Actinopus rufipes ( Lucas, 1834 )

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: 77-82

publication ID

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

publication LSID

lsid:zoobank.org:pub:D8203766-9E7B-468F-9E75-F21393A1BA3D

persistent identifier

http://treatment.plazi.org/id/0975136A-FFC1-CE0E-FCD5-FD17D9863B7C

treatment provided by

Plazi

scientific name

Actinopus rufipes ( Lucas, 1834 )
status

 

Actinopus rufipes ( Lucas, 1834)  

Figs 1 View FIGURE 1 , 68–72 View FIGURE 68 View FIGURE 69 View FIGURE 70 View FIGURE 71 View FIGURE 72 , Map 5 View MAP 5

Pachyloscelis rufipes Lucas, 1834: 361   , pl. 7C, fig. 1 (holotype ♀, Brazil, MNHN, not located).

Cratoscelis rufipes: Lucas, 1834: 362   , pl. 7, fig. D2.

Sphodros lucasi Walckenaer, 1837: 251   .

Actinopus rufipes: Lucas, 1837: 376   ; Mello-Leit„o, 1923: 27; Bücherl, 1957: 384; World Spider Catalog, 2020.

Note. As the type is lost, the specimens here attributed to A. rufipes   were so identified based on the known geographic range of the species and in morphological characteristics highlighted in both the original description and in the redescription by Mello-Leit„o (1923).

Diagnosis. Males of A. rufipes   resemble those of A. ipioca   ( Fig. 88 View FIGURE 88 A–C), A. itaqui   ( Fig. 91 View FIGURE 91 A–C), A. mesa   ( Fig. 97 View FIGURE 97 A–C) and A. caxiuana   ( Fig. 100 View FIGURE 100 A–C) by BTA placed medially on prolateral tegular surface, those of A. nattereri   ( Fig. 67 View FIGURE 67 A–C), A. itaqui   , A. mesa   , A. caxiuana   and A. utinga   ( Fig. 103 View FIGURE 103 A–C) by PA developed with a pronounced border in prolateral view; they resemble those of A. itaqui   by the equidistant keels in prolateral view; and differ from those of A. nattereri   , A. vilhena   , A. harveyi   ( Fig. 78 View FIGURE 78 A–C), A. mesa   and A. utinga   by the inconspicuous serrated area, represented by few cusps. males differs from those of all species of the group nattereri   by the large area delimited by keels, reaching nearly 35% of tegulum length in prolateral view; serrated area very inconspicuous, represented by few small cusps on retrolateral surface, below embolar base; embolus wide, flattened ( Fig. 72 View FIGURE 72 A–C). Also diagnostic is the palpal patella and tibia, paler than other palpal articles. Females differ from those of other species with non-lobed spermathecae by the triangular receptacle apex ( Fig. 72 D View FIGURE 72 ); coxae, trochanters, femora of legs and palp, darker than other articles (Fig. 01 A).

