Actinopus concinnus, 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. 1-256 : 212-214

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5655687

persistent identifier

https://treatment.plazi.org/id/0975136A-FF5E-CE88-FF77-F88DDF383B90

treatment provided by

Plazi

scientific name

Actinopus concinnus
status

sp. nov.

Actinopus concinnus View in CoL sp. nov.

Figs 193–195 View FIGURE 193 View FIGURE 194 View FIGURE 195 , Map 11 View MAP 11

Type material. Holotype male from forested ravine in woodland, FIT 87–36, Puente Cocoizas, 70km WC Bolivar, [6º 21’ N 63º 34’ W], Bolivar, Venezuela , 19.VI–3.viii.1987, S&J Peck leg. ( AMNH) GoogleMaps . Paratype: VENEZUELA: Caracas , [10° 29’ 00” N 66° 55’ 00” W]: San Jose del Avila, 1♂, 1940, Padre C. Vogl leg. ( AMNH) GoogleMaps .

Etymology. The specific name is a Latin adjective meaning bizarre, referring to the odd apical tegular process in this species, protruding from the tegulum in a unique way.

Diagnosis. Males of Actinopus concinnus resemble those of A. tarsalis ( Fig. 9 View FIGURE 9 A–C), A. castelo ( Fig. 12 View FIGURE 12 A–C) and A. jamari ( Fig. 198 View FIGURE 198 A–C) by the absence of BTA, and those of the group cucutaensis by having an apical tegular process (ATP). They differ from those of all species in the genus by the ATP being inserted obliquely in relation to the embolus, with many cusps covering the ATP surface ( Fig. 195 View FIGURE 195 A–C).

MALE (Holotype): Total length 11; Carapace , long 5; wide 5.87. Carapace anterior part tapering. Eyes. Anterior row slightly procurved, posterior row recurved ( Fig. 193 B View FIGURE 193 ). Many short bristles between AME-clypeus and one long bristle ALE–PLE. Many short bristles between posterior-fovea and some between lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more demarcated than others ( Fig. 193 C View FIGURE 193 ). Rastellum protuberant, inverted V-shaped, hirsute, with few widespread spines in apex ( Fig. 195 View FIGURE 195 D–E). Chelicerae with denticles along Prolateral row and one denticle after the last basal tooth. With seven teeth on prolateral row and seven on retrolateral too ( Fig. 193 D View FIGURE 193 ). Patella and tibia III with distal crown of well developed thorns ( Fig. 194 View FIGURE 194 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 194 A, C View FIGURE 194 ). Tibia IV without spines on dorsal surface ( Fig. 194 D View FIGURE 194 ). Without ventral pseudoscopulae on tarsus I, ventral pseudoscopulae occupying 10% of length of tarsi I, 30% 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 , chelicera, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi of legs reddish brown; Abdomen gray ( Fig. 193 A View FIGURE 193 ). Eyes: Diameters : PME 0.2, PLE 0.24, ALE 0.32, AME 0.36; MOQ: Length 0.76, front width 2, back width 1.88; Interdistances : PME–PME 1.08 , PLE–PME 0.04, AME–AME 0.08, ALE–AME 0.36, ALE–PLE 0.32, AME–PME 0.28. Ocular area : OAL 3.36, OAW 2.88, and IF 2.25. Body : Clypeus : 0.12; Fovea : 1.87; Labium : long 1.25; wide 0.87; Chelicerae : long 2.25; wide 1.25; Sternum : long 3; wide 2.5. Abdomen : long 6; wide 4.12. Leg measurements: I: Fe 5/ Pa 2.12/ Ti 3.12/ Me 3.75/ Ta 2.25/ total 16.25 . II: 5/ 2.12/ 3.25/ 4/ 2.5/ 16.87. III: 4.25/ 2.25/ 2.75/ 5/ 2.87/ 17.12. IV: 6/ 2.37/ 4.25/ 5.375/ 3/ 21. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0-0-1, d0, p0, r0; ti v3-3-5, d0, p0, r0; Me v3-6-4, d0, p1-2-2, r1-3-2; ta v0-1-4, d0, p0-2-2, r2-2-2. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v3-3-5, d0, p0-1-1, r0; Me v3-8-7, d0, p1-0-0, r0-0-2; ta v0-0-1, d0, p1-2-2, r3-3-6. III—Fe v0, d0, p0, r0; Pa v0-0-1, d14-20-28, p0-0-2, r0; ti v3-2-4, d1-1-15, p0-1-3, r0-0-3; Me v1-10-6, d2-0-1, p1-1-1, r1-2-4; ta v1-10-6, d0, p0-1-3, r1-7-3; IV—Fe v0, d0, p0, r0; Pa v0, d24-15-9, p2-2-2, r0; ti v2-2-4, d0, p1- 1-0, r0; Me v1-5-6, d0, p1-2-1, r0-0-1; ta v0, d0, p0-5-5, r0-4-5. Palp: PA well developed, isolated from any keel. Embolus without keels. Without BTA; inferior surface of tegulum and embolus with extensive serrated area; very large, conspicuous ATP located between PA and embolus base; embolar base thin ( Fig. 195 View FIGURE 195 A–C).

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.16–0.2, PLE 0.2–0.24, ALE 0.32–0.36, AME 0.36; MOQ: Length 0.76–0.84, front width 2, back width 1.84–1.88; Interdistances: PME–PME 1.08 1.12 , PLE–PME 0.04– 0.08, AME–AME 0.08–0.16, ALE–AME 0.36–0.44, ALE–PLE 0.32–0.48, AME–PME 0.28–0.32. Ocular area : OAL 3–3.36, OAW 2.6–2.88, and IF 2.25. Body : Total length: 8.87–11; Carapace : long 4.5–5; wide 4.5– 5.87; Clypeus : 0.12; Fovea : 1.12–1.87; Labium : long 1.12–1.25; wide 0.87–0.87; Chelicerae : long 1.87–2.25; wide 1.25; Sternum : long 2.87–3; wide 2.5. Abdomen : long 4.37–6; wide 4–4.12. Leg measurements: I: Fe 5–5.12/ Pa 2–2.12/ Ti 3.12–3.62/ Me 3.75/ Ta 2.25/ total 16.25–16.75. II: 4.87–5/ 1.87–2.12/ 3.25–3.5/ 4–4.12/ 2.37–2.5/ 16.75–16.87. III: 4.25/ 2.12–2.25/ 2.5–2.75/ 4.25–5/ 2.75–2.87/ 15.87–17.12. IV: 4.62–6/ 2.37/ 4.25– 5/ 5.37/ 2.12–3/ 19.5–21. Formula 4123 .

Distribution. VENEZUELA. Bolivar; and Caracas: San Jose del Avila ( Map 11 View MAP 11 ).

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus

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