Actinopus hirsutus, 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. 1-2: 43-45

publication ID

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

publication LSID

lsid:zoobank.org:pub:D8203766-9E7B-468F-9E75-F21393A1BA3D

DOI

http://doi.org/10.5281/zenodo.5655567

persistent identifier

http://treatment.plazi.org/id/0975136A-FFA7-CE71-FCD5-FA6CDF033402

treatment provided by

Plazi

scientific name

Actinopus hirsutus
status

sp. nov.

Actinopus hirsutus   sp. nov.

Figs 36–38 View FIGURE 36 View FIGURE 37 View FIGURE 38 , Map 4 View MAP 4

Type material. Holotype male from [28° 15’ 40.19” S 52° 24’ 30.01” W], Flona, Passo Fundo, Rio Grande do Sul, Brazil , 1–8.ii.2009, R. Moraes leg. ( MCN) GoogleMaps   . Paratypes: BRAZIL. Rio Grande do Sul: Itaara , [29° 37’ 35.47” S 53° 46’ 08.53” W], 1 GoogleMaps   ♁, xii.2006, A. A. Lise leg. ( MCTP 20487 View Materials )   ; iii.2007, A. A. Lise et al. leg. ( MCTP 20483 View Materials , 20484 View Materials , 20485 View Materials , 20486 View Materials )   .

Etymology. The specific name is a Latin adjective meaning hairy, referring to the hirsute legs, a very notable and uncommon character in Actinopus   .

Diagnosis. Males of A. hirsutus   differ from those of all other species of Actinopus   , except A. pinhao   ( Fig. 31 View FIGURE 31 A–D), by the hirsute legs. They also resemble A. pinhao   ( Fig. 32 View FIGURE 32 A–C), A. ducke   ( Fig. 35 View FIGURE 35 A–C), A. jaboticatubas   ( Fig. 41 View FIGURE 41 A–C) and A. confusus   ( Fig. 44 View FIGURE 44 A–C) by the serrated area distal to PAc ( Fig. 38 View FIGURE 38 A–C); they resemble those of A. pinhao   , A. ducke   and A. jaboticatubas   by the wide tegulum with robust BTA, placed medially on the prolateral tegular surface ( Fig. 38 A View FIGURE 38 ). They differ from all other species of the group pinhao   by the PA continuous to PI ( Fig. 38 A View FIGURE 38 ).

MALE (MCN): Total length 17.12; Carapace, long 6.87; wide 6.75. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 36 B View FIGURE 36 ). With many short bristles between AME-clypeus. With one long bristle 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. 36 C View FIGURE 36 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 36 View FIGURE 36 E–F). Chelicerae with 14 denticles along Prolateral row and five along retrolateral row of teeth. Prolateral row with five megateeth. Retrolateral row with six megateeth ( Fig. 36 D View FIGURE 36 ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 37 View FIGURE 37 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 37 A, C View FIGURE 37 ). Tibia IV without spines on dorsal surface ( Fig. 37 D View FIGURE 37 ). Ventral pseudoscopulae occupying 30% of tarsus I, 50% of II, 100% of III and IV and 20% of metatarsus IV. Pseudoscopula of tarsi I and II and metatarsus IV with setae spaced, forming diffuse group of bristles; on tarsi III and IV, compact. Hirsute legs ( Fig. 37 View FIGURE 37 A–D). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi reddish brown; tibia of palp paler than other articles; abdomen pale brown ( Fig. 36 A View FIGURE 36 ). Eyes: Diameters: PME 0.32, PLE 0.44, ALE 0.52, AME 0.36; MOQ: Length 1.28, front width 3.28, back width 2.96; Interdistances: PME–PME 1.76, PLE–PME 0.08, AME–AME 0.36, ALE–AME 0.84, ALE–PLE 0.56, AME–PME 0.64. Ocular area: OAL 5, OAW 4.12, and IF 3.37. Body: Clypeus: 0.37; Fovea: 2.75; Labium: long 1.75; wide 1.37; Chelicerae: long 4; wide 2.25; Sternum: long 4.12; wide 3.87. Abdomen: long 8.62; wide 5.87. Leg measurements: I: Fe 6/ Pa 3.12/ Ti 4.5/ Me 4.75/ Ta 3/ total 21.37. II: 7/ 3.25/ 4.37/ 5.25/ 3.25/ 23.12. III: 5.87/ 3.37/ 3.37/ 5.87/ 3.25/ 21.75. IV: 7.75/ 3.25/ 6.12/ 5/ 4/ 26.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v0-0-0, d0, p0-3-2, r0; ta v0-1-1, d0, p0-1-1, r0-1-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0-3-3; Me v0-1-1, d0, p0-1-5, r0-0-1; ta v0, d0, p0-1-3, r1-3-4. III—Fe v0, d0, p0, r0; Pa v0, d2-9-25, p1-3-3, r0-0-4; ti v0-0-0, d1-0-16, p0-0-3, r0-0-1; Me v0, d1-0-2, p1-3-2, r1-0-2; ta v0, d0, p0-3-7, r0-0-4; IV—Fe v0, d0, p0, r0; Pa v0-1-1, d16-12-7, p0, r0; ti v0-1-1, d0, p0, r0; Me v0-1-1, d0-0-1, p0-1-7, r0-0-2; ta v0, d0, p2-10-12, r1-8-9. Palp: PA developed, embolus with three keels (PAc, PI and PS). Robust tegulum. BTA developed and placed dorsally in relation to a middle longitudinal line; serrated area developed, positioned distal to prolateral accessory keel and next to base of embolus; embolus wide and with rounded apex ( Fig. 38 View FIGURE 38 A–C).

Distribution: BRAZIL. Rio Grande do Sul: Passo Fundo and Itaara ( Map 4 View MAP 4 ).

R

Departamento de Geologia, Universidad de Chile

MCN

McNeese State University