Actinopus urucui sp. nov.

Figs 163–165, Map 9

Type material. Holotype male from 7º 41’ 41.3” S 44º 26’ 30.2”W, Fazenda Uni„o, topo da chapada, 40km de Uruçuí, Uruçuí, Piauí, Brazil, 21–26.x.2007, F. M. Oliveira-Neto leg. (MPEG 13206) . Paratypes: BRAZIL. Piauí: Uruçuí, 40 km de Uruçuí, topo da chapada, Fazenda Uni„o, 7º 41’ 41.3” S 44º 26’ 30.2” W, 1♂, 21–26.x.2007, F. M. Oliveira-Neto leg. (MPEG 11666) ; Estaç„o Ecológica de Uruçuí-Una, 08º 52’ 55” S 44º 57’ W, 2♂, 19–29.i.2001, G. G. Martingelli col. (MZSP 21553) ; Caracol, Parque Nacional da Serra das Confusıes, Plote PPBio Semiárido, 9° 13’ 32” S 43° 27’ 47” W, 1♂ 1J, 08–16.xii.2010, L. S. Carvalho et al. leg. (CHNUFPI 239) ; 1♂, 13.xii.2010, L. S. Carvalho et al. leg. (CHNUFPI 172); Caatinga Arbustiva, 9° 13’ 16” S 43° 28’ 57” W, 1♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 177) ; 09–15.xii.2010, L. S. Carvalho et al. leg. (CHNUFPI 168, 175); 3♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 186); 6♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 185); [09° 13’ S 43° 29’ W], 1♂ 1J (MPEG 22271); Plote PPBio Semiárido, 9° 13’ 16” S 43° 29’ 21” W, 1♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 8, 9, 15, 17, 19, 22, 26, 167, 169, 170, 171, 173, 174, 176, 190, 191, 198, 201, 240, 241, 242); 2♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 1, 3, 7, 10, 18, 21, 179, 180, 187, 192, 197, 199, 200); 08–16.xii.2010, L. S. Carvalho et al. leg. (CHNUFPI 235); 3♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 5, 11, 181, 188, 189, 193, 195, 203); 4♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 16, 20, 184); 4♂ 1J, X.2006, P. R. R. Silva et al. leg. (CHNUFPI 14, 238); 5♂ 1J, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 196); 6♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 12, 13); 11♂, x.2006, P. R. R. Silva et al. leg. (CHNUFPI 11, 1♂ removed for SEM); Área de Enclave, 9° 13’ 12” S 43° 29’ 27” O, 09–15.xii.2010, L. S. Carvalho et al. leg. (CHNUFPI 178) .

Etymology. The specific name is a noun in apposition from the type locality name.

Diagnosis. Males of Actinopus urucui differ from A. parafundulus (Fig. 162 A–C) by the leg metatarsi and tarsi paler than other articles; shorter tegulum; presence of three keels (PAc, PS and PI) on copulatory bulb; and a smaller PA (Fig. 165 A–C).

MALE (MPEG 13206): Total length 9.38; Carapace, long 4.63; wide 3.88. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved (Fig. 163 B). With short an weak bristles between AME-clypeus, between ALE–ALP, between posterior eyes-fovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others (Fig. 163 C). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically (Fig. 163 E–F). Chelicerae with eight denticles along prolateral row of teeth. Prolateral row with four megateeth and one basal tooth. Retrolateral row with six megateeth (Fig. 163 D). Patella and tibia III with distal crown of well-developed thorns, on patella III interrupted in middle and on tibia III not interrupted in middle (Fig. 164 A–B). Patellae III and IV with spines on prolaterodorsal face (Fig. 164 A, C). Tibia IV without spines on dorsal surface (Fig. 164 D). Ventral pseudoscopulae occupying 10% of tarsus I, 40% of II and 100% of III and IV. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles; On tarsi III and IV, compact. Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae pale brown; metatarsi and tarsi of legs yellowish brown, paler than other articles; Abdomen pale gray (Fig. 163 A). Eyes: Diameters: PME 0.2, PLE 0.2, ALE 0.28, AME 0.24; MOQ: Length 0.68, front width 2.12, back width 1.68; Interdistances: PME–PME 1.2, PLE–PME 0.12, AME–AME 0.16, ALE–AME 1.2, ALE–PLE 0.4, AME–PME 0.36. Ocular area: OAL 2.62, OAW 2.5, and IF 1.75. Body: Clypeus: 0.12; Fovea: 1.12; Labium: long 1; wide 0.87; Chelicerae: long 2.37; wide 1.25; Sternum: long 3; wide 2; Abdomen: long 4.5; wide 3.25. Leg measurements: I: Fe 4.62/ Pa 2/ Ti 3.12/ Me 4.5/ Ta 2.5/ total 16.75. II: 4.62/ 2/ 3.37/ 4.5/ 2.62/ 17.12. III: 4.12/ 2.12/ 2.62/ 5.12/ 2.62/ 16.62. IV: 5.62/ 2.25/ 4.75/ 4.37/ 2.87/ 19.87. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-1-3, d0, p0, r0; Me v5-7-6, d0, p3-4-3, r3-4-2; ta v4-6-5, d0, p1-1-2, r0. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-4-3, d0, p0, r4-6-2; Me v4-4-3, d0, p1-4-4, r4-6-3; ta v1-2-3, d0, p1-1-3, r2-3-4. III—Fe v0, d0, p0, r0; Pa v0, d5-5-18, p0- 0-1, r0-0-1; ti v1-1-2, d1-0-16, p0-0-10, r1-2-6; Me v2- 2-4, d2-3-1, p2-3-2, r0-3-6; ta v0, d0, p0, r1-6-1; IV—Fe v0, d0, p0, r0; Pa v0, d17-11-2, p0, r0; ti v0-3-3, d0, p0- 1-0, r0; Me v3-4-7, d0, p1-1-3, r0-0-1; ta v0, d0, p0-3-4, r0-0-2. Palp: PA well developed, pointed. Embolus with three keels (PAc, PI and PS). BTA developed and placed medially on prolateral tegular surface; PA continuous to PAc; Embolar base thin (Fig. 165 A–C).

Distribution. BRAZIL. Piauí: Uruçuí, and Caracol (Map 9).