MALE (IBSP 161468): Total length 18.62; Carapace, long 8.75; wide 8.25. Carapace anterior part tapering. Anterior eye row slightly procurved, posterior row recurved ( Fig.68 B View FIGURE 68 ). Three bristles betweenAME-clypeus. Sternum with eight sigilla strongly fused medially, as a single central spot ( Fig. 68 C View FIGURE 68 ). Rastellum protuberant, inverted V-shaped, hirsute, with two spines apically ( Fig. 68 View FIGURE 68 E–F). Chelicerae with denticles along retrolateral row of teeth. Prolateral row with four megateeth and two basal teeth. Retrolateral row with six megateeth and two denticles between row of megateeth ( Fig. 68 D View FIGURE 68 ). Patella and tibia III with distal crown of developed thorns, not interrupted in middle ( Fig. 69 View FIGURE 69 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 69 A, C View FIGURE 69 ). Tibia IV without spines on dorsal surface and with two clear rows of trichobothria ( Fig. 69 D View FIGURE 69 ). Ventral pseudoscopulae occupying 10% of Tarsi I, 30% of II and 100% of III and IV, without pseudoscopula on all metatarsi. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles; on tarsi III and IV, compact. Carapace, chelicerae, sternum and distal articles of legs, reddish brown; coxae, trochantera, femora and cymbium of legs brown; patella and tibia of palp pale than other articles; abdomen gray ( Fig. 68 A View FIGURE 68 ). Eyes: Diameters: PME 0.3, PLE 0.4 ALE 0.55, AME 0.45; MOQ: Length 1.5, front width 3.5, back width 3.56; Interdistances: PME–PME 2.18, PLE–PME 0.12, AME–AME 0.37, ALE–AME 0.87, ALE–PLE 0.75, AME–PME 0.68. Ocular area: OAL 6.25, OAW 4.91, and IF 3.25. Body: Clypeus: 0.37; Fovea: 3.5; Labium: long 1.75; wide 1.5; Chelicerae: long 5.12; wide 2.5; Sternum: long 5.37; wide 4.75. Abdomen: long 9.25; wide 5.75. Leg measurements: I: Fe 8.12/ Pa 3.75/ Ti 4.75/ Me 5.87/ Ta 3.25/ total 25.75. II: 7.75/ 3.75/ 4/ 5.75/ 3.25/ 24.5. III: 6.5/ 4.12/ 3.62/ 6/ 3.62/ 23.87. IV: 9.12/ 4/ 7/ 6.87/ 3.62/ 30.625. Formula 123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-3, d0, p0, r0; Me v2-4- 4, d0, p0-1-3, r0-0-5; ta v0-0-1, d0, p1-2-2, r1-5-5. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0-1-5; Me v1-2-5, d0, p0-0-2, r5-3-4; ta v0-0-2, d0, p0-2-3, r1-6-4. III—Fe v0, d0, p0, r0; Pa v0, d3-3-21, p0, r0; ti v0-0-2, d0-1-10, p0-0-5, r0-0-5; Me v1-1-6, d0, p1-2-4, r0-2-4; ta v0, d0, p0-6-0, r0-2-5; IV—Fe v0, d0, p0, r0; Pa v0, d11-15-4, p0, r0; ti v0-0-3, d0, p0, r0; Me v1-1-2, d0, p0, r0-0-5; ta v0-0-3, d0, p1-5-8, r0-0-3. Palp: PA developed, embolus robust, with three keels (PAc, PI and PS) equally spaced. Basal surface of tegulum without swelling above PA. PA contiguous to PI in prolateral view. BTA well developed and placed medially on prolateral tegular surface; prolateral tegulum serrated next to base of next to base of embolus; embolar bases thicker ( Fig. 72 View FIGURE 72 A–C). FEMALE ( CAD 77): Total length 14.75; Carapace, long 8.25; wide 8.50. Carapace anterior part square. Anterior eye row slightly procurved, posterior row recurved. Short bristles forming a row 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. 70 B View FIGURE 70 ). Sternum with eight sigilla strongly fused medially, all sigilla very fused to each other ( Fig. 70 C View FIGURE 70 ). Rastellum protuberant, subquadrate, hirsute, with row of spines on edge of rastellum and o lot of spines in dorsal part of rastellum between the row placed on the edge ( Fig. 70 View FIGURE 70 E–F). Chelicerae with eleven denticles along prolateral row of teeth. Prolateral row with four megateeth and two teeth in basal portion. Retrolateral row with six megateeth and one tooth between five and six basal megateeth ( Fig. 70 D View FIGURE 70 ). Patella and tibia III with distal developed crowns of thorns, in patella III interrupted ( Fig. 71 View FIGURE 71 A–B). Patella IV with prolaterodorsal spines along extension of article and two rows of trichobothria ( Fig. 71 C View FIGURE 71 ). Tibia IV without spines and with long bristles on prolaterodorsal surface ( Fig. 71 D View FIGURE 71 ). Carapace, chelicerae, sternum, coxae, trochantera, femora, reddish brown; patellae, tibia, metatarsi, and tarsi yellowish red and abdomen pale brown with many long bristles ( Fig. 70A View FIGURE 70 ). 20 labial cuspules, 147 on right maxilla and 142 on left. Eyes: Diameters: PME 0.32 PLE 0.48 ALE 0.48, AME 0.36; MOQ: Length 1.52, front width 4, back width 3.84; Interdistances: PME–PME 2.24, PLE–PME 0.16, AME–AME 0.44, ALE–AME 1.32, ALE–PLE 0.84, AME–PME 0.84. Ocular area: OAL 7.2, OAW 5.1, and IF 3.62. Body: Clypeus: 0.62; Fovea: 4; Labium: long 2.75; wide 1.87; Chelicerae: long 4.12; wide 3.37; Sternum: long 5.87; wide 5.25. Abdomen: long 9; wide 6.75. Leg measurements: I: Fe 5/ Pa 3.37/ Ti 2.5/ Me 3/ Ta 1.62/ total 15.5. II: 5/ 3.5/ 2.37/ 3/ 1.62/ 15.5. III: 4.37/ 3.87/ 1.75/ 3.25/ 1.12/ 14.37. IV: 6.25/ 4.12/ 4.12/ 4.12/ 1.5/ 20.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0-4-3, r9-12-10; Me v0-0-3, d0, p4-6-4, r7-14-15; ta v0-0-3, d0, p2-3-3, r7- 6-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-2, d0, p0-0-1, r11-23-28; Me v0-0-1, d0, p1-6-5, r11-11-6; ta v0-0-2, d0, p2-6-4, r7-8-4. III—Fe v0, d0, p0, r0; Pa v0, d0-3-33, p0-0-3, r0-0-15; ti v0, d1-0-12, p0-0-3, r5-15- 10; Me v0-0-3, d0-0-4, p0-2-3, r6-13-10; ta v15-17-12, d0-1-2, p2-5-5, r4-6-5; IV—Fe v0, d0, p0, r0; Pa v0, d10- 15-7, p0-1-0, r0; ti v0, d0, p0, r0; Me v0-0-2, d0-0-1, p0- 4-4, r0; ta v6-19-20, d0, p3-5-3, r0-0-3. Spermathecae: Seminal receptacles slightly asymmetrical, as long as wide, with short ducts. Both receptacles without lobes, with triangular apex. Pore distribution reaching less than apical half of each receptacle ( Fig. 72 D View FIGURE 72 ).

