Actinopus dubiomaculatus Mello-Leitão, 1923

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 : 120-128

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5655613

persistent identifier

https://treatment.plazi.org/id/0975136A-FFFA-CE22-FCD5-FD30D9893B52

treatment provided by

Plazi

scientific name

Actinopus dubiomaculatus Mello-Leitão, 1923
status

 

Actinopus dubiomaculatus Mello-Leitão, 1923

Figs 108–112 View FIGURE 108 View FIGURE 109 View FIGURE 110 View FIGURE 111 View FIGURE 112 , Map 6 View MAP 6

Actinopus dubiomaculatus Mello-Leitão, 1923: 20 (holotype ♂, Franca, S„o Paulo , Brazil, MZSP, not located); World Spider Catalog, 2020.

Note. The material examined can be identified as A. dubiomaculatus by patterns of diagnostic coloration of articles legs, cephalothorax and chelicerae, the average of total length, the size of the ventral metatarsal and tarsal pseudoscopulae and tibia without spines in dorsal view. The material examined can be recognized as A. dubiomaculatus by the geographic distribution in the state of S„o Paulo, with the addition of material provided by the present work extended to Mato Grosso and Rio Grande do Sul.

Diagnosis. Males of A. dubiomaculatus resemble those of A. crassipes ( Fig. 107 View FIGURE 107 A–C) and A. laventana ( Fig. 129 View FIGURE 129 A–C) by PA being continuous to PI, and those of all species of the group crassipes , except A. laventana and A. paranensis ( Fig. 115 View FIGURE 115 A–C), by BTA placed medially on prolateral tegular surface. They resemble those of all species of group crassipes , except A. crassipes , by the serrated area distal to PAc, continuous to proximal area of PAc ( Fig. 112 View FIGURE 112 A–C). Males resemble those of A. pusillus ( Fig. 118 View FIGURE 118 A–C) and A. paranensis by the tibiae, tarsi and metatarsi being paler than the other articles. They differ from those of all other species of the group by the ventral scopulae occupying 25% of the distal portion of tarsi II and metatarsi IV, with diffuse setae; paraembolic apophysis inconspicuous ( Fig. 112 A, C View FIGURE 112 ); basal portion of sternum tapering ( Fig. 108 C View FIGURE 108 ). Females of A. dubiomaculatus ( Fig. 112 View FIGURE 112 D–H) differ from those of A. laventana ( Fig. 129 D View FIGURE 129 ) by the receptacles lacking lateral swelling; the s cutum delicate and slightly sclerotized and occupying ca. 1/3 of abdomen dorsum ( Fig. 110 A View FIGURE 110 ).

