Actinopus fractus Mello-Leitao 1920
Creators: name: Miglio, Laura Tavares
name: Pérez-Miles, Fernando
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Actinopodidae
Actinopus
Actinopus fractus

description: Actinopus fractus Mello-Leitão, 1920
Figs 19–21, Map 3
Actinopus fractus Mello-Leitão, 1920: 58 (holotype ♂, [20° 31’ 59.9982” S 47° 23’ 59.9994” W], Franca, S„o Paulo, Brazil, MZSP 323, examined); Mello-Leit „o, 1923: 21; World Spider Catalog, 2020.
Diagnosis. Males of A. fractus differ from those of other species belonging to the group fractus, by the BTA displaced dorsally in relation to a middle longitudinal line along prolateral tegular surface; and by the more developed PA (Fig. 21 A–C).
MALE (IBSP 114535): Total length 15.75; Carapace, long 7.47; wide 7.92. Carapace anterior part rounded. Eyes. Anterior eye row slightly procurved, posterior row recurved (Fig. 19 B). Few short bristles between AMEclypeus and posterior eyes. Sternum with eight sigilla fused medially, two distal sigilla more fused to each other than others (Fig. 19 C). Rastellum protuberant, subtriangular, hirsute, with row of strong spines apically (Fig. 19 E–F). Subinguinal sulci with small denticles along prolateral row of teeth. Denticles in middle of prolateral row of teeth. Teeth on both margins, subequals in size (Fig. 19 D). Patella and tibia III with distal crown of well-developed thorns, interrupted on the middle on patella III and not interrupted in middle on tibia III (Fig. 20 A–B). Tibia III with recurved crown of spines (Fig. 20 B). Patellae IV with spines on prolaterodorsal face along all length of article (Fig. 20 C). Tibia IV without spines on prolateral surface (Fig. 20 D). Ventral pseudoscopulae diffuse, in two parallel rows, occupying 70% of tarsi I, 50% of II and compacts, occupying 100% of tarsi III and IV. Carapace and chelicerae dark-brown; sternum reddish brown; legs dark-reddish-brown; tibia of palp slightly yellow; and abdomen dark-gray (Fig. 19 A). Eyes: Diameters: PME 0.25, PLE 0.21, ALE 0.47, AME 0.34; MOQ: Length 1.22, front width 1.02, back width 2.34; Interdistances: PME–PME 1.96, PLE–PME 0.18, AME–AME 0.24, ALE–AME 1.06, ALE–PLE 0.66, AME–PME 0.74. Ocular area: OAL 5.83, OAW 4.36, and IF 3.28. Body: Clypeus: 0.38; Fovea: 3.11; Labium: long 2.21; wide 1.61; Chelicerae: long 4.72; wide 2.53; Sternum: long 5.33; wide 4.87. Abdomen: long 8.07; wide 6.81. Leg measurements: I: Fe 7.66/ Pa 3.68/ Ti 3.46/ Me 5.14/ Ta 2.64/ total 22.58. II: 7.22/ 3.66/ 3.63/ 5.26/ 2.75/ 22.52. III: 6.07/ 3.87/ 2.8/ 5.71/ 2.98/ 21.43. IV: 8.39/ 3.95/ 5.65/ 6.6/ 3.11/ 27.7. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-3, d0, p0, r0; Me v0-3-5, d0, p0-1-3, r0-1-4; ta v0-2-1, d0, p0-2-2, r1-3-4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-5-1, d0, p0, r0-1-3; Me v0-3-5, d0, p0-2-3, r0-0-2; ta v0, d0, p0-2-2, r3-7-5. III—Fe v0, d0, p0, r0; Pa v0, d5-10-15, p0, r0-0-3; ti v0, d1-0-12, p0-0-2, r0-1-3; Me v0-0-2, d3-4-4, p1-0-2, r0-2-1; ta v0, d0, p0, r0; IV—Fe v0, d0, p0, r0; Pa v0, d17-7-4, p3-4-0, r0; ti v0, d0, p0, r0; Me v1-0-2, d0, p0-1- 3, r0; ta v0, d0, p1-5-7, r0. Palp: BTA poorly developed, dorsally. Without PAc. Distal third of embolus with sharp inclination in relation to tegulum. PA poor pronounced (Fig. 21 A–C).
VARIATION
MALES (n=4): Eyes: Diameters: PME 0.22–0.25, PLE 0.21–0.41, ALE 0.42–0.54, AME 0.34–0.45; MOQ: Length 1.22–1.38, front width 1.02–1.21, back width 2.34–2.72; Interdistances: PME–PME 1.96 – 2.25, PLE–PME 0.13–0.18, AME–AME 0.22–0.39, ALE–AME 0.89–1.07, ALE–PLE 0.57–0.7, AME–PME 0.67–0.8. Ocular area: OAL 5.02–5.83, OAW 3.75–4.54, and IF 2.61–3.28. Body: Total length: 12.87–19.31; Carapace: Length 6.36–7.77; wide 6.93–8.55; Clypeus: 0.24–0.38; Fovea: 3–3.15; Labium: Length 2–2.45; wide 1.58–1.74; Chelicerae: Length 3.95–5.32; wide 2.2–2.53; Sternum: Length 5.17–7.45; wide 4.43–6.14. Abdomen: Length 5.61–10.62; wide 5.27–10.26. Leg measurements: I: Fe 6.93–7.98/ Pa 3.23–3.96/ Ti 3.46–4.48/ Me 5.01–5.6/ Ta 2.42–2.67/ total 21.36–24.53. II: 7.15–7.5/ 3.3–3.87/ 3.6–4.3/ 4.7–5.62/ 2.45–2.75/ 21.36–23.74. III: 5.8–6.39/ 3.59–3.87/ 2.67–3.24/ 5.47–6.22/ 2.98–3.31/ 20.85– 22.97. IV: 7.86–8.92/ 3.78–4.29/ 5.46–6.56/ 6.26–6.84/ 3.11–3.71/ 26.84–30.32.
Distribution. BRAZIL. S„o Paulo: S„o Carlos, Itirapina, and Brotas.
Examined material. BRAZIL: S„o Paulo: S„o Carlos, 1♂, [22° 31’ 59.9982” S 51° 58’ 59.9988” W] x.1982, E. J. Godoy leg. (IBSP 114535); Itirapina, Estaç„o Ecológica de Itirapina, 22º15’ S 47º49’ W, 1♂, 14–21.v.2001, C. Bertim et al. leg. (IBSP 114457); Brotas, [22° 16’ 59.9982” S 48° 7’ 0.0006” W], Região de Campo Cerrado, 1♂, 01.vii.1999, E. O. Oliveira leg. (IBSP 107918).
description: Published as part of Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), pp. 1-256 in Megataxa 2 (1) on pages 26-29, DOI: 10.11646/megataxa.2.1.1, http://zenodo.org/record/5597237