Actinopus paraitinga, 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 : 63-68

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5655577

persistent identifier

https://treatment.plazi.org/id/0975136A-FFB3-CE1E-FCD5-FEF2DAD53426

treatment provided by

Plazi

scientific name

Actinopus paraitinga
status

sp. nov.

Actinopus paraitinga sp. nov.

Figs 55–59 View FIGURE 55 View FIGURE 56 View FIGURE 57 View FIGURE 58 View FIGURE 59 , Map 4 View MAP 4

Type material. Holotype male from [23° 24’ 18” S 45° 15’ 51” W], Parque Estadual Serra do Mar , Núcleo Santa Virgínia, S „o Luiz do Paraitinga, S„o Paulo, Brazil, 19.i.2005, Prado leg.( IBSP113424 View Materials ) GoogleMaps . Paratypes: BRAZIL . Goiás: Padre Bernardo, Fazenda Santa Clara , [15º 10’ 04” S 48º 17’ 04” W], 1♂, D. Brureville leg. ( MNRJ 6795 View Materials ) GoogleMaps . Minas Gerais: Belo Horizonte, Bairro Gamaleira , [19° 56’ S 45° 59’ W], 1♂, 24.ix.1999 ( UFMG 581 View Materials ) GoogleMaps ; Viçosa, Bairro de Lourdes , [20º 45’ 21” S 42º 52’ 59” W], 1♂, 22.i.2002, B. de S GoogleMaps . Lima leg. ( MNRJ 6789 View Materials ) ; Campus da Universidade Federal de Viçosa ( UFV) , Villa Gianetti 21, Varanda , [20º 45’ 51” S 42º 52’ 05” W], 1♂, 26.i.1990, M. A. M GoogleMaps . Rocha leg. ( MNRJ 6794 View Materials ) . Rio de Janeiro: Macaé, Parque Natural Municipal Atalaia , [22° 17’ S 42° 28’ W], 2♂, 04.ix.2010, G GoogleMaps . Costa leg. ( UFRJ 6464 ) ; Cachoeiras do Macacu, Reserva Biológica de Guapiaçu , 22° 25’ 45” S 2° 44’ 62” W, 1♂ e 1j, 8–12.xi.2001, A. Giupponi leg. ( MNRJ 3555 View Materials ) ; Pinheiral , [22° 31’ S 43° 59’ W], 2♂ e 1♀, M. Mello leg. ( MNRJ 1 View Materials ) GoogleMaps . São Paulo: São Luiz do Paraitinga , [23° 13’ S 45° 18’ W] 1♂, 28.ii–1º. iii.2005, I. Messina leg. ( IBSP 112998 View Materials ) GoogleMaps ; 3♂, 28.ii–1º. iii.2005, I. Messina col. ( IBSP 112999 View Materials , one removed for SEM) ; 1♂ e 1♀, 28.ii–1º. iii.2005, I. Messina leg. ( IBSP 113000 View Materials ) ; Parque Estadual Serra do Mar, Núcleo Santa Virgínia , [23° 24’ 18” S 45° 15’ 51” W], 1♂, 19.i.2005, Prado leg. ( IBSP 113419 View Materials , 113420 View Materials , 113421 View Materials , 113422 View Materials , 113423 View Materials , 113424 View Materials ) GoogleMaps .

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

Diagnosis. Males of A. paraitinga differ from those of most species of the genus by the delicate embolus and notable BTA placed medially on prolateral tegular surface. Males differ from those of all other species of the group by the tegulum with a swelling, above PA (visible on both prolateral and retrolateral views) and by the thinner embolus ( Fig. 59 View FIGURE 59 A–C). Females differ from those of other species by a unique combination of characters: two receptacles, each with two lobes; external lobe subtriangular, bigger than internal lobe and the presence on external lateral wall of each receptacle with a slight swelling ( Fig. 59 D View FIGURE 59 ).