MALE (MZSP 7636): Total length 7.79; Carapace, long 3.96; wide 4.22.Carapace anterior part rounded.Eyes. Anterior row slightly procurved, posterior row recurved ( Fig. 108 B View FIGURE 108 ). Few bristles between AME-clypeus and forming recurved rows on interdistances PME–PME and PLE–PLE. Sternum with eight sigilla weakly demarcated and fused medially, and shape of basal portion of sternum tapering ( Fig. 108 C View FIGURE 108 ). Rastellum protuberant, inverted V-shaped, hirsute, with row of strong spines apically ( Fig. 108 View FIGURE 108 E–F). Subunguinal sulci of chelicerae with small and widespread denticles. Prolateral row with teeth decreasing in size in distal-proximal way. Retrolateral row with subequal teeth in size ( Fig. 108 D View FIGURE 108 ). Patella and tibia III with distal crown of well developed thorns, not interrupted in middle ( Fig. 109 View FIGURE 109 A–B). Patellae III and IV with spines on prolaterodorsal face, along of articles, and one dorsal spine ( Fig. 109 A, C View FIGURE 109 ). Tibia IV without spines on dorsal surface ( Fig. 109 D View FIGURE 109 ). Ventral scopula occupying 100% of tarsi III and IV, and occupying 25% of the tarsi II and metatarsi IV, with diffuse bristles in distal area of articles. Carapace and chelicerae pale brown; sternum yellowish-brown, coxae, trochantera, femora and patellae pale brown; tibiae, metatarsi and tarsi orange; Abdomen pale gray, with smooth scutum, where bases of bristles are more chitinized than the rest of abdomen ( Fig. 108 A View FIGURE 108 ). Eyes: Diameters: PME 0.17, PLE 0.21, ALE 0.17, AME 0.3; MOQ: Length 0.67, front width 0.53, back width 1.28; Interdistances: PME–PME 1, PLE–PME 0.06, AME–AME 0.15, ALE–AME 0.44, ALE–PLE 0.23, AME–PME 0.31. Ocular area: OAL 2.9, OAW 2.2, and IF 1.63. Body: Clypeus: 0.16; Fovea: 1.63; Labium: long 0.9; wide 0.72; Chelicerae: long 2.34; wide 1.24; Sternum: long 2.97; wide 2.39. Abdomen: long 3.83; wide 3.4. Leg measurements: I: Fe 4.6/ Pa 1.79/ Ti 2.86/ Me 3.39/ Ta 2.12/ total 14.76. II: 1.77/ 4.31/ 2.71/ 1.96/ 2.82/ 13.57. III: 3.21/ 1.84/ 1.8/ 3.41/ 2.39/ 12.65. IV: 4.41/ 1.94/ 3.05/ 3.86/ 2.47/ 15.73. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v2-3-7, d0, p0-0-1, r0-0-2; Me v2-3-3, d0, p1-1-2, r1-3-4; ta v0-2-3, d0, p1-2-2, r0-2-2. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v3-5-4, d0, p0-0-1, r0-3-4; Me v1-2-4, d0, p2-1-2, r3-3-2; ta v0-0-2, d0, p0-3-5, r0- 3-4. III—Fe v0, d0, p0, r0; Pa v0-0-1, d2-9-17, p0-0-3, r0-0-3; ti v4-1-4, d1-0-13, p1-1-2, r0-0-1; Me v0-4-3, d2- 1-0, p1-0-2, r0-0-4; ta v0-0-1, d0, p1-1-4, r0-2-2; IV—Fe v0, d0, p0, r0; Pa v0-1-1, d18-9-4, p0, r0; ti v2-2-3, d0, p0-1-1, r0; Me v2-2-1, d0, p1-2-2, r0; ta vx, d0, p0-3- 7, r0-1-0. Palp: BTA developed, displaced medially on prolateral tegular surface; embolus with three developed and well demarcated keels (PAc, PI and PS), in dorsal and retrolateral views. Serrated area distal to PAc, covered by PAc in dorsal view. Serrated area apparent in prolateral and retrolateral views, continuous to proximal sector of PAc. Thin tegulum, smooth PA, continuous to PI ( Fig. 112 View FIGURE 112 A–C).

