Sparianthis juruti,

Rheims, Cristina A., 2020, Revision of the spider genus Sparianthis Simon, 1880 (Araneae, Sparassidae Sparianthinae), Zootaxa 4890 (2), pp. 151-191: 176-180

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.4333412

persistent identifier

http://treatment.plazi.org/id/4E338797-8739-FFEC-D8E9-7C32FB46FC41

treatment provided by

Plazi

scientific name

Sparianthis juruti
status

sp. nov.

Sparianthis juruti  sp. nov.

Figs 2–7, 9View FIGURES 1–6View FIGURES 7–10, 93–108View FIGURES 93–96View FIGURES 97–101View FIGURES 102–108, 143View FIGURES 143–144

Type material. Holotype: ³ from Brazil, Pará, Juruti, Platô Capiranga, Linha 168E (-2.4728, -56.2082), 11 August 2008, L. T. Miglio leg. ( MPEG 30650View Materials)GoogleMaps  . Paratypes: 1♀, same locality as holotype, 17 November 2007, N.F. Lo Man Hung leg. ( MPEG 30736View Materials)GoogleMaps  ; 1♀, same locality as holotype, 12 August 2006, N.F. Lo Man Hung leg. ( MPEG 8563View Materials)GoogleMaps  ; 1♀, Brazil, Pará, Juruti, Sítio Barroso (-2.4616, -56.0032), 16–18 June 2007, D.F. Candiani & N.F. Lo Man Hung leg. ( MPEG 30737View Materials)GoogleMaps  ; 1³, same locality as previous specimen, (-2.4643, -56.0024), 14 August 2008, L. T. Miglio leg. ( MPEG 30648View Materials)GoogleMaps  ; 1³, Brazil, Pará, Juruti, Sítio 3 irmãos (-2.4626, -56.0142), 12 August 2008, L. T. Miglio leg. ( IBSP 258331View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 12 August 2008, L. T. Miglio leg. ( IBSP 258332View Materials)GoogleMaps  ; 1♀, Bra-zil, Pará, Juruti, Beneficiamento , ponto 1 (-2.5076, -56.1776), 10 August 2010, N.C. Bastos leg. ( MPEG 30819View Materials)GoogleMaps  ; 1³, Brazil, Pará, Juruti, Beneficiamento , ponto 2 (-2.5076, -56.1776), 8–13 May 2010, B. V. B. Rodrigues et al.leg. ( MPEG 30825View Materials)GoogleMaps  ; 1³, Brazil, Pará, Juruti, Acampamento Mutum (-1.6124, -56.1942), 6 August 2008, N.C. Bastos leg. ( MPEG 30647View Materials)GoogleMaps  .

Additional material examined. BRAZIL: Pará: 1³, Juruti, Sítio Barroso (-2.4616, -56.0032), 16 November 2007, D.F. Candiani & N.F. Lo Man Hung leg. ( MPEG 30679View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 11 February 2007, J.A.P. Barreiros leg. ( MPEG 30731View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 11 February 2007, N.F. Lo Man Hung leg. ( MPEG 30732View Materials)GoogleMaps  ; 2³, 2 juv., same locality as previous specimen, 10 August 2006, D.F. Candiani & N.F. Lo Man Hung leg. ( MPEG 8562View Materials)GoogleMaps  ; 1³, Juruti, Sítio 3 Irmãos (-2.4626, -56.0142), 12 August 2008, L. T. Miglio leg. ( MPEG 30642View Materials)GoogleMaps  ; 2♀, same locality as previous specimen, 12 August 2008, N.F. Lo Man Hung leg. ( MPEG 30656View Materials, 30658View Materials)GoogleMaps  ; 1♀, 1 juv., Juruti, Sítio Barroso (-2.4643, -56.0024), 13 August 2008, L. T. Miglio leg. ( MPEG 30645View Materials)GoogleMaps  ; 2³, same locality as previous specimen, 13 August 2008, L. T. Miglio leg. ( MPEG 30649View Materials, 30652View Materials)GoogleMaps  ; 1³, same locality as previous specimen, 14 August 2008, L. T. Miglio leg. ( MPEG 30654View Materials)GoogleMaps  ; 1³, same locality as previous specimen, 16 November 2007, C.M. Souza leg. ( MPEG 30678View Materials)GoogleMaps  ; 1♀ Juruti, Beneficiamento , ponto 1 (-2.5076, -56.1776), 20 February 2011, V. B. Rodrigues et al. leg. ( MPEG 30815View Materials)GoogleMaps  ; 1♀, Juruti, Igarapé Mutum (-1.6124, -56.1942), 9 Sep-tember 2002, A.B. Bonaldo leg. ( MPEG 30839View Materials)GoogleMaps  ; 1♀, Juruti, Platô Capiranga, Linha 168E (-2.5071, -56.1847), 21 May 2009, N.C. Bastos leg. ( MPEG 30714View Materials)GoogleMaps  ; 1³, 1♀, same locality as previous specimen, 10 August 2008, N.F. Lo Man Hung leg. ( MPEG 30643View Materials, 30646View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 9 August 2008, N.C. Bastos leg. ( MPEG 30651View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 10 August 2008, L. T. Miglio leg. ( MPEG 30655View Materials)GoogleMaps  ; 1³, same locality as previous specimen, 18 November 2007, E.S. Santos & C.M. Souza leg. ( MPEG 30680View Materials)GoogleMaps  ; 1³, same locality as previous specimen, 9 February 2007, J.A.P. Barreiros leg. ( MPEG 30686View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 21 May 2009, N.F. Lo Man Hung leg. ( MPEG 30711View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 18 November 2007, C.M. Souza leg. ( MPEG 30734View Materials)GoogleMaps  ; 1♀, same locality as previous specimen, 17 November 2007, D.F. Candiani leg. ( MPEG 30735View Materials)GoogleMaps  ; 1♀, Juruti, Ramal Pacoval , km 2 (-2.4728, -56.2082), 21 November 2007, N.F. Lo Man Hung leg. ( MPEG 30733View Materials)GoogleMaps  .

