Actinopus jamari, 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 : 217-220

Actinopus jamari sp. nov.

Figs 196–198 , Map 12

Type material. Holotype male from [09° 04’ S 63° 06’ W], Floresta Nacional do Jamarí , Porto Velho, Rondônia, Brazil, F. Terrassini & S. Albuquerque leg. ( IBSP). Paratypes: BRASIL: Mato Grosso: Aripuan „, [10° 10’ S 59° 27’ W], 1♂, 22.viii–02.ix.1997, G. Skuk leg. ( MZSP 18054 ); Sapezal, [13° 32’ S 58° 50’ W], Usina Hidroelétrica de Sapezal , 4♂, 2007, F. D. de Godoy leg. ( IBSP 113754 ) .

Etymology. The specific name refers to the type locality, Floresta Nacional do Jamarí, Porto Velho, Rondônia, Brazil.

Diagnosis. Males of Actinopus jamari resemble those of A. tarsalis ( Fig. 9 A–C), A. castelo ( Fig. 12 A–C) and A. concinnus ( Fig. 195 A–C) by the absence of BTA, but are readily recognized by the large PA with a keel inserted apically on bulb, flattened and apically folded, oblique in relation to embolus ( Fig. 198 A–C).

MALE (IBSP): Total length 20.25; Carapace, long 11.5; wide 10.87. Carapace anterior part tapering and posterior part triangular. Anterior eye row slightly procurved, posterior row recurved ( Fig. 196 B ). With few short bristles between AME-clypeus, between ALE–ALP, between posterior eyes-fovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others ( Fig. 196C ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 196 E–F). Chelicerae with 15 denticles along prolateral row of teeth. Prolateral row with five megateeth and two basal tooth. Retrolateral row with five megateeth, two basal teeth between three basal megateeth and three denticles along two basal megateeth ( Fig. 196 D ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 197 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 197 A, C ). Tibia IV without spines on dorsal surface ( Fig. 197 D ). Ventral pseudoscopulae occupying 30% of tarsus I, 40% 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 pale gray with small orange spots of unpigmentation on dorsal surface ( Fig. 196 A ). Eyes: Diameters: PME 0.25, PLE 0.5, ALE 0.75, AME 0.62; MOQ: Length 1.25, front width 4.62, back width 4.37; Interdistances: PME–PME 2.75, PLE–PME 0.12, AME–AME 0.12, ALE–AME 1.25, ALE–PLE 0.87, AME–PME 1. Ocular area: OAL 7.5, OAW 6.5, and IF 3.12. Body: Clypeus: 0.37; Fovea: 4.12; Labium: long 2.37; wide 1.87; Chelicerae: long 4.37; wide 3.12; Sternum: long 6.75; wide 6.25. Abdomen: long 9.37; wide 7.62. Leg measurements: I: Fe 11/ Pa 5.25/ Ti 6.5/ Me 6.87/ Ta 4.37/ total 34. II: 11/ 5.12/ 6.87/ 7.75/ 4.5/ 35.25. III: 9.37/ 6/ 5.37/ 10.62/ 5.12/ 36.5. IV: 12.62/ 6.12/ 9.75/ 11.37/ 5.75/ 45.62. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v1-0-4, d0, p0, r0-0-4; ta v0-3-3, d0, p0, r1-3-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-4-4, d0, p0-0-1, r0; Me v1-4-4, d0, p0-3-5, r0; ta v1-2-2, d0, p2-5-5, r1-2-4. III—Fe v0, d0, p0, r0; Pa v0, d5-15-28, p0, r0; ti v0, d1-0-12, p0-1-2, r0-2-3; Me v1-1-4, d0-0-3, p1-3-3, r2-7-6; ta v0, d0, p1- 5-4, r3-3-5; IV—Fe v0, d0, p0, r0; Pa v0, d28-8-5, p0, r0; ti v0-0-2, d0, p0, r0; Me v1-3-11, d0, p1-6-8, r0-0-2; ta v0, d0, p1-6-7, r3-7-7. Palp: PA conspicuous, displaced dorsally in relation to 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 a middle longitudinal line along prolateral tegular surface; serrated area with three rows of big notable cusps below PA in prolateral view; PA continuous to PS; Embolar base flattened, PI rotating the length of embolus from base to apex; several grooves covering prolateral tegular surface ( Fig. 198 A–C).

Distribution. BRAZIL. Rondônia: Porto Velho; Mato Grosso: Aripuan„, and Sapezal ( Map 12 ).

Figures

FIGURE 9. Actinopus tarsalis Perty, 1833 (drawings from Miglio et al., 2012), male: A–C MPEG 11717: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; PAc-ProlateralAccessory keel; PI-Prolateral Inferior keel; PS-Prolateral Superior keel; Arrow: Serrated Area. Scale line: 1 mm.

MAP 12. Distribution map of Actinopus jamari sp. nov.

FIGURE 12. Actinopus castelo sp. nov., male: A–C MPEG 22277: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; PAc-Prolateral Accessory keel; PI-Prolateral Inferior keel; PS-Prolateral Superior keel; Arrows: Serrated Area. Scale line: 1 mm.

FIGURE 195. Actinopus concinnus sp. nov., male: A–E AMNH: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; ATP-Apical Tegular Process; Arrows: Serrated area. D. Rastellum, dorsal; E. Rastellum, ventral. Scales lines: A–C: 1 mm; D–E: 0.5 mm.

FIGURE 196. Actinopus jamari sp. nov., male: A–F IBSP: A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral.

FIGURE 197. Actinopus jamari sp. nov., male:A–D IBSP:A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal.

FIGURE 198. Actinopus jamarisp.nov., male:A–C IBSP:A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; PAc-Prolateral Accessory keel; PI-Prolateral Inferior keel; PS-Prolateral Superior keel; Arrows: Serrated area. Scale line: 1 mm.