Actinopus apiacas, 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: 220-223

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.5655697

persistent identifier

http://treatment.plazi.org/id/0975136A-FF56-CE83-FCD5-FEE2DA8C3A72

treatment provided by

Plazi

scientific name

Actinopus apiacas
status

sp. nov.

Actinopus apiacas   sp. nov.

Figs 199–201 View FIGURE 199 View FIGURE 200 View FIGURE 201 , Map 13 View MAP 13

Type material. Holotype male from [09º 32’ 39.98” S 57º 27’ 03.83” W], Apiacás, Mato Grosso, Brazil , ii.1997, M. Calletto leg. ( IBSP 110503 View Materials ) GoogleMaps   . Paratypes: BRAZIL. Mato Grosso: Apiacás , [09º 32’ 39.98” S 57º 27’ 03.83” W], 2♁, ii.1997, M. Calletto leg. ( IBSP 110503 View Materials ) GoogleMaps   .

Etymology. The specific name is a noun in apposition from the type locality name.

Diagnosis. Males of Actinopus apiacas   resemble those of A. paranensis   ( Fig. 114 View FIGURE 114 A–D) and A. hirsutus   ( Fig. 37 View FIGURE 37 A–D) by hirsute legs. They differ from those of all species of the genus by the PA displaced dorsally in relation to a middle longitudinal line along prolateral tegular surface and separated from prolateral tegular border; embolar serrated area extremely developed, with three rows of large cusps ( Fig. 201 View FIGURE 201 A–C).

MALE (IBSP 1105003): Total length 20; Carapace, long 9; wide 8.75. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 199 B View FIGURE 199 ). One long bristle between AME-clypeus and row of short and weak bristles on border of clypeus. One long bristle betweenALE–ALP and many short, 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. 199 C View FIGURE 199 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 199 View FIGURE 199 E–F). Chelicerae with 25 denticles along prolateral row of teeth. Prolateral row with seven megateeth and two basal teeth. Retrolateral row with six megateeth and two basal teeth ( Fig. 199 D View FIGURE 199 ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 200 View FIGURE 200 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 200 A, C View FIGURE 200 ). Tibia IV without spines on dorsal surface ( Fig. 200 D View FIGURE 200 ). Legs and body, hirsute, with many long bristles. Ventral pseudoscopulae occupying 20% of tarsus I, 60% 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 and chelicerae dark brown; sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi reddish brown; Abdomen pale gray, with many spots of unpigmentation on dorsal surface and many long bristles ( Fig. 199 A View FIGURE 199 ). Eyes: Diameters: PME 0.25, PLE 0.33, ALE 0.5, AME 0.58; MOQ: Length 1.58, front width 3.42, back width 3.33; Interdistances: PME–PME 2.17, PLE–PME 0.17, AME–AME 0.33, ALE–AME 0.67, ALE–PLE 0.83, AME–PME 0.58. Ocular area: OAL 6.25, OAW 5.62, and IF 3.87. Body: Clypeus: 0.37; Fovea: 3.12; Labium: long 2.12; wide 2.2; Chelicerae: long 4.37; wide 2.75; Sternum: long 5.87; wide 5.87. Abdomen: long 9; wide 6.75. Leg measurements: I: Fe 10.25/ Pa 4/ Ti 6/ Me 7.25/ Ta 4.12/ total 31.62. II: 10/ 4.12/ 6.12/ 6.5/ 4.12 /30.87. III: 7.5/ 4/ 5/ 8.5/ 3.87/ 28.87. IV: 10/ 3.87/ 8.12/ 8.5/ 4.62/ 35.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v1-2-1, d0, p0, r0; ta v0, d0, p0-1-1, r0. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-6, d1-0-16, p0, r0; Me v3-5-6, d0, p0-0-2, r0; ta v0-0-3, d0, p1-2-5, r0; III—Fe v0, d0, p0, r0; Pa v0, d8-13-31, p0, r0-0-1; ti v0, d1-0-14, p0-0-1, r0-0-2; Me v0-0-2, d0, p1-2-7, r0- 1-7; ta v0, d0, p2-4-5, r2-4-3. IV—Fe v0, d0, p0, r0; Pa v0, d8-8-4, p0, r0; ti v0, d0, p0, r0; Me v0, d0, p0, r0; ta v0, d0, p0-3-4, r0-0-10. Palp: PA conspicuous, displaced dorsally in relation to a middle longitudinal line along prolateral tegular surface and away from tegular border. Embolus with two keels (PI and PS). BTA developed and displaced dorsally in relation to middle longitudinal line along prolateral tegular surface; serrated area represented by three rows of big notable cusps below PA in prolateral view; PA continuous to PS; Embolar base flattened, large, PI rotating length of embolus from base to apex; several grooves cover prolateral tegular surface, distal third of embolus with prolateral lamelae ( Fig. 201 View FIGURE 201 A–C).

Distribution. BRAZIL. Sergipe: Canindé de S„o Francisco; Mato Grosso: Apiacás ( Map 13 View MAP 13 ).

Material examined (burned in fire). BRAZIL. Sergipe: Rio S „o Francisco, Canindé de S„o Francisco, Usina Hidroelétrica Xingó, 09º 37’ 34” S 37º 45’ 22” W, 1♁, 16.ii.2000 ( IBSP 114465 View Materials ) GoogleMaps   .