Bolostromus laheredia, 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 : 9

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.8153789
persistent identifier	https://treatment.plazi.org/id/03BC87C1-FFCB-1456-96D5-3ACA02630762
treatment provided by	Plazi
scientific name	Bolostromus laheredia
status	sp. nov.

Treatment

Bolostromus laheredia new species

Figs 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 , map 1 View MAP 1

Type material. Male holotype from Costa Rica, La Heredia, La Selva Biol. Sta., 13.iii.1987, D.M. Olson ( MCZ 71157 View Materials ). Paratype: COSTA RICA: J, La Heredia, La Selva (near Puerto Viejo), IV. 1986, W. Eberhard ( MCZ 71139 View Materials ) .

Etymology. The specific name is a noun in apposition taken from the type locality, La Heredia in Costa Rica.

Diagnosis. Males most resemble B. panamanus but are distinguished by the combination of the following combination characters: tibiae I with 4–5 ventral spines ( Fig. 2D View FIGURE 2 ); eyes on mound ( Fig. 2C View FIGURE 2 ); palpal bulb round and embolus tip strongly curved apically ( Fig. 3C–E View FIGURE 3 ). Whereas B. panamanus has two ventral spines on tibiae I ( Fig. 7D View FIGURE 7 ); eyes not on prominent mound ( Fig. 7C View FIGURE 7 ); palpal bulb thinner and tip sinuous ( Fig. 8C–E View FIGURE 8 ).

Description. Male (holotype): Total length: 4.16; carapace length: 2.10; carapace width: 1.74; carapace height: 0.9; abdomen length: 2.06. CEPHALOTHORAX: Carapace almost rectangular slightly wider medially, margin sinuous; pars cephalica orange-brown; pars thoracica light orange-brown, smooth; cephalic groove not well defined, without pit medially; fovea broad, procurved ( Fig. 2A View FIGURE 2 ); caput not strongly elevated ( Fig. 2C View FIGURE 2 ). Clypeus height: 0.1. Sternum 1.32/0.99, yellow, smooth; all sigillae rounded, inconspicuous ( Fig. 2B View FIGURE 2 ). Labium yellow without cuspule. Endites quadrangle; yellow with 13 cuspules; serrula not observed. Chelicerae dark reddish-orange; promargin six teeth and 10 denticles; rastrellum with seven spines. EYES: AME: 0.14; ALE: 0.19; PLE: 0.13; PME: 0.07; interdistances: AME: 0.05; AME-ALE: 0.01; PME: 0.28; PME-PLE: 0.03; LE: 0.02; ocular quadrangle: 0.59/0.58/0.28. ABDOMEN: oval, dark gray dorsally, and light beige ventrally ( Fig. 1A, B View FIGURE 1 ). Spinnerets: median spinnerets: 0.17; lateral spinnerets: 0.32/0.31/0.39. LEGS: Leg I, femur, patellae, and tibiae dark orange-brown, metatarsi and tarsi yellow; leg II femur orange-brown, patellae to tarsi orange; leg III–IV without a pattern, uniformly yellow. Coxae I–II without inner short stiff setae. Metatarsi I–II with half scopulae ( Fig. 2D View FIGURE 2 ); tarsi I–II with thick complete scopulae ( Fig. 2D View FIGURE 2 ); III–IV without scopulae. Tarsal claw teeth (6/9) (8/3) (5/3) (5/2). LEGS MEASUREMENTS: I 7.06 (2.03/0.93/1.63/1.43/1.04); II 5.93 (1.69/0.70/1.48/1.12/0.94); III 4.39 (1.24/0.62/0.7 5/1.00/0.78); IV 6.39 (1.79/0.62/1.68/1.44/0.86); leg formula: 1423. LEGS SPINATION: femur I–III (0); IV with 6 grouped pro-apical spines; patellae I 1v, II, IV (0); III with 9p, 1r; tibia I 1-1-1-1v, 3rl; II 1v, 2vap; III 1d, 1-1v, 2vap; IV 2-2v, 2vap; metatarsus I (0); II 1v, 1vap; III 3p, 1-1-2-3d, 2r, 1-1-2v, 2vap; IV 2r, 1-1v, 3vap; tarsus I, II (0); III 1-1-1v; IV 1v. GENITALIA: Palp: 1.26/0.5/1.02/0.45; bulb: 0.48/0.24. Femur slightly longer than tibiae, darker than other palpal segments; cymbium with three apical spines ( Fig. 3A, B View FIGURE 3 ); bulb globose; embolus short with curved tip ( Fig. 3C–E View FIGURE 3 ).