Etymology. The specific name refers to the collection locality of the holotype; noun in apposition.

Diagnosis. Males of S. juruti  sp. nov. resemble those of S. picta  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 two times longer than wide (at least three times longer than wide in S. picta  ) ( Fig. 104View FIGURES 102–108). They are further distinguished from all other species of the genus by TBE reduced and embolus with sub-distal pointed projection ( Fig. 105View FIGURES 102–108). Females resemble those of S. humaita  sp. nov. by the epigyne with anterior atrium grooved ( Figs 83View FIGURES 80–85, 106View FIGURES 102–108). They are distinguished from the latter species by atrium rounded anteriorly (trapezoid in S. humaita  sp. nov.) ( Fig. 106View FIGURES 102–108), internal ducts slender, half spermathecae width, and first turn posteriad (internal ducts as wide as spermathecae width and first turn mediad S. humaita  sp. nov.) ( Figs 107–108View FIGURES 102–108).

Description. Male (holotype): Prosoma dark brown suffused with darker brown marbled pattern laterally; fovea dark brown; eye borders black. Chelicerae dark brown. Legs and pedipalps pale brown. Labium and endites yellowish brown, distally lighter. Sternum pale yellowish brown with darker margins. Opisthosoma dark brownish gray; dorsally with dense brown pattern of elongate marks laterally and around cardiac mark and 5–6 median chevrons down posterior half; ventrally with dense pattern of elongated marks laterally and irregular rounded marks medially; muscle sigilla inconspicuous ( Figs 93–94View FIGURES 93–96). Total length 6.5. Prosoma: 3.3 long, 2.8 wide. Opisthosoma: 3.1 long, 1.8 wide. Eyes: diameters: 0.24, 0.18, 0.15, 0.19; interdistances: 0.12, 0.06, 0.27, 0.18, 0.15, 0.07. Legs (1/243): I: 10.8 (3.2, 1.5, 2.7, 2.6, 0.8); II: 10.8 (3.0, 1.5, 2.9, 2.6, 0.8); III: 8.7 (2.7, 1.3, 1.9, 2.1, 0.7); IV: 10.0 (2.9, 1.2, 2.4, 2.6, 0.9). Spination follows the generic pattern. Metatarsus III–IV with ventral distal preening combs. Palp: tibia with prolateral spines long; vRTA small, rounded in retrolateral view; mRTA triangular, distally rounded in ventral view and fin-shaped in retrolateral view, arising closer to vRTA; tegulum retrolaterally indented, without retro-proximal protrusion; TBC wide, keel-like; TBE with apical projection small, short and laminar ( Figs 97–99View FIGURES 97–101, 102–105View FIGURES 102–108).

Description. Female (paratype, MPEG 30653): Coloration pattern as in male, except opisthosoma densely covered by irregular elongate marks, 5–6 barely distinguishable median chevrons on posterior half and one pair of rounded pale brown muscle impressions on each side of cardiac mark; ventrally with elongate marks laterally and three median, wide, longitudinal stripes converging into irregular cup-shaped mark; muscle sigilla inconspicuous ( Figs 95–96View FIGURES 93–96). Total length 7.6. Prosoma: 3.3 long, 3.0 wide. Opisthosoma: 4.2 long, 2.5 wide. Eyes: diameters: 0.25, 0.22, 0.13, 0.20; interdistances: 0.20, 0.12, 0.36, 0.27, 0.16, 0.07. Legs (4213): I: 9.3 (2.8, 1.6, 2.3, 2.1, 0.5); II: 9.5 (3.1, 1.6, 2.2, 2.1, 0.5); III: 8.4 (2.6, 1.4, 1.9, 2.0, 0.5); IV: 10.0 (2.8, 1.3, 2.3, 2.8, 0.8). Spination follows the generic pattern, except metatarsi I–III: v2-0-0. Metatarsus III–IV with ventral distal preening combs. Epigyne: epigynal field sub-rectangular, longer than wide, rounded anteriorly; median septum 1.5 times longer than wide, widest medially with posterior margin rounded ( Figs 100View FIGURES 97–101, 106View FIGURES 102–108). Vulva: glandular projection rounded, arising from duct between copulatory opening and first turn; spermathecae elongate, irregular-shaped ( Figs 101View FIGURES 97–101, 107–108View FIGURES 102–108).

Variation. Males (n = 10): total length 5.5–6.6; prosoma length: 2.9–3.3; femur I length 2.6–3.2. Females (n = 10): total length 6.1–9.2; prosoma length 3.1–3.6; femur I length 2.4–3.0.

Distribution. Known from Brazil, western state of Pará, in the lower Amazon region ( Fig. 143View FIGURES 143–144).

T

Tavera, Department of Geology and Geophysics

V

Royal British Columbia Museum - Herbarium