Actinopus longipalpis C. L. Koch, 1842

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 : 172-174

publication ID	https://doi.org/ 10.11646/megataxa.2.1.1
DOI	https://doi.org/10.5281/zenodo.5655647
persistent identifier	https://treatment.plazi.org/id/0975136A-FF26-CEF0-FCD5-FF4EDA103BDF
treatment provided by	Plazi
scientific name	Actinopus longipalpis C. L. Koch, 1842
status

Treatment

Actinopus longipalpis C. L. Koch, 1842 View in CoL

Figs 154–156 View FIGURE 154 View FIGURE 155 View FIGURE 156 , Map 8 View MAP 8

Actinopus longipalpis C. L. Koch, 1842: 102 View in CoL , fig. 754 (holotype ♂, [34º 53’ 55”S 56º 10’ 01”W], Montevideu, Uruguay, ZMB 2107, examined); Ríos-Tamayo & Goloboff, 2018: 49 View Cited Treatment , fig. 23 A–I, 24 A–D, 44; World Spider Catalog, 2020.

Diagnosis. Males of Actinopus longipalpis resembles A. pindapoy ( Fig. 159 View FIGURE 159 A–C) by absence of serrated area on copulatory bulb but Males differ from those of PS longer than PI on dorsal view ( Fig. 156 B View FIGURE 156 ).

MALE (ZMB 2107): Total length 11.37; Carapace, long 6.62; wide 6.5. Carapace anterior part tapering, subquadrate.Anterior eye row slightly procurved, posterior row recurved ( Fig. 154 B View FIGURE 154 ). Without bristles between AME-clypeus. Sternum with eight sigilla strongly fused medially ( Fig. 154 C View FIGURE 154 ). Rastellum protuberant, inverted Vshaped, hirsute, without spines apically ( Fig. 156 View FIGURE 156 D–E). Chelicerae with denticles along prolateral row of teeth. Prolateral row with megateeth and denticles. Retrolateral row with megateeth and teeth between megateeth. Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 155 View FIGURE 155 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 155 A, C View FIGURE 155 ). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 155 D View FIGURE 155 ). Ventral pseudoscopulae occupying 40% of tarsi I and 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 and abdomen pale gray ( Fig. 154 A View FIGURE 154 ). Eyes: Diameters: PME 0.24, PLE 0,32,ALE 0.48, AME 0.44; MOQ: Length 1.24, front width 3.08, back width 2.88; Interdistances: PME–PME 1.72, PLE–PME 0.16, AME–AME 0.2, ALE–AME 0.72, ALE–PLE 0.56, AME–PME 0.6. Ocular area: OAL 7.62, OAW 3.87, and IF 2.05. Body: Clypeus: 0.4; Fovea: 1.64; Labium: long 1.7; wide 1.5; Chelicerae: long 3.2; wide 2; Sternum: long 4.2; wide 4. Abdomen: long 4.87; wide 4.37. Leg measurements: I: Fe 5.75/ Pa 2.75/ Ti 3.25/ Me 4/ Ta 2.25/ total 18. II: 5.62/ 2.5/ 3.12/ 4.37/ 2.5/ 18.12. III: 5/ 2.87/ 2.5/ 4.75/ 2.87/ 18. IV: 5.62/ 2.5/ 5.12/ 5.62/ 2.87/ 21.75. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v0- 0-3, d0, p0, r0; ta v0, d0, p0-3-3, r0-1-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r1-1-1; Me v0-2-0, d0, p0-0-3, r0-0-2; ta v0, d0, p0-2-3, r0-2-3. III—Fe v0, d0, p0, r0; Pa v0, d8-12-19, p1-3-3, r0-0-2; ti v1-0-3, d0- 1-11, p1-1-4, r0-1-3; Me v1-1-2, d0, p2-3-3, r0-1-5; ta v0, d0, p1-3-3, r0-2-0; IV—Fe v0, d0, p0, r0; Pa v0, d20-9-3, p2-2-0, r0; ti v0-1-3, d0, p0, r0; Me v3-4-3, d0, p0-3-4, r0- 0-2; ta v0, d0, p0-5-6, r0-1-0. Palp: PA poorly developed, embolus with three keels (PAc, PI and PS). BTA poorly developed in both prolateral and dorsal view; prolateral tegulum without serrated area; embolar bases thinner than basal ( Fig. 156 View FIGURE 156 A–C).

Note. The holotype is in a poor condition; hindering the mobility of the chelicerae, which prevented the examination of the cheliceral teeth.

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.2–0.24, PLE 0.32, ALE 0.48–0.52, AME 0.4–0.44; MOQ: Length 1.2–1.24, front width 3.08–3.6, back width 2.88–3.2; Interdistances: PME–PME 1.72 – 1.96 , PLE–PME 0.16– 0.2, AME–AME 0.2–0.4, ALE–AME 0.72–1.08, ALE–PLE 0.56, AME–PME 0.6–0.64. Ocular area : OAL 5.5– 7.62, OAW 3.87–4.25, and IF 2.05–3. Body : Total length: 11.37–12.5; Carapace : long 6.62–7.25; wide 6.5–6.87; Clypeus : 0.37–0.4; Fovea : 1.64–2.8; Labium : long 1.7; wide 1.5; Chelicerae : long 3.2–3.6; wide 2–2.4; Sternum : long 4.2–5; wide 4–4.3. Abdomen : long 4.87–5.25; wide 4.37–4.87. Leg measurements: I: Fe 5.75–6.25/ Pa 2.75/ Ti 3.25–3.5/ Me 4–4.37/ Ta 2.25–2.87/ total 18–19.75. II: 5.62–6/ 2.5–2.87/ 3.12–3.5/ 4.37–4.62/ 2.5–2.75/ 18.12– 19.75. III: 5–5.25/ 2.87–3.5/ 2.5–2.87/ 4.75–5/ 2.87–3.37/ 18–20. IV: 5.62–6.75/ 2.5–3.37/ 5.12–5.37/ 5.62–6.12/ 2.87/ 21.75–25.21. Formula 4123 .

Distribution. ARGENTINA. Corrientes: San Cosme; URUGUAY. Montevideo, Canelones ( Map 8 View MAP 8 ).

Material examined. ARGENTINA: Corrientes, San Cosme , [27º 31’ 00”S 58º 34’ 00”W] 1♂, C. I. Wurth leg. ( MACN 19817 View Materials ) GoogleMaps .