap, p2, r2; IV: patella v2, r1, tibia v3-3ap, p2, r2, metatarsus d2, v1-2ap, p2, r2. Tibia I with two apical ventral spines. Palpal tibia two times the size of cymbium, with the bulb resting in a ventral distal depression. Cymbium as long as wide with a short prolateral lobe, with five apical spines (Fig. 5B, E). Embolus filiform, with the same size of tegulum, with discreet medial curvature, with medial micro protuberances, apex of embolus slightly rounded (Fig. 5B, D–F). PLS: basal, medial and apical segments, 0.21, 0.19, 0.18 long.

Female (paratype). Coloration as in male. Total length 2.14. Carapace 0.84 long, 0.66 wide. Abdomen 1.3 long. Fovea 0.15. Clypeus 0.02. Eyes as in male, ALE 0.07, PME 0.03, PLE 0.06 (Fig. 6A). Labium 0.1 long, 0.2 wide. Sternum 0.5 wide, 0.68 long. Serrula with rows as in male. Palp: femur 0.65/ patella 0.34/ tibia 0.35/ tarsus 0.34/ total 1.68. Leg I femur 0.78/ patella 0.42/ tibia 0.51/ metatarsus 0.38/ tarsus 0.31/ total 2.4; II 0.64/ 0.34/ 0.38/ 0.33/ 0.3/ 1.99; III 0.63/ 0.46/ 0.46/ 0.34/ 0.31/ 2.2; IV 0.78/ 0.47/ 0.55/ 0.51/ 0.42/ 2.73. Leg formula 4132. Spination: palp, tibia v2-3ap, tarsus v2-2-2; leg I tibia v2-2ap, metatarsus v3-2ap; II patella v2, p2, tibia v2-3ap, p3, metatarsus v3-2ap, p1; III patella v2, p1, tibia v2-2ap, p1, metatarsus v3-2ap, p1; IV patella r1, tibia v1-2ap, p1, r2, metatarsus d2, v1-3ap, p2, r3. Genitalia with external lobe connected to the raised basis and glands of both lobes (Fig. 6D). PLS: basal, medial and apical segments, 0.32, 0.23, 0.25 long.

Natural history.

All specimens were collected in the iron caves in the Quadrilátero Ferrífero Iron Region. The specimens were collected on the floor below blocks in aphotic zones of the caves, and they are troglobite species.

Distribution.

Nova Lima, Itabirito, Rio Acima and Igarapé, in the state of Minas Gerais (Fig. 13).