Actinopus mairinquensis, sp. nov.
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 mairinquensis

description: Actinopus mairinquensis sp. nov.
Figs 16–18, Map 2
Type material. Holotype male from [23º 32’ 48.91” S 47º 11’ 02.79” W], Mairinque, S „o Paulo, Brazil, 22.iv.1992, C. S. de Oliveira leg. (IBSP 110484). Paratype: BRAZIL. São Paulo: São Paulo, [23° 32’ 56” S 46° 38’ 20” W], 1♂, iii.1977, C. Aporeian leg. (IBSP 104126).
Etymology. The specific name is an adjective derived from the type locality name.
Diagnosis. Males of A. mairinquensis, as A. apalai (Fig. 15 A–C), are characterized by the PA continuous to PI (Fig. 18 A); pronounced PA and BTA inconspicuous (Fig. 18 A–C); serrated area, represented by few cusps distal to PI (Fig. 18 A–B). They differ from those of those of A. apalai and A. smuzikae (Ríos-Tamayo & Goloboff, 2018, fig. 34 D–F) by BTA displaced dorsally in relation to a middle longitudinal line along prolateral tegular surface; PA reduced than on A. apalai; serrated area also reduced, but more developed than A. apalai (Fig. 18 A, C) and less developed than A. smuzikae (with four cusps); dorsal abdominal scutum absent (Fig. 16 A) as on A. smuzikae.
MALE (IBSP 110484): Total length 11.87; Carapace, long 5.12; wide 5. Carapace anterior part tapering. Eyes. Anterior row slightly procurved, posterior row recurved (Fig. 16 B). With many short bristles in row on border between AME-clypeus. Without bristles 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. 16 C). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically (Fig. 16 E–F). Chelicerae with eleven denticles along prolateral row of teeth. Prolateral row with five megateeth. Retrolateral row with six megateeth (Fig. 16 D). Patella and tibia III with distal crown of welldeveloped thorns, not interrupted in middle (Fig. 17 A– B). Patellae III and IV with spines on prolaterodorsal face (Fig. 17 A, C). Tibia IV without spines on dorsal surface and with two visible rows of trichobothria (Fig. 17 D). Ventral pseudoscopulae occupying 25% 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 reddish-dark-brown; Abdomen gray (Fig. 16 A). Eyes: Diameters: PME 0.2, PLE 0.28, ALE 0.44, AME 0.32; MOQ: Length 0.92, front width 2.4, back width 2.28; Interdistances: PME–PME 1.44, PLE–PME 0.08, AME–AME 0.2, ALE–AME 0.56, ALE–PLE 0.4, AME–PME 0.32. Ocular area: OAL 3.75, OAW 3, and IF 1.75. Body: Clypeus: 0.25; Fovea: 2; Labium: long 1.25; wide 1; Chelicerae: long 3; wide 1.5; Sternum: long 3.62; wide 3. Abdomen: long 6.5; wide 5. Leg measurements: I: Fe 4.75/ Pa 2.25/ Ti 2.75/ Me 2.75/ Ta 2/ total 14.5. II: 4.75/ 2.25/ 2.75/ 3.37/ 1.75/ 14.87. III: 3.75/ 2.25/ 2.12/ 3.5/ 1.87/ 13.5. IV: 5.25/ 2.12/ 4/ 4/ 2.37/ 17.75. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-4-5, d0, p0, r0; Me v1-3-2, d0, p1-3-2, r1-3-3; ta v1- 3-0, d0, p1-3-2, r3-3-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-4-4, d0, p0, r1-7-6; Me v1-3-2, d0, p0-1-1, r0-7-4; ta v0-3-3, d0, p1-1-2, r0-3-3. III—Fe v0, d0, p0, r0; Pa v0, d3-5-19, p0-0-3, r0-0-3; ti v0-0-3, d0, p0-0- 1, r0-1-4; Me v0-1-5, d0, p1-1-1, r0-0-2; ta v0, d0, p0- 0-3, r0; IV—Fe v0, d0, p0, r0; Pa v0, d8-10-7, p0, r0; ti v2-3-3, d0, p0-0-1, r0; Me v2-1-2, d0, p1-3-2, r0-0-1; ta v0, d0, p0-3-2, r0. Palp: BTA developed, dorsal; with two keels (PS and PI) demarcated in prolateral and dorsal faces. Only PS demarcated on retrolateral face. PS and PI developed and PA continuous to PI. Robust tegulum and thin embolus (Fig. 18 A–C).
Distribution. BRAZIL. S„o Paulo: S„o Paulo and Mairinque (Map 2).
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 22-24, DOI: 10.11646/megataxa.2.1.1, http://zenodo.org/record/5597237