Actinopus mairinquensis, 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: 22-24

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.5655553

persistent identifier

http://treatment.plazi.org/id/0975136A-FF98-CE4A-FCD5-FAAEDF543429

treatment provided by

Plazi

scientific name

Actinopus mairinquensis
status

sp. nov.

Actinopus mairinquensis   sp. nov.

Figs 16–18 View FIGURE 16 View FIGURE 17 View FIGURE 18 , Map 2 View 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 View Materials ) GoogleMaps   . Paratype: BRAZIL. São Paulo   : São Paulo, [23° 32’ 56” S 46° 38’ 20” W], 1♁, iii.1977, C. Aporeian leg. ( IBSP 104126 View Materials ) GoogleMaps   .

Etymology. The specific name is an adjective derived from the type locality name.

Diagnosis. Males of A. mairinquensis   , as A. apalai   ( Fig. 15 View FIGURE 15 A–C), are characterized by the PA continuous to PI ( Fig. 18 A View FIGURE 18 ); pronounced PA and BTA inconspicuous ( Fig. 18 View FIGURE 18 A–C); serrated area, represented by few cusps distal to PI ( Fig. 18 View FIGURE 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 View FIGURE 18 ) and less developed than A. smuzikae   (with four cusps); dorsal abdominal scutum absent ( Fig. 16 A View FIGURE 16 ) 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 View FIGURE 16 ). 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 View FIGURE 16 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 16 View FIGURE 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 View FIGURE 16 ). Patella and tibia III with distal crown of welldeveloped thorns, not interrupted in middle ( Fig. 17 View FIGURE 17 A– B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 17 A, C View FIGURE 17 ). Tibia IV without spines on dorsal surface and with two visible rows of trichobothria ( Fig. 17 D View FIGURE 17 ). 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 View FIGURE 16 ). 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 View FIGURE 18 A–C).

Distribution. BRAZIL. S„o Paulo: S„o Paulo and Mairinque ( Map 2 View MAP 2 ).