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.16–0.32. PLE 0.28–0.4. ALE 0.36–0.60. AME 0.40–0.48; MOQ: Length 1.12–1.50. front width 2.52–3.5. back width 2.44– 3.76; Interdistances: PME–PME 1.52–2.18. PLE–PME 0.8–0.16. AME–AME 0.16–0.4. ALE–AME 0.56–0.95. ALE–PLE 0.52–0.76. AME–PME 0.44–0.68. Ocular area: OAL 2.48–6.25. OAW 2.44–6.12. and IF 2–3.75. Body: Total length: 13.75–18.75; Carapace: long 6.62– 9; wide 6–8.25; Clypeus: 0.12–0.37; Fovea: 2.62–3.5; Labium: long 1.37–1.87; wide 1.12–1.62; Chelicerae: long 2.5–5.12; wide 1.87–2.62; Sternum: long 4.12–5.37; wide 3.62–4.75.Abdomen: long 7–9.25; wide 4.87–7. Leg measurements: I: Fe 6.37–8.12/ Pa 2.87–3.75/ Ti 3.62– 4.75/ Me 4.25–5.87/ Ta 2.5–3.5/ total 19.62–25.75. II: 6.12–7.75/ 2.62–3.75/ 3.62–4.25/ 3.75–5.75/ 2.62–3.62/ 18.75–24.5. III: 4.75–6.5/ 2.75–4.12/ 2.62–3.62/ 4.37–6/ 2.62–3.62/ 17.12–23.87. IV: 6.5–9.12/ 2.87–4/ 5.25–7/ 5.25–6.87/ 3–3.87/ 23.12–30.62. FEMALES (n=3): Eyes: Diameters: PME 0.28–0.4. PLE 0.4–0.48. ALE 0.4–0.52. AME 0.2–0.36; MOQ: Length 1. 2–1.52. front width 3. 82–4. back width 3.08–3.84; Interdistances: PME–PME 1.76–2.24. PLE–PME 0.8–0.16. AME–AME 0.24–0.44. ALE–AME 0.96–1.32. ALE–PLE 0.48–0.84. AME–PME 0.64–0.84. Ocular area: OAL 5. 8–7.2. OAW 4.66–5.1. and IF 2.3–3.62. Body: Total length: 14.75–17.16; Carapace: long 7.3–8,25; wide 7.08–8.5; Clypeus: 0.5– 0.7; Fovea: 3.33–4; Labium: long 2–2.75; wide 1.5–1.87; Chelicerae: long 3.75–4.12; wide 2.75–3.37; Sternum: long 4.66–5.87; wide 4.25–5.25. Abdomen: long 9–9.12; wide 6.37–6.75. Leg measurements: I: Fe 3.37–5/ Pa 2.87–3.35/ Ti 1.87–2.5/ Me 2.25–3/ Ta 1.5–1.62/ total 12.5–15.5. II: 4–5/ 2.87–3.5/ 2–2.37/ 2.37–3/ 1–1.62/ 12.37–15.5. III: 3.87–4.37/ 3–3.87/ 1.12–1.75/ 2.75–3.25/ 1.12–1.25/ 12–14.37. IV: 5.37–6.25/ 3.12–4.12/ 3.12– 4.12/ 3.12–4.12/ 1.37–1.5/ 16.25–20.12. Formula 4123.