MALE (IBSP 113424): Total length 12.12; Carapace, long 6.25; wide 6.25. Carapace anterior part tapering. Anterioreyerowslightlyprocurved,posteriorrowrecurved ( Fig. 55 B View FIGURE 55 ). Six bristles between AME-clypeus. Sternum with eight sigilla fused medially, all sigilla strongly demarcated and fused to each other ( Fig. 55 C View FIGURE 55 ) Rastellum protuberant, inverted V-shaped, hirsute, with two spines apically ( Fig. 55 View FIGURE 55 E–F). Chelicerae with denticles along prolateral row of teeth. Prolateral row with five megateeth and two denticles. Retrolateral row with five megateeth and three teeth between three basal megateeth ( Fig. 55 D View FIGURE 55 ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 56 View FIGURE 56 A–D). Patellae III and IV with spines on prolaterodorsal face ( Figs. 56 A, C View FIGURE 56 ). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 56 D View FIGURE 56 ). Ventral pseudoscopulae occupying 30% of tarsi I, 40% of II and 100% of III and IV, and occupying 15% of metatarsi I. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles. Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi reddish brown, tibia of palp yellow and abdomen pale brown ( Fig. 55 A View FIGURE 55 ). Eyes: Diameters: PME 0.3 PLE 0.4; ALE 0.5; AME 0.4; MOQ: Length 1.25, front width 2.7, back width 2.55; Interdistances: PME–PME 1.35, PLE–PME 0.15, AME–AME 0.2, ALE–AME 0.55, ALE–PLE 0.6, AME–PME 0.45. Ocular area: OAL 4.25, OAW 3.55, and IF 1.55. Body: Clypeus: 0.37; Fovea: 2.32; Labium: long 1.58; wide 1.08; Chelicerae: long 3.08; wide 1.83; Sternum: long 4.3; wide 3.4. Abdomen: long 4.9; wide 3.9. Leg measurements: I: Fe 7.25/ Pa 2.87/ Ti 4.37/ Me 5/ Ta 3.12/ total 22.62. II: 7.25/ 3/ 9.5/ 5.37/ 3/ 28.12. III: 7.37/ 3/ 3.37/ 8/ 3.37/ 25.12. IV: 7.75/ 3.12/ 6.37/ 5.75/ 3.87/ 26.87. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-3-5, d0, p0-0-1, r0-0-4; Me v1-7-5, d0, p1-2-4, r3-3-3; ta v0-0-2, d0, p1-3-5, r3-5-9. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-1-7, d0, p0, r0-6-10; Me v2-8-12, d0, p1-3-3, r5-3-4; ta v0-1-3, d0, p2-4-3, r4-5-14. III—Fe v0, d0, p0, r0; Pa v0, d1-3-29, p0-1-3, r0-0-2; ti v0-0-7, d0-1-11, p0-0-2, r0-2-9; Me v1- 15-18, d0, p2-1-1, r4-5-5; ta v0-0-5, d0, p4-7-10, r6-14- 15; IV—Fe v0, d0, p0, r0; Pa v0, d20-15-9, p2-0-1, r0; ti v2-2-7, d0, p0, r0; Me v6-8-14, d0, p0-1-4, r0-0-2; ta v0-0-4, d0, p4-8-11, r3-9-18. Palp: PA well developed, embolus with three keels (PAc, PI and PS). Basal surface of tegulum with swelling above PA. BTA well developed, placed medially on prolateral tegular surface; prolateral tegulum serrated next to base of embolus; embolar base thin ( Fig. 59 View FIGURE 59 A–C).

FEMALE (MNRJ 1): Total length 12.37; Carapace, long7.37; wide 7.5. Carapace anterior part square.Anterior eye row slightly procurved, posterior row recurved. Short bristles between AME-clypeus, one long bristle between PLE–ALE, short and long bristles between posterior eyes-fovea and short bristles between lateral eyes-edge of carapace ( Fig. 57 B View FIGURE 57 ). Sternum with eight sigilla strongly fused medially, all sigilla very fused to each other ( Fig. 57 C View FIGURE 57 ). Rastellum protuberant, subquadrate, hirsute, with row of spines on edge of rastellum and many spines on dorsal rastellum ( Fig. 57 View FIGURE 57 E–F). Chelicerae with denticles along prolateral row of teeth. Prolateral row with four megateeth and two teeth between three basal megateeth. Retrolateral row with five megateeth and four teeth between four basal megateeth ( Fig. 57 D View FIGURE 57 ). Patella and tibia III with distal developed crowns of thorns ( Fig. 58 View FIGURE 58 A–B). Patella IV with prolaterodorsal spines along extension of article ( Fig. 58 C View FIGURE 58 ). Tibia IV without spines along extension of article ( Fig. 58 D View FIGURE 58 ). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, Tibia, metatarsi, tarsi and palp reddish brown, and abdomen pale gray ( Fig. 57 A View FIGURE 57 ). 32 labial cuspules, 134 on right maxilla and 147 on left. Eyes: Diameters: PME 0.24 PLE 0.4 ALE 0.4, AME 0.16; MOQ: Length 1.32, front width 4.08, back width 3.52; Interdistances: PME–PME 2.12, PLE–PME 0.12, AME–AME 0.16, ALE–AME 1.72, ALE–PLE 0.92, AME–PME 0.96. Ocular area: OAL 6.5, OAW 4.37, and IF 2.62. Body: Clypeus: 0.37; Fovea: 3.87; Labium: long 1.62; wide 1.5; Chelicerae: long 3.25; wide 2.87; Sternum: long 5.37; wide 4.75. Abdomen: long 11.87; wide 9.25. Leg measurements: I: Fe 3.5/ Pa 2.75/ Ti 2/ Me 2.62/ Ta 1.25/ total 12.12. II: 3.5/ 3/ 2.12/ 2.87/ 0.87/ 12.37. III: 4.12/ 2.87/ 0.75/ 3/ 1.12/ 11.87. IV: 5/ 3/ 3.12/ 3.25/ 1.25/ 15.62. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0-2-4, r3-11-8; Me v1-1-3, d0, p9-8-7, r6-8-6; ta v0-0-2, d0, p4-3-2, r5-5-6. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-2-0, d0, p0-0- 1, r14-45-27; Me v0-0-1, d0, p5-9-8, r13-11-6; ta v0-1-4, d0, p6-7-3, r7-6-6. III—Fe v0, d0, p0, r0; Pa v0, d0-3-41, p0, r0-1-35; ti v0, d1-0-22, p0-0-4, r2-22-17; Me v0-3-8, d0-0-3, p6-3-4, r5-15-10; ta v23-22-20, d0, p7-8-9, r5-14- 9; IV—Fe v0, d0, p0, r0; Pa v0, d29-31-10, p0-1-0, r0; ti v0, d0, p0, r0; Me v0-0-2, d0-0-1, p1-7-7, r0; ta v5-13-9, d0, p3-11-9, r0-0-2. Spermathecae: Seminal receptacles slightly asymmetrical, as long as wide, with short ducts. Receptacles bilobed, external lobe subtriangular, bigger than internal one. Pore distribution reaching apical half of each receptacle ( Fig. 59 D View FIGURE 59 ).

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.24–0.32, PLE 0.28–0.40, ALE 0.44–0.60, AME 0.36–0.56; MOQ: Length 1.08–1.25, front width 2.6–3.2, back width 2.44– 2.84; Interdistances: PME–PME 1.24 1.72 , PLE–PME 0.08–0.16, AME–AME 0.16–0.28, ALE–AME 0.48– 0.72, ALE–PLE 0.4–0.64, AME–PME 0.32–0.52. Ocular area: OAL 3.87–5, OAW 3.37–4.8, and IF 1.55–2.83. Body: Total length: 11.37–15.50; Carapace: long 5.5–7.2; wide 5.62–6.87; Clypeus: 0.12–0.37; Fovea: 1.95–2.75; Labium: long 1.05–1.58; wide 1–1.25; Chelicerae: long 1.1–3.08; wide 1.2–2.37; Sternum: long 3.6–4.75; wide 3–4. Abdomen: long 4.9–7.25; wide 3.87–5.87. Leg measurements: I: Fe 5.12–8/ Pa 2.37–3.25/ Ti 3.62–5/ Me 4–5.62/Ta 2.37–3.62/ total 17.75–24.75.II: 5.62–7.75/ 2.5–3.25/ 3.62–9.5/ 4.25–5.87/ 2.75–3.5/ 18,62–28.12. III: 4.37–7.37/ 2.5–3.37/ 2.62–4/ 4.62–8/ 2.75–4.12/ 17– 25.12. IV: 6–8.5/ 2.75–3.62/ 5.12–7/ 5–7.25/ 2.75–4.37/ 21.62–30.75. FEMALES (n=2): Eyes: Diameters: PME 0.24–0.32, PLE 0.36–0.4, ALE 0.4–0.48, AME 0.16–0.2; MOQ: Length 1.32–1.4, front width 3.6–4.08, back width 3.24–3.52; Interdistances: PME–PME 1.88 2.12 , PLE–PME 0.12–0.16, AME–AME 0.16–0.4, ALE–AME 1.12 1.72 , ALE–PLE 0.8–0.92, AME–PME 0.72–0.96. Ocular area: OAL 5.9–6.5, OAW 4.37–4.7, and IF 2.6–2.62. Body: Total length: 13.9; Carapace: long 7.37–8.25; wide 7–7.5; Clypeus: 0.37–0.5; Fovea: 3.62–3.87; Labium: long 1.62–1.7; wide 1–1.5; Chelicerae: long 3.25–4.25; wide 2.75–2.87; Sternum: long 5.37–5.4; wide 4.5–4.75. Abdomen: long 11.87; wide 9.25. Leg measurements: I: Fe 3.5–4.25/ Pa 2.75–2.87/ Ti 2/ Me 2.5–2.62/ Ta 1.25–1.37/ total 12.12–13. II: 3.5–4.37/ 2.87–3/ 2.12/ 2.75–2.87/ 0.87–1.37/ 12.37–13.5. III: 4–4.12/ 2.87–3.37/ 0.75–1.62/ 3–3.12/ 1.12/ 11.87–13.25. IV: 5–5.5/ 3–3.5/ 3.12/ 3.25–3.62/ 1.25–1.37/ 15.62–17.12. Formula 4123. Distribution. BRAZIL: Goiás: Padre Bernardo.S „o Paulo: S„o Luiz do Paraitinga. Minas Gerais: Belo Horizonte and Vioçosa. Rio de Janeiro: Macaé, Cachoeiras do Macacu and Pinheiral ( Map 4 View MAP 4 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus