Figs 101–103, Map 5
Type material. Holotype male from 1° 25’ 29.38” S 48° 26’ 16.86” W, Parque Ambiental de Belém (Utinga), Belém, Pará, Brazil, ii.2010, G. H. F. Azevedo et al. leg. (UFMG 9918).
Etymology. The specific name is a noun in apposition from the type locality name, Utinga.
Diagnosis. Males of A. utinga resemble those of A. nattereri (Fig. 67 A–C), A. vilhena (Fig. 75 A–C), A. harveyi (Fig. 78 A–C), A. itapitocai (Fig. 83 A–C), and A. xingu (Fig. 94 A–C) by the BTA displaced dorsally on the prolateral tegular surface (Fig. 103 A); they resemble those of A. rufipes (Fig. 72 A–C), A. nattereri (Fig. 88 A–C), A. itaqui (Fig. 91 A–C), A. mesa (Fig. 97 A–C) and A. caxiuana (Fig. 100 A–C) by the well-developed PA, rebordered. They differ from those of other species in the group nattereri by the palpal tibia and cymbium being paler than other articles; the PI prominent, almost reaching the border of embolus on dorsal view, and longer than other keels (Fig. 103 A–C).
MALE (UFMG 9918): Total length 11.87; Carapace, long 5.37; wide 5.12. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved (Fig. 101 B). With row of short bristles on clypeus border. Without bristles 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. 101 C). Rastellum protuberant, inverted Vshaped, hirsute, without spines apically (Fig. 101 E–F). Chelicerae with eight denticles along prolateral row of teeth. Prolateral row with six megateeth. Retrolateral row with five megateeth (Fig. 101 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 and recurved (Fig. 102 A–B). Patellae III and IV with spines on prolaterodorsal face (Fig. 102 A, C). Tibia IV without spines on dorsal surface (Fig. 102 D). Ventral pseudoscopulae occupying 50% of tarsus I, 70% 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 dark brown; tibia of palp and cymbium paler than other articles. Abdomen gray (Fig. 101 A). Eyes: Diameters: PME 0.16, PLE 0.24, ALE 0.4, AME 0.32; MOQ: Length 1, front width 2.52, back width 2.36; Interdistances: PME–PME 1.48, PLE–PME 0.2, AME–AME 0.2, ALE–AME 0.64, ALE–PLE 0.28, AME–PME 0.48. Ocular area: OAL 3.5, OAW 3.12, and IF 2.25. Body: Clypeus: 0.12; Fovea: 2; Labium: long 1.25; wide 1; Chelicerae: long 3.25; wide 1.62; Sternum: long 3.62; wide 3. Abdomen: long 6; wide 4.25. Leg measurements: I: Fe 5.37/ Pa 2.12/ Ti 3.25/ Me 4.25/ Ta 2.25/ total 17.25. II: 5/ 2.25/ 2.5/ 4/ 2.25/ 16. III: 3.62/ 2.37/ 2.25/ 3.87/ 2.37/ 14.5. IV: 4.62/ 2.5/ 4.12/ 4.25/ 2.62/ 18.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-4- 6, d0, p0, r0; Me v3-2-3, d0, p2-2-3, r3-5-4; ta v0-2-1, d0, p1-2-2, r2-2-6. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-3-3, d0, p0, r1-7-7; Me v2-2-3, d0, p1-2-2, r1-5-5; ta v0-1-3, d0, p2-3-2, r1-2-5. III—Fe v0, d0, p0, r0; Pa v0, d3-6-18, p2-2-4, r0-0-2; ti v0-0-3, d1-0-13, p0-0-3, r0-0-3; Me v1-1-2, d0-0-2, p1-0-0, r1-3-5; ta v0, d0, p0-0-2, r0-2- 2; IV—Fe v0, d0, p0, r0; Pa v0, d17-11-4, p0, r0; ti v0-0- 2, d0, p0, r0; Me v0-1-2, d0-0-1, p0-1-0, r0-0-2; ta v0, d0, p0-4-7, r0-0-5. Palp: PA well-developed and rebordered, continuous to PI. Embolus with three keels (PAc, PI and PS). BTA developed, displaced dorsally in relation to middle longitudinal line along prolateral tegular surface; serrated area absent; embolar bases thinner, elongated (Fig. 103 A–C).
Distribution. BRAZIL. Pará: Belém (Map 5).