FEMALE ( MCN 13243 View Materials ): Total length 11.74; Carapace, long 4.62; wide 4.9. Carapace anterior part square and posterior part triangular. Eyes. Anterior row procurved, posterior row slightly recurved. Long and short bristles between AME-clypeus forming straight and recurved rows between PME–PME and PLE–PLE. Short bristles between AME–ALE and between lateral eyes-edge of carapace ( Fig. 110 B View FIGURE 110 ). Sternum with eight sigilla strongly fused medially ( Fig. 110 C View FIGURE 110 ). Rastellum protuberant, digitiform, with prolateral part subquadrate, hirsute, with many short spines covering the dorsal rastellum ( Fig. 110 View FIGURE 110 E–F). Small denticles widespread in subunguinal sulci of chelicera. Prolateral row decreasing in size in distal-proximal way. Retrolateral row of teeth, basally, with small denticles in middle of teeth ( Fig. 110 D View FIGURE 110 ). Patella and tibia III with distal developed crowns of thorns ( Fig. 111 View FIGURE 111 A–B). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 111 C View FIGURE 111 ). Tibia IV without spines and with long bristles on dorsal and prolaterodorsal surfaces ( Fig. 111 D View FIGURE 111 ). Without scopula. Carapace, chelicerae, sternum and legs yellowish-brown; abdomen pale brown with a slightly sclerotized scutum, which occupies about 1/3 of the abdomen ( Fig. 110 A View FIGURE 110 ). 14 labial cuspules, 96 on right maxilla and 103 on left. Eyes: Diameters: PME 0.13, PLE 0.24, ALE 0.25, AME 0.19; MOQ: Length 0.81, front width 0,57, back width 1.56; Interdistances: PME–PME 1.23, PLE–PME 0.11, AME–AME 0.19, ALE–AME 0.65, ALE–PLE 0.51, AME–PME 0.52. Ocular area: OAL 4.16, OAW 2.64, and IF 2.25. Body: Clypeus: 0.18; Fovea: 2.26; Labium: long 1.47; wide 1.06; Chelicerae: long 3.32; wide 1.93; Sternum: long 3.24; wide 2.97. Abdomen: long 7.12; wide 5.74. Leg measurements: I: Fe 2.75/ Pa 1.84/ Ti 1.13/ Me 1.64/ Ta 1.17/ total 8.53. II: 2.84/ 1.87/ 1.06/ 1.66/ 1.04/ 8.47. III: 2.67/ 2.15/ 0.64/ 1.73/ 1.1/ 8.29. IV: 3.64/ 2.25/ 1.62/ 2.08/ 1.18/ 10.77. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-1-1, d0, p0-0-2, r1-3-3; Me v0-4-3, d0, p2-4-3, r2-6-3; ta v0-1-3, d0, p3-5-2, r3- 3-4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r9-14-12; Me v0-3-4, d0, p0-3-3, r0-6-4; ta v0-1-4, d0, p4-3-2, r2-2-4. III—Fe v0, d0, p0, r0; Pa v0, d0-1-33, p1- 0-0, r0-6-7; ti v0, d9-10-18, p0-0-2, r1-5-9; Me v0-0-4, d3-6-7, p0, r2-7-6; ta v15-21-13, d6-9-10, p2-4-3, r0-4-5; IV—Fe v0, d0, p0, r0; Pa v0, d19-25-10, p2-2-1, r0; ti v0, d0, p0-2-0, r0; Me v0-0-3, d0-0-2, p0-3-2, r0; ta v1-9-10, d0-2-3, p1-4-3, r0-2-3. Spermathecae: Represented by two seminal receptacles, bilobed, longer than wide, with short duct. External lobes longer than internal lobes. Pore distribution reaching 75% of apical area of each receptacle ( Fig. 112 View FIGURE 112 D–H).

