Actinopus utinga, Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020

Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), Megataxa 2 (1), pp. 1-256 : 111-113

publication ID	https://doi.org/10.11646/megataxa.2.1.1
DOI	https://doi.org/10.5281/zenodo.5655607
persistent identifier	https://treatment.plazi.org/id/0975136A-FFE3-CE2D-FCD5-FA8DDE363BBE
treatment provided by	Plazi
scientific name	Actinopus utinga
status	sp. nov.

Treatment

Actinopus utinga View in CoL sp. nov.

Figs 101–103 View FIGURE 101 View FIGURE 102 View FIGURE 103 , Map 5 View 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 View Materials ). GoogleMaps

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 View FIGURE 67 A–C), A. vilhena ( Fig. 75 View FIGURE 75 A–C), A. harveyi ( Fig. 78 View FIGURE 78 A–C), A. itapitocai ( Fig. 83 View FIGURE 83 A–C), and A. xingu ( Fig. 94 View FIGURE 94 A–C) by the BTA displaced dorsally on the prolateral tegular surface ( Fig. 103 A View FIGURE 103 ); they resemble those of A. rufipes ( Fig. 72 View FIGURE 72 A–C), A. nattereri ( Fig. 88 View FIGURE 88 A–C), A. itaqui ( Fig. 91 View FIGURE 91 A–C), A. mesa ( Fig. 97 View FIGURE 97 A–C) and A. caxiuana ( Fig. 100 View FIGURE 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 View FIGURE 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 View FIGURE 101 ). 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 View FIGURE 101 ). Rastellum protuberant, inverted Vshaped, hirsute, without spines apically ( Fig. 101 View FIGURE 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 View FIGURE 101 ). 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 View FIGURE 102 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 102 A, C View FIGURE 102 ). Tibia IV without spines on dorsal surface ( Fig. 102 D View FIGURE 102 ). 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 View FIGURE 101 ). 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 View FIGURE 103 A–C).