Actinopus cucutaensis (Mello-Leitão, 1941)

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 : 191-196

Actinopus cucutaensis (Mello-Leitão, 1941)

Figs 172–176 , Map 11

Actinopus cucutaensis Mello-Leitão, 1941: 114 , fig. 1 (holotype ♂, Cucutá , Norte de Santander, Colombia, ICN, burned); World Spider Catalog, 2020.

Diagnosis. Males of Actinopus cucutaensis differ from all other species of the genus by the apical tegular process nearly 3/4 the size of the embolus. They differ from those of those of A. lomalinda ( Fig. 186 A–C) by the ATP angle of insertion on tegulum and in the presence of a bigger serrated area, which occupies 40% of the embolus, as seen on dorsal view ( Fig. 176 A–C). Females differ from those of all other species of the genus by the two mushroomshaped receptacles, with wide, rounded apexs, and by ca. 90% of receptacles surfaces covered with pores ( Fig. 176 D ).

MALE (INPA 3513): Total length 16.62; Carapace, long 7.37; wide 8.Carapace anterior part tapering.Anterior eye row slightly procurved, posterior row recurved ( Fig. 172 B ). Two bristles between AME-clypeus. Sternum with eight sigilla fused medially, two distal sigilla more fused to each other than others ( Fig. 172 C ). Rastellum protuberant, inverted V-shaped, hirsute, without spines ( Fig. 172 E–F). Chelicerae with 15 denticles along prolateral row of teeth. Prolateral row with six megateeth and one denticle on basal part. Retrolateral row with five megateeth and four denticles between three basal megateeth ( Fig. 172 D ). Patella and tibia III with distal crown of well-developed thorns, interrupted in middle on patella III and not interruped in the middle on tibia III ( Fig. 173 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 173 A, C ). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 173 D ). Ventral pseudoscopulae occupying 30% of tarsi I, 50% of II and 100% of III and IV. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles; In tarsi III and IV, compat. Carapace and Chelicerae reddish brown, sternum yellowish brown, coxae, trochantera, femora and patellae pale brown, tibiae, metatarsi and tarsi reddish brown, abdomen pale gray ( Fig. 172 A ). Eyes: Diameters: PME 0.31 PLE 0.34 ALE 0.43, AME 1; MOQ: Length 1.28, front width 3.15, back width 2.6; Interdistances: PME–PME 1.7, PLE–PME 0.1, AME–AME 0.15, ALE–AME 0.6, ALE–PLE 0.5, AME–PME 0.35. Ocular area: OAL 5, OAW 4.16, and IF 1.75. Body: Clypeus: 0.25; Fovea: 3; Labium: long 1.75; wide 1.37; Chelicerae: long 3.37; wide 2.12; Sternum: long 4.5; wide 3.87. Abdomen: long 8.37; wide 5.62. Leg measurements: I: Fe 7.87/ Pa 3.25/ Ti 4.75/ Me 5.62/ Ta 3.25/ total 24.75. II: 7.5/ 3.12/ 4.62/ 5,37/ 3.25/ 23.87. III: 6.37/ 3.37/ 3.5/ 6.5/ 3.5/ 23.25. IV: 8.62/ 3.75/ 6.87/ 7.5/ 3.87/ 30.62. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0-0-1, d0, p0, r0; ti v0-4-5, d0, p0-0-1, r0-0-1; Me v3-3-0, d0, p2-1-3, r2-6-4; ta v1-3-2, d0, p0-1-3, r1-4-4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0- 1-0, r0; ti v1-3-3, d0, p0, r1-2-3; Me v5-4-2, d0, p1-1-2, r0-1-4; ta v0, d0, p1-3-2, r3-5-8. III—Fe v0, d0, p0, r0; Pa v0, d3-20-25, p1-0-3, r0-0-4; ti v2-2-2, d0-1-15, p1-2-4, r0-2-4; Me v4-8-9, d0, p2-1-1, r0-0-1; ta v0, d0, p1-4-5, r0-3-6; IV—Fe v0, d0, p0, r0; Pa v0, d13-9-4, p2-2-1, r0; ti v2-2-3, d0, p0-0-1, r0-0-2;Me v2-3-4, d0, p2-5-5, r0; ta v0, d0, p1-5-6, r0-3-6. Palp: PA well developed, embolus without keels (Pa, PI and PS). ATP nearly 3/4 the size of the embolus. BTA poorly developed; prolateral tegulum serrated next to base of next to base of ATP, embolus inserted at 20° angle on basal portion of copulatory bulb; embolar bases thin ( Figs. 176 A–C).

