Actinopus wallacei F. O. Pickard-Cambridge, 1896

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 : 245-250

publication ID	https://doi.org/ 10.11646/megataxa.2.1.1
DOI	https://doi.org/10.5281/zenodo.5655711
persistent identifier	https://treatment.plazi.org/id/0975136A-FF79-CEA4-FCD5-F878DE1E3D66
treatment provided by	Plazi
scientific name	Actinopus wallacei F. O. Pickard-Cambridge, 1896
status

Treatment

Actinopus wallacei F. O. Pickard-Cambridge, 1896 View in CoL

Figs 221–225 View FIGURE 221 View FIGURE 222 View FIGURE 223 View FIGURE 224 View FIGURE 225 , Map 19 View MAP 19

Actinopus wallacei F. O. Pickard-Cambridge, 1896: 728 View in CoL , pl. 35, fig. 18 31 (holotype ♀, Santarém, Pará, Brazil, NHM, examined); Schiapelli & Gerschman, 1945: 167, pl. I; World Spider Catalog, 2020.

Note. The types were not available for study and for this reason the male is not redescribed here. The females here ascribed to A. wallacei are from Bolivia but present diagnostic characters congruent with the female type, examined through images by Janet Beccaloni ( Figs 223– 224 View FIGURE 223 View FIGURE 224 ).

Diagnosis. Females of Actinopus wallacei differ from all other species represented by females by the reddish-brow pattern widespread on legs, Chelicerae and carapace without larger tone differences. They are similar to those of A. pampulha by the spermathecae shape: two receptacles, each one with 2 or 3 lobes with same height as each other. They differ from those of A. pampulha by the pore distribution reaching reaches 75% of the apical area in each receptacle.

FEMALE (AMNH): Total length 19.12; Carapace, long 6.75; wide 6.87. Carapace anterior part square. Anterior eye row slightly procurved, posterior row recurved. Short and long bristles in three rows between AME-clypeus, one long bristle between PLE–ALE, short and long bristles between posterior eyes-fovea and short and long bristles between lateral eyes-edge of carapace ( Fig. 221 B View FIGURE 221 ). Sternum with eight sigilla fused medially, all sigilla very fused to each other ( Fig. 221 C View FIGURE 221 ). Rastellum protuberant, subquadrate, hirsute, with a row of spines on the edge of rastellum and o lot of spines in dorsal part of rastellum ( Fig. 221 View FIGURE 221 E–F). Chelicerae with denticles along prolateral row of teeth. Prolateral row with eight megateeth and one tooth after the last basal megateeth. Retrolateral row with five megateeth and two teeth between three medial megateeth ( Fig. 221 D View FIGURE 221 ). Patella and tibia III with distal developed crowns of thorns ( Fig. 222 View FIGURE 222 A–B). Patella IV with prolaterodorsal spines along extension of article ( Fig. 222 C View FIGURE 222 ). Tibia IV without spines and with many short and long bristles on surface of article ( Fig. 222 D View FIGURE 222 ). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, Tibia, metatarsi, tarsi and palp reddish brown, and abdomen pale gray ( Fig. 221 A View FIGURE 221 ). 12 labial cuspules, 105 on right maxilla and 99 on left. Eyes: Diameters: PME 0.24 PLE 0.32 ALE 0.4, AME 0.2; MOQ: Length 1.36, front width 3.92, back width 3.56; Interdistances: PME–PME 2.2, PLE–PME 0.28, AME–AME 0.44, ALE–AME 1.36, ALE–PLE 0.72, AME–PME 0.84. Ocular area: OAL 6.5, OAW 4, and IF 3.5. Body: Clypeus: 0.62; Fovea: 3.5; Labium: long 1.75; wide 1.62; Chelicerae: long 4.87; wide 2.87; Sternum: long 5.37; wide 4.25. Abdomen: long 11.25; wide 10. Leg measurements: I: Fe 4,37/ Pa 2.75/ Ti 2.25/ Me 1.75/ Ta 1.62/ total 12.75. II: 4.25/ 2.87/ 1.75/ 2.5/ 1.37/ 12.75. III: 3.75/ 3.12/ 1.5/ 2.75/ 1.12/ 12.25. IV: 5.37/ 3.25/ 3.12/ 2.5/ 1.12/ 15.37. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0-0-2, r5-15-11; Me v0-0-2, d0, p8-8-7, r12-15-4; ta v0-0-3, d0, p4-5-3, r5-5- 4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-9-7, d0, p0, r32-45-26; Me v0-0-2, d0, p1-6-8, r13-8-7; ta v1-2-3, d0, p7-6-2, r2-4-3. III—Fe v0, d0, p0, r0; Pa v0, d0-0-23, p0- 0-7, r0-1-11; ti v0, d1-0-14, p0-0-5, r5-10-12; Me v0-0-2, d2-2-3, p4-2-0, r7-17-8; ta v13-17-13, d0, p0-4-3, r2-7-4; IV—Fe v0, d0, p0, r0; Pa v0, d20-9-5, p1-3-0, r0; ti v0, d0, p0, r0; Me v0, d0-0-1, p1-2-5, r0; ta v0-6-8, d0, p16- 13-10, r0-0-5. Spermathecae: Two seminal receptacles slightly asymmetric, longer than wide, with short ducts. On dorsal view, left receptacle with three lobes and right receptacle with two lobes, external lobe with the same height as other lobes. Pore distribution reaching 75% of each receptacle apical length ( Fig. 225 A View FIGURE 225 ).

