Sparianthis picta ( Simon, 1887 ),

Rheims, Cristina A., 2020, Revision of the spider genus Sparianthis Simon, 1880 (Araneae, Sparassidae Sparianthinae), Zootaxa 4890 (2), pp. 151-191: 183-184

publication ID

https://doi.org/10.11646/zootaxa.4890.2.1

publication LSID

lsid:zoobank.org:pub:5EF7FF4A-0857-415F-B30F-DA2910F5B6EB

DOI

http://doi.org/10.5281/zenodo.4333394

persistent identifier

http://treatment.plazi.org/id/4E338797-8700-FFD0-D8E9-7F51FAF1FA78

treatment provided by

Plazi

scientific name

Sparianthis picta ( Simon, 1887 )
status

comb. nov.

Sparianthis picta ( Simon, 1887)  comb. nov.

Figs 117–127View FIGURES 117–121View FIGURES 122–127, 143View FIGURES 143–144

Pseudosparianthis picta Simon, 1887: 473 

(Syntypes 1³, 1♀, Peru, Loreto, Pebas [-3.3201, -71.8609] andGoogleMaps  Brazil, Amazonas , S ã o Paulo de Olivença [-3.4740, -68.9614], Mathan leg., MNHN 7213, examined). World Spider Catalog 2020.GoogleMaps 

Additional material examined. PERU: Loreto: 1³, San Juan Bautista, Carretera Iquitos-Nautla , OTAE (-4.0008, -73.4409), 10 April 2013GoogleMaps  , C.A. Rheims & R. P. Indicatti leg. ( IBSP 165063View Materials)  .

Diagnosis. Males of S. picta  resemble those S. juruti  sp. nov. by the palpal tibia with strong medial-retrolateral spine ( Figs 104View FIGURES 102–108, 124View FIGURES 122–127). They are distinguished from the latter species by the spine at least three times longer than wide (two times longer than wide in S. juruti  sp. nov.) ( Fig. 124View FIGURES 122–127). They are further distinguished from all other spe-cies of the genus by short embolus with wide, ventral, hyaline membrane ( Fig. 123View FIGURES 122–127). Females resemble those of S. granadensis  by the epigyne with median septum light bulb-shaped and anterior atrium wider than long ( Figs 70View FIGURES 69–70, 125View FIGURES 122–127). They are distinguished from the latter species by oval shape of the anterior atrium (rectangular in S. granadensis  ) ( Fig. 125View FIGURES 122–127) and presence of three pairs of ventral spines on leg metatarsi I–II (two pairs in S. granadensis  ).

Redescription. Male (IBSP 165053): Prosoma brown, suffused with dark marbled pattern laterally. Chelicerae brown. Legs and pedipalps slightly lighter than prosoma. Labium brown, distally pale yellow. Endites pale yellow. Sternum pale yellow with slightly darker margins. Opisthosoma brownish cream colored; dorsally with scattered elongated marks laterally, on anterior half, few spots around cardiac mark and irregular marks scattered on posterior half; ventrally with few spots close to spinnerets and V-shaped lines of muscle sigilla extending along most of opisthosoma length ( Figs 117–118View FIGURES 117–121). Total length: 6.7. Prosoma: 3.0 long, 2.6 wide. Opisthosoma: 3.6 long, 1.7 wide. Eyes: diameters: 0.26, 0.17, 0.13, 0.19; interdistances: 0.17, 0.04, 0.34, 0.20, 0.13, 0.05. Legs (2143): I: 11.1 (3.2, 1.4, 2.9, 2.9, 0.7); II: 11.5 (3.3, 1.5, 3.0, 3.0, 0.7); III: 9.2 (2.8, 1.1, 2.3, 2.4, 0.6); IV: 10.9 (3.1, 1.1, 2.6, 3.1, 1.2). Spination follows the generic pattern except metatarsi I–II: v2-2-2. Metatarsus III with single ventral distal spine; metatarsus IV with ventral distal preening comb. Palp: tibia with prolateral spines long; vRTA reduced to small bump (best seen in retrolateral view); mRTA triangular; tegulum retrobasally indented, without retro-proximal protrusion, with hyaline lamina between TBE and TBC; TBC wide, keel-like, protruding retrolaterally; TBE squared, with apical projection widened and twisted ( Figs 119–124View FIGURES 117–121View FIGURES 122–127).

Redescription. Female (MNHN, syntype): Coloration pattern as in male, mostly darker. Total length: 7.7. Prosoma: 3.1 long, 2.6 wide. Opisthosoma: 4.2 long, 2.2 wide. Eyes: diameters: 0.20, 0.18, 0.12, 0.18; interdistances: 0.16, 0.14, 0.32, 0.22, 0.16, 0.08. Legs (2143): I: 10.2 (2.8, 1.5, 2.8, 2.5, 0.6); II: 10.3 (3.0, 1.5, 2.5, 2.6, 0.7); III: 8.2 (2.5, 1.2, 1.8, 2.1, 0.6); IV: 9.4 (2.6, 1.1, 2.2, 2.7, 0.8).Spination follows the generic pattern except tibiae I–II: v2-2- 2-2; tibia III: d0-0-1; metatarsi I–II: p1-0-0; v2-2-2. Metatarsus III–IV with ventral distal preening combs. Epigyne: epigynal field rectangular, slightly longer than wide; anterior atrium oval ( Fig. 125View FIGURES 122–127). Vulva: internal ducts slender, half spermathecae width, with first turn laterad; glandular projection arising from duct close to copulatory opening; spermathecae rounded ( Figs 126–127View FIGURES 122–127).

Variation. Males (n=2): total length: 6.7–7.0; prosoma length: 3.0–3.1; femur I length 3.1–3.2.

Distribution. Known from northeastern Peru (Loreto) and northwestern Brazil (Amazonas) ( Fig. 143View FIGURES 143–144).

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Sparianthis

Loc

Sparianthis picta ( Simon, 1887 )

Rheims, Cristina A. 2020
2020
Loc

Pseudosparianthis picta

Simon, E. 1887: 473
1887