Bolostromus valdivia, Dupérré, 2023

Dupérré, Nadine, 2023, Review of the American genus Bolostromus Ausserer, 1875 with the description of fourteen new species (Araneae, Cyrtaucheniidae), Zootaxa 5317 (1), pp. 1-88 : 84-87

publication ID	https://doi.org/ 10.11646/zootaxa.5317.1.1
publication LSID	lsid:zoobank.org:pub:A88A6184-36E3-4FDD-9BE0-862EC7361ED7
DOI	https://doi.org/10.5281/zenodo.8183659
persistent identifier	https://treatment.plazi.org/id/03BC87C1-FF90-1408-96D5-3D460376066E
treatment provided by	Plazi
scientific name	Bolostromus valdivia
status	sp. nov.

Treatment

Bolostromus valdivia new species

Figs 67 View FIGURE 67 , 68 View FIGURE 68 , map. 2 View MAP 2

Type material. Holotype from Ecuador, Manabí Province, Sancan 4km via Puerta al Cielo (-1.273246 -80.605045) 307m, 10.x.2021, hand collected under dead wood an rocks in dry area, E. Tapia, N. Dupérré, A. Tapia, ECFN 8037 ( QCAZ). GoogleMaps

Etymology. The specific name is from the Valdivia culture, one of the oldest settled cultures recorded in the Americas found in the region where the species was collected.

Diagnosis. Females resemble B. hubeni n. sp. in coloration but are distinguished from all species by the combination of the following characters: carapace and abdomen with strong coloration pattern ( Fig. 67A, B View FIGURE 67 ) and internal genitalia with straight elongated spermathecae with small rounded lobes ( Fig. 68B View FIGURE 68 ), while B. hubeni n. sp. carapace without a pattern ( Fig. 28A View FIGURE 28 ) and internal genitalia curved ( Fig. 29A View FIGURE 29 ).

Description. Female (holotype): Total length: 12.49; carapace length: 5.51; carapace width: 4.46; carapace height: 3.19; abdomen length: 6.98. CEPHALOTHORAX: Carapace almost rectangular but wider anteriorly, margin sinuous; pars cephalica dark reddish-black, medially with two reddish bands, smooth; pars thoracica light brown smooth; cephalic groove shallow, without pit; fovea broad, procurved ( Fig. 67B View FIGURE 67 ); caput strongly elevate ( Fig. 68A View FIGURE 68 ). Clypeus height: 0.17. Sternum elongated 3.17/2.34; dark brown laterally, lighter brown medially and basally, reticulate; all sigillae oval, orange-brown ( Fig. 67C View FIGURE 67 ). Labium dark reddish-brown without cuspule. Endites quadrangle, dark reddish-brown with 16 cuspules; serrula not observed. Chelicerae dark reddish-brown; promargin seven teeth and 28 denticles; rastrellum with 14 spines. EYES: AME: 0.17; ALE: 0.28; PME: 0.13; PLE: 0.20; interdistances:AME:0.15;AME-ALE:0.13; PME:0.52; PME-PLE:0.06; LE:0.09; ocular quadrangle:1.04/1.12/0.5. ABDOMEN: Oval, dorsally dark with five double, triangular beige patches and one central, triangular beige patch posteriorly, ventrally light gray ( Fig. 67A View FIGURE 67 ). Spinnerets: median: 0.86; lateral: 1.15/0.79/1.09. LEGS: Light brown, tarsi darker. Coxae I–II with inner short stiff setae ( Fig. 67C View FIGURE 67 ). Metatarsi II without scopulae; tarsi II with scopulae; III–IV without scopulae; palp missing. Tarsal claw teeth (4/5) (3/3) (3/4). LEGS MEASUREMENTS: I missing; II 10.93 (3.60/1.64/2.67/2.01/1.01); III 8.11 (2.67/1.44/1.35/1.60/1.05); IV 13.73 (4.27/1.62/3.61/2.91/1.32). Leg formula: -423. LEGS SPINATION: femur II 1d, III (0); IV with 17 grouped pro-apical spines; patellae I, II, IV (0); III with 9pd, 2r; tibia; II 1-1v, 1vap; III 3p, 1d, 2r, 2-1v, 3vap IV 2r, 2-2-2v; metatarsus II 2-3v, 2vap; III 2p, 1-1-2-3d, 1r, 2-2v, 3vap; IV 2r, 1-1-2-2-1v, 3vap; tarsus II 1v; III 3p, 2r, 2-2-1v; IV 8p, 3r, 2-2-2-2v. GENITALIA: Spermathecae elongated, straight with small rounded lobes sub-apically ( Fig. 68B View FIGURE 68 ).