Actinopus itapitocai, 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 : 89-95

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5655595

persistent identifier

https://treatment.plazi.org/id/0975136A-FFD5-CE03-FF77-F8AEDFE53CF3

treatment provided by

Plazi

scientific name

Actinopus itapitocai
status

sp. nov.

Actinopus itapitocai sp. nov.

Figs 79–83 View FIGURE 79 View FIGURE 80 View FIGURE 81 View FIGURE 82 View FIGURE 83 , Map 5 View MAP 5

Type material. Holotype male from [29° 44’ S 57° 05’ W], Uruguaiana , Rio Grande do Sul, Brazil, 15.ii.1973, GoogleMaps E. Huber leg. ( MCN 3112 ). Paratypes: BRAZIL. Goiás: Jataí, [17° 53’ S 51° 42’ W], Fazenda Aceiro , 1♀ GoogleMaps , Equipe DZ leg. ( MZSP 22122 View Materials ). Espírito Santo: [19° 11’ S 40° 18’ W], 2♀ 1J, 19.vi.1920 GoogleMaps , E. Garle leg. ( MZSP 10870 View Materials ); Vila Velha , [20° 20’ S 40° 17’ W], 4♀, 17.viii.1947 GoogleMaps , K. Imagnine leg. ( MZSP 22114 View Materials ); 6♀, 17.viii.1947 , K. Imagnine leg. ( MZSP 22113 View Materials , 1♀ removed for SEM). São Paulo: Tatuí , [23° 21’ S 47° 51’ W], 1♂, ix.1982 GoogleMaps , J. L. Gomes Protta ( IBSP 104405 View Materials ); Ubatuba , [23° 26’ S 45° 05’ W], 11♀ 1J, 02.xii.1968 GoogleMaps , Spreket K. Ramos leg. ( MZSP 22111 View Materials ); São Paulo, [23° 32’ 56” S 46° 38’ 20” W], 1♀, ix.1945 ( MZSP 7513 View Materials ) GoogleMaps ; Ipiranga, [23° 35’ S 46° 36’W], 1♀, i.1926, Spitz leg. ( MZSP 10869 View Materials ); 19.iv.1942 , J. Barroso [ MZSP 22121 View Materials ]; Horto , 1♀, viii.1925 , Hnedeirvalbt leg. ( MZSP 5788 View Materials ); Itapetininga , [23° 34’ S 48° 01’ W], 1♀ GoogleMaps , E. Rabello leg. ( MZSP 22115 View Materials ). Paraná: Curitiba , [25° 25’ S 49° 16’ W], 9♀, ix.1946 GoogleMaps , Goffergé leg. ( MZSP 22112 View Materials ). Rio Grande do Sul: Uruguaiana, Itapitocaí , [29° 47’ S 57° 03’ W], 1♂ 2♀ GoogleMaps , A. Dutra leg. ( IBSP 103433 View Materials ) .

Etymology. The specific name is a noun in apposition from the provenance of one of the paratypes, from the type locality, Uruguaiana, State of Rio Grande do Sul, Brazil.

Diagnosis. Males of A. itapitocai resemble those of A. vilhena ( Fig. 73 A View FIGURE 73 ), A. nattereri ( Fig. 63 A View FIGURE 63 ), A. itaqui ( Fig. 89 A View FIGURE 89 ) and A. caxiuana ( Fig. 98 A View FIGURE 98 ) by the bluishgray color on the dorsal abdomen. Males differ from those species by this pattern been reduced to a spot on anterior third ( Fig. 79 A View FIGURE 79 ); they resemble those of A. vilhena ( Fig. 75 View FIGURE 75 A–C), A. harveyi ( Fig. 78 View FIGURE 78 A–C), A. nattereri ( Fig. 67 View FIGURE 67 A–C), A. xingu ( Fig. 94 View FIGURE 94 A–C) and A. utinga ( Fig. 103 View FIGURE 103 A–C) by the BTA being displaced dorsally in relation to a middle longitudinal line along the prolateral tegular surface ( Fig. 83 View FIGURE 83 A–B); they resemble those of A. harveyi , A. vilhena , A. itaqui ( Fig. 91 View FIGURE 91 A–C), A. xingu and A. utinga by PA contiguous to PI in prolateral view. They differ from those of all other species included in the group nattereri by PS and PI reaching only 30–35% of embolus, as seen on dorsal view; PAc totally covered by PI on dorsal view; and tegulum with a depression on retrolateral surface ( Fig. 83 View FIGURE 83 A–C). Females resemble those of A. ipioca ( Fig. 88 D View FIGURE 88 ) by the bilobed receptacles, with the outer lobe being higher than the inner lobe and differs from those A. ipioca by the pore distribution reaching the border between the basal membrane and receptaces, and by the subquadrate receptacles ( Fig. 83 D View FIGURE 83 )

