Catanduba araguaia, Yamamoto, Flávio U., Lucas, Sylvia M. & Brescovit, Antonio D., 2012

Yamamoto, Flávio U., Lucas, Sylvia M. & Brescovit, Antonio D., 2012, Catanduba, a new Theraphosinae spider genus from Central Brazil (Araneae, Theraphosidae), Zootaxa 3172, pp. 1-19 : 13

Catanduba araguaia sp. nov.

Figs 6 A–D

Type-material. Holotype: male from São Félix do Araguaia , Mato Grosso, Brazil, (11°36'36"S; 50°39'36"W) XII/ 1972, I. Frasceschini col., deposited in IBSP 2605.

Etymology The species epithet is a noun in apposition taken from type locality.

Diagnosis Males of Catanduba araguaia sp. nov. differ from those of other species by the presence of an auxiliary keel under PIK with a pointed apical edge, as C. piauiensis sp. nov. ( Figs 6 A–C). Differ C. piuaiensis sp. nov. by the presence of the curved apical portion of the metatarsus I basal nodule ( Fig 6 D).

Description. Male (Holotype). Color in alcohol: carapace and legs dark brown. Sternum and coxae brown. Abdomen dorsally dark gray with four gray stripes extending to lateral sides and ventrally light brown. Urticating hairs of type III. Total length, without chelicera, 17.28. Carapace: length 8.32; width 7.12. Eye tubercle: length 1.08; width 1.41. Eyes size: AME 0.40, ALE 0.39, PME 0.19, PLE 0.33. Labium: length 0.98; width 1.56. Sternum: length 4.48; width 3.44. Basal segment of chelicerae with row of 11 teeth on prolateral margin and group of 13 small teeth concentrated on basal third. Labium with 19 cuspules. Endites with ca. 107 cuspules. Palp: femur 4.24/ patella 2.72/ tibia 3.68/ cymbium 1.28/ total 11.92. Leg I: femur 7.28/ patella 4.24/ tibia 4.72/ metatarsus 4.88/ tarsus 3.52/ total 24.64. II: 6.56/ 3.68/ 4.64/ 5.12/ 3.68/ 23.68. III: 5.68/ 3.04/ 3.84/ 5.36/ 3.52/ 21.44. IV: 7.44/ 3.44/ 5.44/ 7.44/ 4.16/ 27.92. Spinnerets: basal segment 1.75; medium 1.19; apical 1.59. Spination: Palp: femur d0-0-1p, tibia d0-p1-0, v0-1p-2p; Leg I: femur d0-0-1p, tibia v2-2 -0-1ap, p1-0-1, metatarsus v0-0-1ap, p0-1- 0; II: femur d0-0-1p, tibia v3-2 -0-3ap, p1-0-1, metatarsus v1-1 -0-2ap, p1-0-1; III: femur d0-0-2, tibia v2-3 -0-2ap, p1-0-1, r1-0-1, metatarsus v2-2 -p1-1ap, p1-1-1, r0-1- 1. IV: femur d0-1r-1r, tibia v2-3 -0-3ap, p1-0-1, r1-0-1, metatarsus v2-2 -p1-3ap, p1-1-1, r1-1-1. Scopula: Metatarsus: I 0.69 of total length scopulated, II with 0.58, III with 0.54 and IV with 0.31. Tarsus: I–III undivided, IV by 3–4 rows of stronger setae. Palpal bulb with conspicuous PIK and PSK. An additional keel under PIK, with pointed end. Thin embolus with tooth emerging from PIK with bifid point. Digitiform apophysis present ( Figs 6 A–C). Tibial apophysis formed by two branches with distinct bases: prolateral smaller, with retrolateral spine; retrolateral larger. Metatarsus I with strong basal triangular nodule with curved tip and flexes between the tibial apophysis branches, touching their median portion ( Figs 6 D).

Female. Unknown.

Distribution. Known only from the type locality ( Fig. 10 ).

Figures

FIGURE 6. Catanduba araguaia sp. nov.: (A – C) Left palpal bulb: (A) prolateral view; (B) retrolateral view; (C) dorsal view. (D) Male left leg I, tibial apophysis, ventral view. Scale bar = 1 mm.

FIGURE 10. Distribution map of Catanduba gen. nov. species.