FEMALE (AMNH): Total length 18.37; Carapace, long 6.12; wide 5.50. Carapace anterior part tapering. Anterior eye row procurved, posterior row slightly recurved. More than 20 short and long bristles between AME-clypeus, one very long bristle and almost 3–5 short bristles between PLE–ALE, more than 30 short and long bristles between posterior eyes-fovea and almost 10–15 short bristles between lateral eyes-edge of carapace ( Fig. 174 B ). Sternum with eight sigilla fused medially, two distal sigilla more fused to each other than others ( Fig. 174 C ). Rastellum protuberant, subquadrate, hirsute, with a row of spines on the edge of rastellum and short spines in dorsal part of rastellum ( Fig. 174 E–F). Chelicerae with denticles along prolateral row of teeth. Prolateral row with four megateeth and two teeth on basal area. Retrolateral row with five megateeth and three teeth between four basal megateeth ( Fig. 174 D ). Patella and tibia III with distal developed crowns of thorns ( Fig. 175 A–B). Patella IV with prolaterodorsal spines along extension of article ( Figs. 175 C ). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 175 D ). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, Tibia,metatarsi,tarsi and palp reddish brown,and abdomen pale gray. 16 labial cuspules, 66 on right maxilla and 101 on left. Eyes: Diameters: PME 0.2 PLE 0.24 ALE 0.4 AME 0.16; MOQ: Length 1.04, front width 2.76, back width 2.6; Interdistances: PME–PME 1.6, PLE–PME 0.12, AME–AME 0.32, ALE–AME 0.88, ALE–PLE 0.56, AME–PME 0.56. Ocular area: OAL 4.75, OAW 3.75, and IF 0.96. Body: Clypeus: 0.37; Fovea: 2.62; Labium: long 1.5; wide 1.12; Chelicerae: long 2.5; wide 2.25; Sternum: long 3.87; wide 3.25. Abdomen: long 11.12; wide 8.12. Leg measurements: I: Fe 2.62/ Pa 2.12/ Ti 1.62/ Me 1.75/ Ta 0.75/ total 8.87. II: 2.75/ 2.12/ 1.37/ 2/ 0.87/ 9.12. III: 2.5/ 2.37/ 1.12/ 1.12/ 1.37/ 8.5. IV: 3.12/ 2.5/ 2.25/ 2/ 1/ 10.87. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0-3-4, r4-9-12; Me v1-1-2, d0, p5-10-7, r7-10-6; ta v1-2-2, d0, p5-4-0, r4- 3-22. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-4-2, d0, p0, r2-38-30; Me v0-3-1, d0, p3-7-5, r3-12-3; ta v2-2-3, d0, p6-7-4, r3-0-0. III—Fe v0, d0, p0, r0; Pa v0, d0-0-27, p0-0-7, r0-0-11; ti v0-10-14, d2-0-11, p0-0-3, r11-19-15; Me v0-6-8, d1-3-3, p0, r2-8-14; ta v20-23-16, d0-0-3, p1- 10-12, r0-8-12; IV—Fe v0, d0, p0, r0; Pa v0, d20-12-5, p0, r0; ti v0-0-1, d0, p0, r0; Me v0-0-3, d0-0-3, p0-2-4, r0; ta v2-10-11, d0, p0, r0-0-10. Spermathecae: Seminal receptacles symmetric, longer than wide, with short ducts fused on the base. Both receptacles without lobes, with rounded apexs, wider than the ducts. Pore distribution reaching basal portion of each receptacle ( Fig. 176 D ).

