Actinopus caxiuana, 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 : 108-111

publication ID

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

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.5655605

persistent identifier

https://treatment.plazi.org/id/0975136A-FFE6-CE33-FF77-F8C7DA113426

treatment provided by

Plazi

scientific name

Actinopus caxiuana
status

sp. nov.

Actinopus caxiuana View in CoL sp. nov.

Figs 98–100 View FIGURE 98 View FIGURE 99 View FIGURE 100 , Map 5 View MAP 5

Type material. Holotype male from 07º 08.149’ S 55º 24.818’W, Aeroporto, 250m, CastelodosSonhos, Altamira , Pará, Brasil , 24.xi.2005, C. O. Araújo leg. ( MPEG 2538 View Materials ) GoogleMaps . Paratypes: BRAZIL. Pará: Portel , FLONA de Caxiuan „, ECFPn, Parcela do projeto ESECAFLOR, 01º 42’ 30” S 51º 31’ 45” W, 1♂, 15–30.i.2012, D.A. Cunha leg. ( MPEG 22278 View Materials ) GoogleMaps ; Plote PPBio Caxiuan „, [01º 57’ 36.7920” S 51º 36’ 55.0800” W], 1♂, 30.i–13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( UFMG, UFMT, MNRJ) GoogleMaps ; 3♂, 30.i–13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( CHNUFPI, MPEG 22266 View Materials , MZSP) ; 4♂, 30.i– 13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( MPEG 22260 View Materials ) ; 5♂, 30.i–13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( MPEG 22261 View Materials , 22262 View Materials , 22267 View Materials ) ; 6♂, 30.i–13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( MPEG 22256 View Materials , 22257 View Materials , 22263 View Materials , 22265 View Materials ) ; 7♂, 30.i–13.ii.2007, M. A. Ribeiro-Junior & D. L. Arco Verde leg. ( MPEG 22258 View Materials , 22259 View Materials , 22264 View Materials ) ; Jacareacanga , Km 350 da Transamazônica , 05° 54’ 01.296” S 57° 41’ 45.5994” W, 1♂, 2010, N. F. Lo-Man-Hung leg. ( MPEG 22270 View Materials ) GoogleMaps ; Altamira , Castelo dos Sonhos , 07º 08.149’ S 55º 24.818’ W, 4♂, 16.xi.2005, C. O. Araújo leg. ( MPEG 2537 View Materials , 1 View Materials ♂ removed for SEM) GoogleMaps ; 08° 13.054’ S 55° 00.956’ W, 3♂, 13.xi.2005, C. O. Araújo leg. ( MPEG 22268 View Materials , 1 View Materials ♂ removed for SEM) GoogleMaps ; 08° 18’ S 55° 05’ W, 1♂, 11.xi.2005, C. O. Araújo leg. ( MCTP) GoogleMaps ; 08° 20.061’ S 55° 12.875’ W, 1♂, 12.xi.2005, C. O. Araújo leg. ( MPEG 22269 View Materials ) GoogleMaps ; 3♂, 16.xi.2005, C. O. Araújo leg. ( MPEG 2536 View Materials ) ; 3♂ 1J, 13.xi.2005, C. O. Araújo leg. ( MPEG 5526 View Materials ) . Tocantins : Divisa Lajeado / Palmas, Serra do Lajeado, [10º 15’ 23” S 48º 05’ 05” W], 1♂, 25.xi.2002, J. Nunes leg. ( IBSP 110416 View Materials ) GoogleMaps ; Palmas , Taquarussu, [10º 19’ 19” S 48º 10’ 10” W], 1♂, 20.xii.2002, J. Nunes leg. ( IBSP 110413 View Materials , 110414 View Materials ) GoogleMaps .

Etymology. The specific name refers to Floresta Nacional de Caxiuan„, Portel, Pará, Brazil ( Map 5 View MAP 5 ).

Diagnosis. Males of A. caxiuana resemble those of A. vilhena ( Fig. 73 A View FIGURE 73 ), A. itapitocai ( Fig. 79 A View FIGURE 79 ), A. itaqui ( Fig. 89 A View FIGURE 89 ) and A. nattereri ( Figs 63 A View FIGURE 63 , 67 E View FIGURE 67 ) by the bluishgray coloration on dorsal surface of abdomen ( Fig. 98 A View FIGURE 98 ); they resemble A. nattereri , A. ipioca and A. itaqui by the palpal tibia being paler than other articles; they resemble those of A. ipioca ( Fig. 88 View FIGURE 88 A–C), A. rufipes ( Fig. 72 View FIGURE 72 A–C), A. itaqui ( Fig. 37 View FIGURE 37 A–C) and A. mesa ( Fig. 97 View FIGURE 97 A–C) by BTA placed medially on prolateral tegular surface ( Fig. 100 A View FIGURE 100 ) and differ from those of other species in the group nattereri , except A. itaqui , by PS in a horizontal line along the prolateral tegular surface, with a larger keel surface. They differ from those of A. itaqui by a larger spacing between PS–PI and PI being less developed and longer than PS in dorsal view ( Fig. 100 View FIGURE 100 A–C).

MALE (MPEG 2538): Total length 15; Carapace, long 7.62; wide 6.87. Carapace rounded. Anterior eye row slightly procurved, posterior row recurved ( Fig. 98 B View FIGURE 98 ). With few and weak short bristles between AMEclypeus, between ALE–ALP, between posterior eyesfovea and lateral eyes-edge of carapace. Sternum with 10 sigilla fused medially, two anterior and two posterior sigilla more fused than others ( Fig. 98 C View FIGURE 98 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 98 E, F View FIGURE 98 ). Chelicerae with seven denticles along prolateral row of teeth. Prolateral row with seven megateeth. Retrolateral row with six megateeth and one denticle between two basal megateeth ( Fig. 98 D View FIGURE 98 ). Patella and tibia III with distal crown of well-developed thorns, on patella III interrupted in middle and on tibia III not interrupted in middle ( Fig. 99 A, B View FIGURE 99 ). Patellae III and IV with spines on prolaterodorsal face ( Fig. 99 A, C View FIGURE 99 ). Tibia IV without spines on dorsal surface ( Fig. 99 D View FIGURE 99 ). Ventral pseudoscopulae occupying 50% 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 brown; abdomen bluish-dark-gray ( Fig. 98 A View FIGURE 98 ). Eyes: Diameters: PME 0.28, PLE 0.4, ALE 0.52, AME 0.48; MOQ: Length 1.32, front width 3.16, back width 2.8; Interdistances: PME–PME 1.64, PLE–PME 0.2, AME–AME 0.2, ALE–AME 0.68, ALE–PLE 0.6, AME–PME 0.48. Ocular area: OAL 4.62, OAW 3.75, and IF 2.12. Body: Clypeus: 0.25; Fovea: 1.62; Labium: long 1.12; wide 1.75; Chelicerae: long 2.75; wide 2; Sternum: long 4.75; wide 3.75. Abdomen: long 6.62; wide 5.37. Leg measurements: I: Fe 7.5/ Pa 3.12/ Ti 4.62/ Me 4.87/ Ta 3.37/ total 23.5. II: 7/ 3.25/ 4.62/ 5.12/ 3.5/ 23.5. III: 6/ 3.62/ 3.87/ 6.25/ 3.87/ 23.62. IV: 8.37/ 3.75/ 6.25/ 7.12/ 4.25/ 29.75. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v4-4-2, d0, p0-0- 1, r0-0-6; ta v0, d0, p0-1-2, r1-7-5. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0, d0, p0, r0; Me v4-2-3, d0, p0-0-2, r1-2-5; ta v0, d0, p1-2-5, r2-6-5. III—Fe v0, d0, p0, r0; Pa v0, d5-5-21, p0, r0-0-2; ti v0, d1-0-12, p0-0-2, r0; Me v4- 2-5, d0, p0-1-2, r0-1-2; ta v0, d0, p0-3-4, r0-5-4; IV—Fe v0, d0, p0, r0; Pa v0, d16-10-5, p0-0-1, r0; ti v0, d0, p0, r0; Me v2-2-3, d0, p0-2-4, r0-0-1; ta v0, d0, p0-6-7, r0- 3-6. Palp: PA well-developed and bordered, continuous to PAc. Embolus with three keels (PAc, PI and PS). BTA developed, placed medially on prolateral tegular surface; serrated area small, represented by two cusps; embolar bases thin and elongated ( Fig. 100 View FIGURE 100 A–C).

Distribution: BRAZIL. Pará: Altamira, Portel, and Jacareacanga. Tocantins: Divisa Lajeado/Palmas, and Palmas ( Map 5 View MAP 5 ).

UFMG

Universidade Federal de Minas Gerais

UFMT

Universidade Federal de Mato Grosso

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

MCTP

Museu de Ciencias

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus

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