MALE (MCN 3112): Total length 15.25; Carapace, 6.87; wide 6.75. Carapace anterior part tapering. Anterior eye row slightly procurved, posterior row recurved ( Fig. 79 B View FIGURE 79 ). With few, short and sparse bristles between AMEclypeus, between ALE–ALP, between posterior eyesfovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others ( Fig. 79 C View FIGURE 79 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 79 View FIGURE 79 E–F). Chelicerae with 16 denticles along prolateral row of teeth. Prolateral row with six megateeth. Retrolateral row with six megateeth and three denticles, one the medial teeth and two between the two basal megateeth ( Fig. 79 D View FIGURE 79 ). Patella and tibia III with distal crown of well-developed thorns, not interrupted in middle ( Fig. 80 View FIGURE 80 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 80 A, B View FIGURE 80 ). Tibia IV without spines on dorsal surface ( Fig. 80 D View FIGURE 80 ). Ventral pseudoscopulae occupying 40% of tarsus I, 70% 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 brown with an anterior bluish abdomen dorsally ( Fig. 79 A View FIGURE 79 ). Eyes: Diameters: PME 0.24, PLE 0.44, ALE 0.52, AME 0.32; MOQ: Length 1.24, front width 3.56, back width 3.12; Interdistances: PME–PME 1.92, PLE–PME 0.12, AME–AME 0.24, ALE–AME 1.04, ALE–PLE 0.56, AME–PME 0.72. Ocular area: OAL 5.25, OAW 4, and IF 2.62. Body: Clypeus: 0.37; Fovea: 3; Labium: long 1.75; wide 1.5; Chelicerae: long 3.75; wide 2; Sternum: long 4.75; wide 4.12. Abdomen: long 7.75; wide 6.12. Leg measurements: I: Fe 6.12/ Pa 3/ Ti 3.62/ Me 4.25/ Ta 2.5/ total 19.5. II: 5.75/ 3/ 3.25/ 4.62/ 2.75/ 19.37. III: 4.87/ 3/ 2.25/ 4.75/ 3/ 17.87. IV: 6.75/ 3.25/ 5.37/ 6.37/ 3.5/ 25.25. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v0-0-4, d0, p0-0-4, r0; ta v0, d0, p0-0-4, r0-0-4. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v0, d0, p0, r1- 3-3; ta v0, d0, p0-2-2, r0-3-6. III—Fe v0, d0, p0, r0; Pa v0, d10-15-23, p0-0-1, r0-0-2; ti v0-0-3, d1-0-13, p0-0-2, r0-1-4; Me v0-1-4, d1-2-4, p0, r1-2-3; ta v0, d0, p0-2- 3, r0-3-8; IV—Fe v0, d0, p0, r0; Pa v0, d18-12-6, p1- 1-3, r0; ti v0-0-1, d0, p0, r0; Me v0-1-5, d0, p2-4-3, r0; ta v0, d0, p1-8-7, r1-3-0. Palp: PA developed; embolus thin, flattened, with three keels (PAc, PI and PS) equally spaced and without overlapping. serrated area absent. PA contiguous to PI in prolateral view. BTA well developed, displaced dorsally in relation to middle longitudinal line along prolateral tegular surface ( Fig. 83 View FIGURE 83 A–C).

