Actinopus vilhena, 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 : 84-86

publication ID

https://doi.org/ 10.11646/megataxa.2.1.1

DOI

https://doi.org/10.5281/zenodo.5655589

persistent identifier

https://treatment.plazi.org/id/0975136A-FFDE-CE08-FF77-F875DFFB3B22

treatment provided by

Plazi

scientific name

Actinopus vilhena
status

sp. nov.

Actinopus vilhena   sp. nov.

Figs 73–75 View FIGURE 73 View FIGURE 74 View FIGURE 75 , Map 5 View MAP 5

Type material. Holotype male from [12° 44’ S 60° 07’ W], Vilhena, Rondônia, Brazil , ix.1999, M. Carvalho leg. ( IBSP 114440 View Materials ) GoogleMaps   . Paratype: BRAZIL. Mato Grosso do Sul: Corumbá, [19° 00’ S 57° 39’ W], 1♂ ( IBSP 110559 View Materials ) GoogleMaps   .

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

Diagnosis. Male resemble those of A. nattereri   ( Figs 63 A View FIGURE 63 , 67 E View FIGURE 67 ), A. itapitocai   ( Fig. 79 A View FIGURE 79 ), A. itaqui   ( Fig. 89 A View FIGURE 89 ) and A. caxiuana   ( Fig. 98 A View FIGURE 98 ) by the bluish-gray coloration on the dorsal abdomen ( Fig. 73 A View FIGURE 73 ); it resembles those of A. nattereri   ( Fig. 37 View FIGURE 37 A–D), A. harveyi   ( Fig. 78 View FIGURE 78 A–C), A. itapitocai   ( Fig. 83 View FIGURE 83 A–C), A. xingu   ( Fig. 94 View FIGURE 94 A–C) and A. utinga   ( Fig. 103 View FIGURE 103 A–C) by BTA displaced dorsally in relation to a middle longitudinal line along the prolateral tegular surface ( Fig. 75 A View FIGURE 75 ); they resemble those of A. nattereri   , A. xingu   and A. utinga   by the keels contiguous, close to each other, as seen in prolateral view ( Fig. 75 A View FIGURE 75 ). The male resembles those of A. harveyi   , A. itapitocai   , A. itaqui   ( Fig. 91 View FIGURE 91 A–C), A. xingu   and A. utinga   by PA continuous to PI ( Fig. 75 A View FIGURE 75 ) and differ from those of all other species of the group nattereri by the non-overlapping keels and by the elongated, thin tegulum ( Fig. 75 View FIGURE 75 A–C).

MALE (IBSP 114440): Total length 17.38; Carapace, long 6.12; wide 5.62. Carapace anterior part tapering, posterior part rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 73 B View FIGURE 73 ). Without bristles between AME-clypeus, between ALE–ALP, and wih short 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. 73 C View FIGURE 73 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 73 View FIGURE 73 E–F). Chelicerae with 4–9 denticles along prolateral row of teeth. Prolateral row five megateeth. Retrolateral row with five megateeth and two denticles between three distal and two basal megateeth ( Fig. 73 D View FIGURE 73 ). Patella and tibia III with distal crown of welldeveloped thorns, not interrupted in middle ( Fig. 74 View FIGURE 74 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 74 A, C View FIGURE 74 ). Tibia IV without spines on dorsal surface ( Fig. 74 D View FIGURE 74 ). Ventral pseudoscopulae occupying 30% 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 dark brown; abdomen gray, hirsute ( Fig. 73 A View FIGURE 73 ). Eyes: Diameters: PME 0.24, PLE 0.44, ALE 0.56, AME 0.36; MOQ: Length 1.24, front width 3.32, back width 2.92; Interdistances: PME–PME 1.76, PLE–PME 0.28, AME–AME 0.24, ALE–AME 0.92, ALE–PLE 1.24, AME–PME 0.52. Ocular area: OAL 6.25, OAW 4.37, and IF 4. Body: Clypeus: 0.37; Fovea: 2.62; Labium: long 1.25; wide 1.25; Chelicerae: long 3.5; wide 2.12; Sternum: long 6.37; wide 4.5. Abdomen: long 7.5; wide 5. Leg measurements: I: Fe 7/ Pa 2.87/ Ti 3.87/ Me 5/ Ta 2.5/ total 21.25. II: 6.5/ 3.12/ 3.75/ 5/ 2.75/ 21.12. III: 5.25/ 3/ 2.87/ 5.12/ 2.87/ 19.12. IV: 7.12/ 3.25/ 5.87/ 6.12/ 3/ 25.37. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-1-1, d0, p0, r0; Me v1- 1-3, d0, p0, r3-6-2; ta v0-6-2 d0, p0-0-2, r0. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v2-1-3, d0, p5-5-0, r0-1-3; ta v1-2-3, d0, p3-4-6, r1-3-6. III—Fe v0, d0, p0, r0; Pa v0-0-1, d3-4-18, p2-0-4, r0-0-2; ti v0-0-5, d1-0-13, p0-0-4, r0-5-3; Me v1-1-5, d2-0-0, p2-0-0, r0-1- 3; ta v0, d0, p0-3-3, r0-2-2; IV—Fe v0, d0, p0, r0; Pa v0- 1-2, d13-6-0, p2-1-0, r0; ti v0-0-3, d0, p0, r0; Me v2-2-3, d0, p0, r0; ta v0, d0, p0-1-9, r0-3-2. Palp: PA developed; thin, flattened embolus with three keels (PAc, PI and PS), equally spaced, without overlapping. serrated area. PA contiguous to PI in prolateral view. BTA well developed, displaced dorsally in relation to middle longitudinal line along prolateral tegular surface ( Fig. 75 View FIGURE 75 A–C).

Distribution. BRAZIL. Rondônia: Vilhena. Mato Grosso do Sul: Corumbá ( Map 5 View MAP 5 ).