Distribution. BRAZIL. Maranh„o: Tutóia. Bahia: Jaborandi. Mato Grosso: Aripuan„. Mato Grosso do Sul: Paranaíba, and Três Lagoas. S„o Paulo: Luiz Antônio. Minas Gerais: Belo Horizonte, and S„o Gonçalo do Rio Preto ( Map 5 View MAP 5 ).

Material examined: BRAZIL. Maranh „o: Tutóia , [2° 45’ S 42° 16’ W], 1♁ 2♀, xi.1936, A. Silvio leg. ( IBSP 103432 View Materials ) GoogleMaps   . Bahia: Jaborandi, [13° 35’ S 44° 32’ W], Veredas do Oeste Bahiano, Refúgio da Vida Silvestre , 1♁, 13.xi.2007, R. Recorder leg. ( IBSP 114491 View Materials ) GoogleMaps   . Mato Grosso: Aripuanã, Chapada Darnadelos , 10º 10’ S 59º 27’ O, 2♁, 02–13.xi.1996, G. Skuk leg. ( MZSP 15428 View Materials ) GoogleMaps   . Mato Grosso do Sul: Paranaíba, [19° 40’ S 51° 10’ W], 1♁, 03.xi.1983, R. R. da Silva leg. ( IBSP 110502 View Materials ); GoogleMaps   três Lagoas , [21° 37’ S 52° 50’ W], Fazenda Canãa, 1♁, F. Lane leg. ( MZSP 5348 View Materials ) GoogleMaps   . Minas Gerais: Diamantina, Parque Estadual do Biribiri , [18º 07’ 13.19”S 43º 34’ 47.69”W], 1♁, A. H. Apolinario & J. P. L. Guadanucci leg. ( CAD 615), GoogleMaps   1♀, 05–10.xi.2012, A. H.Apolinario & J. P. L. Guadanucci leg. ( CAD 614); GoogleMaps   S„o Gonçalo do Rio Preto, Parque Estadual do Rio Preto ( PERP), [18° 9’ 15” S 43° 20’ 50” W], 1♀, 16.iii.2010, Aleatório ( CAD 77); GoogleMaps   2♁, 20–25.x.2010, G. Monteiro, F. Sá, W. F. Silva & J. P. L. Guadanucci leg. ( CAD 264); GoogleMaps   Belo Horizonte, Estaç„o Ecológica da Universidade Federal de Minas Gerais ( UFMG), 19° 58’ S 43° 58’ W, Creche, 1♁, 14.ix.1999 ( UFMG 589 View Materials ) GoogleMaps   ; v.1999, E. S. S. Álvares leg. ( UFMG 583 View Materials )   . S„o Paulo, Luiz Antônio, Estaç„o Ecológica de Jataí ( EEJ), [21º 36’ 54” S 47º 48’ 02” W], 1♁, 6–12.xi.2009, A. G. Cristovão leg. ( IBSP 161461 View Materials , 161462 View Materials , 161463 View Materials , 161464 View Materials , 161465 View Materials , 161466 View Materials , 161468 View Materials , 161469 View Materials , 161470 View Materials , 161471 View Materials , 161472 View Materials , 161473 View Materials , 161474 View Materials , 161475 View Materials , 161476 View Materials , 161477 View Materials ) GoogleMaps   ; 2♁ ( IBSP 161479 View Materials )   ; 3♁ ( IBSP 161467 View Materials , one removed for SEM)   .

R

Departamento de Geologia, Universidad de Chile

UFMG

Universidade Federal de Minas Gerais

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus

Loc

Actinopus rufipes ( Lucas, 1834 )

Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B. 2020
2020
Loc

Pachyloscelis rufipes

Lucas, H. 1834: 361
1834