FEMALE (MZSP 22113): Total length 21.62; Carapace, long 8; wide 7.87. Carapace anterior part square and posterior part triangular. Anterior eye row procurved, posterior row slightly recurved ( Fig. 81 B View FIGURE 81 ). Many short and long 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. Sternum with eight sigilla fused medially, all sigilla very fused to each other ( Fig. 81 C View FIGURE 81 ). Rastellum protuberant, subquadrate, hirsute, with a row of short spines on the edge of rastellum and many short spines over dorsal rastellum ( Fig. 81 View FIGURE 81 E–F). Chelicerae with 8 denticles along prolateral row of teeth. Prolateral row with five megateeth and one tooth, basal to megateeth. Retrolateral row with seven megateeth and two teeth between three basal megateeth ( Fig. 81 D View FIGURE 81 ). Patella III with distal interrupted crown of thorns and tibiae III with distal developed crown of thorns ( Fig. 82 View FIGURE 82 A–B). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 82 C View FIGURE 82 ). Tibia IV without spines and with long bristles along prolaterodorsal surface ( Fig. 82 D View FIGURE 82 ). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi, tarsi and palp reddish brown; Abdomen pale brown with big basal spot of long bristles dorsally ( Fig. 81 A View FIGURE 81 ). 29 labial cuspules, 166 on right maxilla and 189 on left. Eyes: Diameters: PME 0.28, PLE 0.4, ALE 0.32, AME 0.16; MOQ: Length 1.16, front width 3.84, back width 3.48; Interdistances: PME–PME 1.88, PLE–PME 0.2, AME–AME 0.16, ALE–AME 1.4, ALE–PLE 0.68, AME–PME 0.8. Ocular area: OAL 6.5, OAW 4.87, and IF 2.75. Body: Clypeus: 0.37; Fovea: 3.87; Labium: long 1.87; wide 1.75; Chelicerae: long 3.12; wide 2.75; Sternum: long 5.62; wide 5. Abdomen: long 12.12; wide 9.25. Leg measurements: I: Fe 3.62/ Pa 2.5/ Ti 2/ Me 2.5/ Ta 1.5/ total 12.12. II: 2.62/ 3/ 1.75/ 2.5/ 1.12/ 11. III: 4.12/ 3.37/ 1.5/ 2.75/ 1.12/ 12.87. IV: 5.25/ 3.62/ 3.25/ 2.5/ 0.87/ 15.5. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-0-1, d0, p0-5-4, r10-13-7; Me v0-1-2, d0, p9-10-10, r12-9-7; ta v1-2-2, d0, p4-6-3, r7-6-7. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r29-28-18; Me v0, d0, p4-5-4, r14-12-3; ta v0- 0-3, d0, p3-4-4, r3-2-4. III—Fe v0, d0, p0, r0; Pa v0, d0-6- 48, p0-0-4, r0-2-15; ti v0, d1-0-19, p4-0-4, r10-7-15; Me v0-0-3, d10-7-3, p4-3-3, r9-10-13; ta v20-25-12, d0-0-4, p0-2-5, r5-12-6; IV—Fe v0, d0, p0, r0; Pa v0, d24-19-8, p0, r0; ti v0, d0, p0, r0; Me v0-0-3, d0-0-1, p0-1-6, r0; ta v13-16-18, d0, p3-10-5, r0-0-6. Spermathecae: Seminal receptacles slightly asymmetrical, as long as wide, with short ducts. Both receptacles bilobed, with outer lobe higher than inner lobe. Pore distribution reaching border between basal membrane and receptacles ( Fig. 83 D View FIGURE 83 ).

Distribution. BRAZIL. Espírito Santo: Vila Velha. Minas Gerais: Januária. Goiás: Jataí. S„o Paulo: Tatuí, Ubatuba, S„o Paulo, and Itapetininga. Rio Grande do Sul: Uruguaiana. Paraná: Curitiba ( Map 5 View MAP 5 ).

Material examined (burned in fire). Minas Gerais: Januária , [15° 20’ S 44° 14’ W], Riacho da Cruz, 1♂ 1♀ 1J, José Blaser leg. ( IBSP 103434 View Materials ) GoogleMaps .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus