Actinopus ducke, sp. nov.

Actinopus ducke sp. nov.

Figs 33–35, Map 4

Type material. Holotype male from 2° 58’ 5.9952” S 59° 55’ 49.9836” W, Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brazil, 1993, Wollscheid & Curd leg. (MCN 24987). Paratypes: BRAZIL. Amazonas: Manaus, Reserva do Km 41, 02º 26’ S 59º 46’ W, 1♂, 05.viii.1996, G. Gascon leg. (IBSP 110498); Reserva Florestal Adolpho Ducke, 2° 58’ 5.9952” S 59° 55’ 49.9836” W, 3♂, viii–ix.1993, Wollscheid & Curd leg. (INPA 3512); 15♂, ix.2010 (INPA 6124).

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

Diagnosis. Males of A. ducke resemble those of A. pinhao (Fig. 32 A–C), A. hirsutus (Fig. 38 A–C), A. jaboticatubas (Fig. 41 A–C) and A. confusus (Fig. 44 A–C) by the serrated area distal to PAc (Fig. 32 A–B); PA continuous to PAc (Fig. 35 A–C), except in A. hirsutus (Fig. 38 A–C). They resemble A. paranensis (Fig. 115 A–C), A. hirsutus and A. jaboticatubas by the wider tegulum with robust BTA, placed medially on prolateral tegular surface (Fig. 35 A–C). Males differ from those of A. pinhao and A. hirsutus by legs with few bristles and from all other species of the group by the presence of slots above PI, on prolateral tegular surface and pigmentation spots above PA on retrolateral view (Fig. 35 A–C).

MALE (MCN 24987): Total length 19.25; Carapace, long 8.375; wide 7.5. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved almost without interdistance AME–ALE (Fig. 33 B). With short bristles between AME-clypeus. With one long bristle between ALE–ALP and many short and weak bristles between posterior eyes-fovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others (Fig. 33 C). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically (Fig. 33 E–F). Chelicerae with six denticles along prolateral row of teeth. Prolateral row with five megateeth. Retrolateral row with five megateeth and two denticles between three basal megateeth (Fig. 34 D). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle (Fig. 34 A–B). Patella IV with spines on prolaterodorsal face (Fig. 34 C). Tibia IV without spines on dorsal surface (Fig. 34 D). Ventral pseudoscopulae occupying 20% of tarsus I, 50% 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, metatarsi and tarsi reddish brown; tibia of palp paler than other articles; Abdomen pale brown (Fig. 33A). Eyes: Diameters: PME 0.28, PLE 0.32, ALE 0.52, AME 0.4; MOQ: Length 1.28, front width 2.84, back width 2.72; Interdistances: PME–PME 1.72, PLE–PME 0.02,AME–AME 0.24, ALE–AME 0.64, ALE–PLE 0.56, AME–PME 0.52. Ocular area: OAL 5, OAW 4.75, and IF 2.25. Body: Clypeus: 0.37; Fovea: 2.62; Labium: long 1.87; wide 1.37; Chelicerae: long 3.75; wide 1.87; Sternum: long 5.25; wide 4.12. Abdomen: long 9.12; wide 7.37. Leg measurements: I: Fe 7.75/ Pa 3.37/ Ti 5/ Me 5.25/ Ta 30.5/ total 51.87. II: 7.25/ 3.37/ 4.75/ 5.37/ 2.87/ 23.62. III: 6.62/ 3.62/ 3.75/ 5.25/ 3.12/ 22.37. IV: 9.12/ 3.87/ 7.37/ 6.37/ 3.5/ 30.25. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-1, d0, p0, r0-0-2; Me v4-7-5, d0, p0-0-1, r4-4-7; ta v0-2-6, d0, p0-3-4, r4-8-9. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-4-3, d0, p0, r0-2-6; Me v7- 13-15, d0, p0-0-3, r4-7-8; ta v3-7-8, d0, p2-8-9, r4-6-8. III—Fe v0, d0, p0, r0; Pa v0, d6-8-25, p0-0-2, r0-0-5; ti v0, d1-0-10, p0-0-4, r0-0-3; Me v11-6-5, d0, p1-4-5, r1- 4-5; ta v0, d0, p6-7-6, r7-9-4; IV—Fe v0, d0, p0, r0; Pa v0, d8-6-2, p3-3-1 r0; ti v0, d0, p0, r0; Me v5-6-5, d0, p0-1-5, r1-1-4; ta v0, d0, p5-5-5, r2-5-7. Palp: PA poorly developed, embolus with three keels (PAc, PI and PS). Prolateral tegulum with slots above PI. BTA developed and placed medially on prolateral tegular surface; serrated area developed, positioned distal to prolateral accessory keel and next to base of next to base of embolus; embolar bases wider (Fig. 35 A–C).

Distribution. BRAZIL. Amazonas: Manaus (Map 4).