VARIATION

FEMALES (n=6): Eyes: Diameters: PME 0.12–0.32, PLE 0.24–0.4, ALE 0.28–0.56, AME 0.12–0.32; MOQ: Length 0.76–1.44, front width 1.88–4, back width 1.8– 3.72; Interdistances: PME–PME 1.04 – 2.2 , PLE–PME 0.08–0.28, AME–AME 0.2–0.44, ALE–AME 0.72–1.36, ALE–PLE 0.4–0.8, AME–PME 0.4–0.84. Ocular area : OAL 3.25–6.5, OAW 2.25–5, and IF 1.62–3.5. Body : Total length: 10.87–19.12; Carapace : long 3.75–7.37; wide 3.75–7.5; Clypeus : 0.37–0.62; Fovea : 1.75–3.75; Labium : long 1–2.12; wide 0.87–1.87; Chelicerae : long 2.62–4.87; wide 1.5–3.25; Sternum : long 2.87–5.62; wide 2.5–4.75. Abdomen : long 6.25–11.25; wide 4.75–10. Leg measurements: I: Fe 3–4.37/ Pa 1.62–3/ Ti 1.12–2.25/ Me 1.25–2.62/ Ta 0.75–1.62/ total 7.12–13. II: 2.25–4.37/ 1.5–3.12/ 1–1.87/ 1.5–2.75/ 0.87–1.37/ 7.12–13.25. III: 2.12–4.37/ 1.87–3.5/ 0.5–1.5/ 1.62–2.75/ 0.75–1.37/ 7.12–2.72. IV: 2.87–5.62/ 1.87–3.75/ 1.75–3.12/ 1.87– 3.62/ 0.75–1.25/ 9.12–17. Formula 4123 .

Distribution. BRAZIL. Pará: Santarém. BOLIVIA. Santa Cruz: San Miguel de Monte, Puerto Pailas, and La Bola ( Map 18 View MAP 18 ).

Examined material. BOLIVIA: Santa Cruz: [17° 52’ S 63° 0’ W], San Miguel de Monte Grande (Rd. To Camiri, Km 35), 1♀, 12.i.1991, P.A. Goloboff, Santisteban & McHugh leg. ( AMNH) GoogleMaps ; Puerto Pailas, Bridge over Rio Grande , 2♀ 7J, 8.i.1991, P. A. Goloboff, Santisteban & McHugh leg. ( AMNH) ; La Bola , 3♀, 8.i.1991, P. A. Goloboff, Santisteban & McHugh leg. ( AMNH) .