VARIATION

MALES (n=10): Eyes: Diameters: PME 0.14–0.22, PLE 0.16–0.22,ALE 0.15–0.44, AME 0.2–0.39; MOQ: Length 0.56–0.89, front width 0.51–0.78, back width 1.16–1.56; Interdistances: PME–PME 0.87–1.22, PLE–PME 0.03– 0.17, AME–AME 0.11–0.67, ALE–AME 0.39–0.56, ALE–PLE 0.23–044, AME–PME 0.28–0.40. Ocular area: OAL 2.67–4, OAW 1.84–3, and IF 1.44–1.91. Body: Total length: 6.53–12.33; Carapace: long 3.18– 5.33; wide 3.67–5; Clypeus: 0.09–0.22; Fovea: 1.36–2; Labium: long 0.9–1.22; wide 0.7–1.11; Chelicerae: long 1.78–2.78; wide 1.1–1.56; Sternum: long 2.52–3.44; wide 2.13–3. Abdomen: long 3.42–6.89; wide 2.98–5.11. Leg measurements: I: Fe 4–5.56/ Pa 1.64–2.33/ Ti 2.39–3.33/ Me 2.8–4.22/ Ta 2.02–2.78/ total 12.85–17.89. II: 4.05– 5.11/ 1.65–2.22/ 2.39–3.22/ 1.96–4.33/ 2.07–2.82/ 13.16– 17.56. III: 2.96–4/ 1.34–2.33/ 1.8–3.22/ 2.77–4.44/ 1.99– 2.89/ 10.6–16.33. IV: 3.93–5.67/ 1.82–2.44/ 2.84–4.44/ 2.75–4.78/ 2.17–3.22/ 13.51–20.22. FEMALES (n=10): Eyes: Diameters: PME 0.13–0.3, PLE 0.2–0.4, ALE 0.22–0.35, AME 0.14–0.26; MOQ: Length 0.71–1.4, front width 0.44–0.8, back width 1.27–2.61; Interdistances: PME–PME 1.01–2.09, PLE–PLE 0.06–0.25, AME–AME 0.09–0.22, ALE–AME 0.66–1.45, ALE–PLE 0.48–0.85, AME–PME 0.4–1.08. Ocular area: OAL 3.7–5.46, OAW 2.43–3.59, and IF 1.73–3.34. Body: Total length: 10.96– 16.49; Carapace: Length 4.05–6.04; wide 4.16–6.45; clypeus: 0.11–0.34; fovea: 1.83–3.04; Labium: Length 1.25–2.08; wide 0.88–1.49; Chelicera: length 2.65–4; wide 1.72–2.55; Sternum: length 2.86–4.42; wide 2.57– 4.25. Abdomen: length 6.28–9.25; wide 4.51–7.13. Legs: I: Fe 2.4–3.71/ Pa 1.64–2.47/ Ti 1.08–1.7/ Me 1.3–2.16/ Ta 0.79–1.23/ total 7.37–11.16. II: 2.36–3.69/ 1.48–2.46/ 1.06–1.63/ 1.33–2.25/ 0.59–1.31/ 6.93–11.31. III: 2.28– 3.51/ 1.9–2.86/ 0.64–1.21/ 1.26–2.31/ 0.69–1.31/ 7.03– 10.56. IV: 3.09–4.85/ 1.99–2.92/ 1.62–2.51/ 1.01–2.73/ 0.65–1.43/ 9.52–14.29. Spermathecae: Varies subtly in the apex format ( Fig. 112 View FIGURE 112 A–H). Carapace and chelicerae in specimens recently fixed dark-brown; brown sternum; dark-brown legs; tibiae, metatarsi and tarsi orange; abdomen gray.

Distribution. BRAZIL. Minas Gerais; Mato Grosso do Sul: Campo Grande; S„o Paulo: Jaboticabal, Campos do Jord„o, Itu, Pirapora do Bom Jesus, Santana de Parnaíba, Guarulhos, Barueri, Suzano, S„o Paulo, Itapevi, Cotia, Embu, S„o Bernardo do Campo, Praia Grande, Pirassununga; Rio Grande do Sul: Santa Maria, Camobi, Viam„o, Passo do Vigário, Guaíba ( Map 6 View MAP 6 ).

Examined material. BRAZIL: 1♂ ( MZSP 165 View Materials ) ; Minas Gerais: [15º 38’ S 49º 57’ W], 1♂, iii.1962, S. Kawall leg. ( IBSP 103597 View Materials ) GoogleMaps ; Mato Grosso do Sul: Campo Grande , [20° 26’ 59.9994” S 54° 37’ 0.0006” W], 1♂, 21.ii.1993 ( IBSP 110495 View Materials ) GoogleMaps ; S„o Paulo: Jaboticabal, [21° 15’ 59.9976” S 48° 19’ 0.0012” W] 1♂, iii.1954, J. Paranelli leg. ( IBSP 103199 View Materials ); GoogleMaps Brooklin , [21º 40’ 44” S 49º 44’ 33” W], 1♂, 06.ii.1962, F. Grossman leg. ( MZSP 8278 View Materials ); GoogleMaps Boa Esperança do Sul, [21º 59’ S 48º 23’ W], 1♂, 8.vii.1948, Delegacia de Polícia de Boa Esperança leg. ( IBSP 101523 View Materials ); GoogleMaps Campos do Jord „o, [22° 43’ 59.9982” S 45° 34’ 59.9988” W], 1♂, iii.1963, S. Kawall leg. ( IBSP 103646 View Materials ) GoogleMaps ; Itu , [23° 15’ 59.9976” S 47° 19’ 0.0012” W], 1♂, 27.ii.1998, J. Weber leg. ( IBSP 110587 View Materials ) GoogleMaps ; 07.ii.2002, A. C. G. Ribeiro leg. ( IBSP 109529 View Materials ) GoogleMaps ; iii.2006, C. Pavanis L. leg. ( IBSP 113460 View Materials ) ; Centro de Animais Peçonhentos , [23º 15’ 60” S 47º 17’ 59” W], 1♂, 25.i.2005, R. D´Avila leg. ( IBSP 112340 View Materials ) GoogleMaps ; Pirapora do Bom Jesus , [23° 23’ 59.9994” S 47° 0’ 0” W], 1♂ ( IBSP 114530 View Materials ) GoogleMaps ; Santana de Parnaíba , [23º 26’ 39” S 46º 55’ 04” W], 1♂, 20.ii.1987, V. Fernandes leg. ( IBSP 110483 View Materials ) GoogleMaps ; 2♂ ( IBSP 142546 View Materials ); (3 km do Centro de Santana de Parnaíba ) , 1♂, V. 07.ii.1987, Fernandes leg. ( IBSP 110572 View Materials ) ; Guarulhos , [23º 27’ 47” S 46º 31’ 59” W], 1♂, M. Andrade leg. ( IBSP 110560 View Materials ) GoogleMaps ; Barueri , [23° 30’ 59.9976” S 46° 52’ 59.9988” W], 1♂, 20.i.1966, K. Lenko leg. ( MZSP 5706 View Materials ) GoogleMaps ; Suzano , [23° 31’ 59.9982” S 46° 19’ 59.9988” W], 1♂, 04.i.1995, R. Martins leg. ( IBSP 110485 View Materials ) GoogleMaps ; Distrito de Guaianases , [23º 32’ 36” S 46º 24’ 38” W] 1♂, ii.1950, M. Carrera leg. ( MZSP 22117 View Materials ) GoogleMaps ; Ipiranga , [23º 32’ S 46º 38’ W], 1♂ B. A. M. Soares leg. ( MZSP 22116 View Materials ) GoogleMaps ; ii.1924, R. Spitz leg. ( MZSP 3144 View Materials ) ; i.1929, R. Spitz leg.( MZSP22120 View Materials ) ; V.1941, J. Barroso leg. ( MZSP 3142 View Materials ) ; 1941, Nuncio leg. ( MZSP 3160 View Materials ) ; i.1942, Lane leg. ( MZSP 3143 View Materials ) ; 20.ii.1942, G. Pastore leg. ( MZSP 22123 View Materials ) ; F. Lane leg. ( MZSP 22119 View Materials ) ; Horto do Museu do Ipiranga , [23º 32’ 52” S 46º 38’ 09” W], 1♂, 30.iii.1949, Rabello leg. ( MZSP 8276 View Materials ) GoogleMaps ; Itapevi , [23° 33’ S 46° 55’ W], 1♂, 17.iii.1995, C. L. A. Santos leg. ( IBSP 110480 View Materials ) GoogleMaps ; S„o Paulo, [23º 33’ S 46º 37’ W], 1♂, 1944 ( MZSP 8524 View Materials , IBSP 114529 View Materials ); 21.ii.1992, N. P. Emerique leg. ( IBSP 110574 View Materials ); GoogleMaps 27.iii.2002, C. Hulten leg. ( IBSP 119631 View Materials ); Campus da Universidade de S„o Paulo ( USP) GoogleMaps , [23° 33’ 52.0518” S 46° 42’ 51.3396” W], 1♂, 02.iv.2007, L. M. Almeida leg. ( IBSP 113640 View Materials ) GoogleMaps ; Butantan , [23º 35’ 23” S 46º 45’ 24” W], 1♂, J. de Souza leg. ( IBSP 103808 View Materials ) GoogleMaps ; ii.1971, J. Soller Lopes leg. ( IBSP 104091 View Materials ) ; Morumbi , [23° 35’ 46.2798” S 46° 42’ 15.642” W], 2♂, i.1960, C. Ostrand leg. ( IBSP 103525 View Materials ) GoogleMaps ; Cotia , [23° 36’ S 46° 55’ W], 1♂, 05.iii.1990, F. M. G. Silva leg. ( IBSP 110585 View Materials ) GoogleMaps ; 08.i.2006, L. C. dos Santos leg. ( IBSP 113260 View Materials ) GoogleMaps ; Embu , [23° 38’ 59.9994” S 46° 51’ 0” W] 2♂, xii.1980, V. R. von Eickstedt leg. ( IBSP 104534 View Materials ) GoogleMaps ; 1♂ ( IBSP 104225 View Materials ) ; 1♂, V. R. D. Eickstedt leg. ( IBSP 110572 View Materials ) ; são Bernardo do Campo , [23° 41’ 59.9994” S 46° 32’ 59.9994” W] 1♂, ii.1926, F. Spitz leg. ( MZSP 7635 View Materials ) GoogleMaps ; 1♂, iii.1927, R. Spitz leg. ( MZSP 7636 View Materials ) ; Praia Grande , [24° 0’ 0” S 46° 23’ 59.9994” W], 1♂, 1945, M. Carrera leg. ( MZSP 7811 View Materials ) GoogleMaps ; Rio Grande do Sul: Santa Maria , [29º 41’ 04” S 53º 48’ 25” W], Camobi, 1♀, IX–X.1989, N. Samarila leg. ( IBSP 110565 View Materials ) GoogleMaps ; Viam „o, [30° 4’ 59.9982” S 51° 1’ 59.9982” W], 1♀ 1♂, 13.iii.1985, M.C. Balestrin leg. ( MCN 13243 View Materials ) GoogleMaps ; 1♀, 07.iv.1995, C. S. Azevedo leg. ( MCTP 3059 View Materials , MCTP 4834 View Materials ) ; 3♀, 08.iv.1995, C.S. Azevedo leg. ( MCN 28470 View Materials ) ; 1♀, 07.iv.1996, C. S. Azevedo leg. ( MCTP 17681 View Materials ) ; 1♀, 18.iv.1994, R. Balestrin leg. ( MCTP 6222 View Materials ) ; Passo do Vigário , [30° 5’ 26.7144” S 50° 58’ 35.5434” W], 3♀, 22.iii.1993, R. Balestrin leg. ( MCTP 3074 View Materials ) GoogleMaps ; Guaíba , [30° 6’ 51.048” S 2847051° 19’ 41.2068” W], Sert „o Santana, 1♀, 10.iv.1985, M. Rosenau leg. ( MCN 13253 View Materials ).

Material examined (burned in fire). BRAZIL: S„o Paulo : Pirassununga, Cachoeira da Ema, [21º 55’ 01” S 47º 20’ 59” W] 1♂, 03.x.1982, F. Molina leg. ( IBSP 108609 View Materials ); GoogleMaps S„o Paulo [23° 32’ 56” S 46° 38’ 20” W], 1♂ (114528); vii.1975, A. S. Gomes leg. ( IBSP 115434 View Materials ) GoogleMaps .

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

USP

University of the South Pacific

MCN

McNeese State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus

Loc

Actinopus dubiomaculatus Mello-Leitão, 1923

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

Actinopus dubiomaculatus Mello-Leitão, 1923: 20

Mello-Leitao 1923: 20
1923