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.16–0.31, PLE 0.22–0.4, ALE 0.36–0.56, AME 0.21–0.56; MOQ: Length 0.92–1.28, front width 2.28–3.16, back width 2–2.9; Interdistances: PME–PME 1.28 – 1.76 , PLE–PME 0.08–0.16, AME–AME 0.08–0.24, ALE–AME 0.52–0.76, ALE–PLE 0.36–0.64, AME–PME 0.32–0.52. Ocular area : OAL 3.64–5.1, OAW 3–4.16, and IF 1.5–2.62. Body : Total length: 9.87–16.62; Carapace : long 5.12–7.37; wide 5.37–8; Clypeus: 0.12–0.3; Fovea : 2.2–3; Labium: long 1.25–3.9; wide 1–2; Chelicerae: long 2.25–3.37; wide 1.5–4; Sternum: long 3.62–4.5; wide 2.62–4. Abdomen: long 4.5–8.37; wide 3.75–5.62. Leg measurements: I: Fe 5.75–7.87/ Pa 2.37–3.25/ Ti 3.5–4.75/ Me 3.75–6/ Ta 2.25–3.25/ total 17.62–24.75. II: 5.62–7.5/ 2.37–3.25/ 3.5–4.75/ 4–6.12/ 2.37–3.25/ 17.87–25. III: 4.25–6.37/ 2.37–3.62/ 2.62–3.75/ 4.5–6.75/ 2.53.75/ 16.25–24. IV: 5.25–8.62/ 2.62–3.75/ 4.75–6.87/ 5–7.87/ 2.5–3.87/ 20.12–30.62.

Distribution. BRAZIL. Roraima: Amajari; COLOMBIA. Meta: Pto. Lleras Lomalinda ; Santander: Cúcuta; VENEZULA. Aragua: Maracay, and Bolivar ( Map 11 ).

Material examined. VENEZUELA: Aragua: Maracay , El Limón, [10º 18’ N 67º 37’ W] 1♂, X. Angola leg. ( MIZA 423 ) ; El Cast „no, [10º 17’ N 67º 44’ S], 700m, 1♂, J. S. de Souza leg. ( MIZA 698 ) . Bolivar, [06º 21’ N 63º 34’ W]: Rio Sipao, 110km E Caicara, ( Galley forest ), 1♂, 17.VI–4.viii.1987, S&J Peck leg. ( AMNH) ; 70km WC Bolivar, Puente Cocoizas , (Forested ravine in woodland), 2♂, 19.VI–3.viii.1987, S&J Peck leg. ( AMNH). BRAZIL: Roraima: Amajari, [03º 23’ N 61º 41’ W], Ilha de Maracá, Estação Ecológica de Maracá , 2♂, 13.v.1987, J. E. Brasil leg. ( INPA 3513 , MCN 17595) . COLOMBIA: Meta: Pto. Lleras Lomalinda, ± 300m, 3° 18’ N 73° 22’ W, (Grasslands, patches of jungle, woods, marshrlo. Taken in slightly sloping sand), 1♀ 7♂ and 3J, 26.iv.1986, B. T. Carrol leg. ( AMNH) .

Figures

MAP 11. Distribution map of Actinopus robustus O. Pickard-Cambridge, 1892, Actinopus guajara sp. nov., Actinopus palmar Ríos-Tamayo & Goloboff, 2018, Actinopus lomalinda sp. nov., Actinopus concinnus sp. nov. and Actinopus cucutaensis (Mello- Leit„o, 1941).

FIGURE 172. Actinopus cucutaensis (Mello-Leit„o, 1941), male: A–F INPA 3513: A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral.

FIGURE 173. Actinopus cucutaensis (Mello-Leit„o, 1941), male: A–D INPA 3513: A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal.

FIGURE 174. Actinopus cucutaensis (Mello-Leit„o, 1941), female: A–F AMNH: A. Abdomen, dorsal; B. Carapace, dorsal; C. Sternum, ventral; D. Cheliceral teeth, ventral; E. Rastellum, dorsal; F. Rastellum, ventral.

FIGURES 175. Actinopus cucutaensis (Mello-Leit„o, 1941), female: A–D AMNH: A. Patella III, dorsal; B. Tibia III, dorsal; C. Patella IV, dorsal; D. Tibia IV, dorsal.

FIGURE 176. Actinopus cucutaensis (Mello-Leit„o, 1941), male:A–C MCN 17595:A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; BTA-Basal Tegular Apophysis; setae: ATP-Apical Tegular Process; Serrated area. Female: D AMNH: D. Spermathecae, dorsal view. Scale line: Male: 1 mm, female: 0.5 mm.

FIGURE 186. Actinopus lomalinda sp. nov., male: A–C CASENT 9046026: A. Copulatory bulb, prolateral; B. Copulatory bulb, dorsal; C. Copulatory bulb, retrolateral. PA-Paraembolic apophysis; BTA-Basal Tegular Apophysis; ATP-Apical Tegular Process; Arrows: Serrated Area; Rectangle: Cusps on retrolateropical embolus. Paratype, female: D. CASENT 9020953: D. Spermathecae, dorsal view. Scale line: Male: 1 mm, female: 0.5 mm.