Epicratinus pegasus, Gonçalves & Brescovit, 2020

Gonçalves, Ricardo Antonio & Brescovit, Antonio Domingos, 2020, Taxonomic review and cladistic analysis of Neotropical spider genus Epicratinus Jocqué & Baert, 2005 (Araneae: Zodariidae) with description of eleven new species, Zootaxa 4886 (1), pp. 1-77: 39-42

publication ID

https://doi.org/10.11646/zootaxa.4886.1.1

publication LSID

lsid:zoobank.org:pub:E8FBC153-BDE4-4404-9167-20B2DB1DCB14

DOI

http://doi.org/10.5281/zenodo.4333224

persistent identifier

http://treatment.plazi.org/id/6868F227-3174-411B-BFB0-78A2EF38E800

taxon LSID

lsid:zoobank.org:act:6868F227-3174-411B-BFB0-78A2EF38E800

treatment provided by

Plazi

scientific name

Epicratinus pegasus
status

sp. nov.

Epicratinus pegasus   sp. nov.

Figs 18–19 View FIGURE 18 View FIGURE 19 .

Type. Male holotype from Ilha do Urubu, 9º23’35”S, 38º12’10”W, Paulo Afonso, Bahia, Brazil, 2008, E. Daniele, deposited in IBSP 20991. Paratype: 1♀, same data of holotype deposited in IBSP 124986 GoogleMaps   .

Additional material examined: BRAZIL, Bahia, Paulo Afonso, Ilha do Urubu , 9º23’35”S, 38º12’10”W, 4♁, 2008, E. Daniele ( IBSP 124983 View Materials ) GoogleMaps   ; 4♁ ( IBSP 124984 View Materials )   ; 5♁ ( IBSP 124985 View Materials )   ; 1♀ ( IBSP 124987 View Materials )   ; Rio de Janeiro, Paraí-ba do Sul, Fazenda Maravilha , 22º12’S, 43º16’W, 1♁, 16–18/VIII/2001, Equipe Biota ( IBSP 54095 View Materials ) GoogleMaps   .

Diagnosis. Males of E. pegasus   sp. nov. are easily recognized by a dorsal apophysis and a retrolateral at the distal border of palpal patella, short RTA outside directed, a great conductor, with tip shaped like Tucano’s beak, TAEB in flap format, flat embolus. Females have the atrium externally shaped like a comma and spermathecae shaped like an inverted wing ( Figs 18 View FIGURE 18 , 19 View FIGURE 19 ).

Etymology. The specific epithet is a noun taken in apposition and is in reference to Pegasus, in mythology, is a winged horse of Perseus in the ancient Greek, symbol of immortality, and the wings refer to the shape of the female spermathecae.

Description. Male (IBSP 20991). Color: uniform brown carapace, brown sternum with a central dark orange part, brown chelicerae, burnt yellow coxae, predominantly brown legs; dorsal abdomen predominantly dark brown with 5 patches (2-2-1) and a large dorsal shield (larger than half abdomen) light brown colored, short bristles throughout the abdomen; abdomen dark brown with two lateral white patches (one on each side), a little sclerotinized, dark brown and orange over the epigastric furrow. Total length 4.00; carapace length 2.2; width 1.5; abdomen length 1.8; maximum length of spinnerets 0.2; chelicerae length 0.7; clypeus height 0.45. Eyes: diameters AME 0.09, ALE 0.1, PME 0.12, PLE 0.1. Interdistances AME-AME 0.06, AME-ALE 0.08, PME-PME 0.06, PME-PLE 0.22, ALE-PLE 0.05. Spinulation: I: Fe d1-2-0, p0-0-1, r0, v0; Pa d0, p0, r0, v0; Ti d0, p0, r0, v1-1-0; Me d0, p0- 0-1, r0-0-1, v2-2-0. II: Fe d1-2-1, p0-0-1, r1-1-1, v0; Pa d0, p0, r0, v0; Ti d0, p0-1-2, r0, v1-1-2; Me d0, p0-1-2, r0, v2-1-2. III: Fe d3-3-2, p3-0-1, r0, v0; Pa d0-0-1, p0-1-0, r0-1-0, v0; Ti d1-1-0, p1-0-1, r1-1-0, v2-2-2; Me d0-1-2, p1-1-1, r1-1-1, v2-2-2. IV: Fe d1-2-1, p0-0- 1, r0-0-1, v0; Pa d0-0-1, p0-1-0, r0-1-0, v0; Ti d1-1-0, p1-1-0, r1-1-0, v2-2-2; Me d1-1-1, p1-1-2, r2-1-2, v2-3-3. Formula: 4123.

Measurements of legs:

Palp. tibia with medium bristles in a row along the retrolateral margin and a long bristle in the middle of the prolateral margin; short ATR directed outwards; cymbium with no concavity, three distal spines; subtegulum with a curved ridge; wide conductor, with tip shaped like Tucano’s beak; TAEB in flap format; lanceolate tegular apophysis; flat embolus, very conspicuous.

Female (IBSP 124986). Color: dark brown carapace, dark orange sternum, reddish brown chelicerae, pale yellow coxae, dark yellow legs; dorsal abdomen predominantly dark brown with 5 white patches (2-2-1) and innumerable pale yellow little dots, short bristles throughout the abdomen; pale white with white speckled dots on the sides, dark brown center like V, a little sclerotinized, light yellow and dark orange above of the epigastric furrow. Total length 6.7; carapace length 3.35; width 2.275; abdomen length 3.2; maximum length of spinnerets 0.4; chelicerae length 0.9; clypeus height 1.05. Eyes: diameters AME 0.125, ALE 0.15, PME 0.125, PLE 0.25. Interdistances AME-AME 0.05, AME-ALE 0.125, PME-PME 0.15, PME-PLE 0.475, ALE-PLE 0.1. Spinulation: I: Fe d1-1-0, p0-0-1, r0, v0; Pa d0, p0, r0, v0; Ti d1-0-0, p0, r0, v1-1-1; Me d0, p0-1-0, r0, v2-2-3. II: Fe d1-1-0, p0-0-1, r0, v0; Pa d0, p0, r0, v0; Ti d1-0-0, p0, r1-0-0, v1-1-1; Me d0, p0-1-0, r0, v2-1-2. III: Fe d1-1-1, p1-0-1, r0-0-1, v0; Pa d0-0-1, p0- 1-0, r0-1-0, v0; Ti d1-1-0, p0-1-1, r0-1-1, v2-2-2; Me d2-2-2, p0-1-1, r0-0-1, v2-2-2. IV: Fe d1-2-1, p0-0-1, r0-0-1, v0; Pa d0-0-1, p0-1-0, r0-1-0, v0; Ti d1-1-0, p0-1-1, r0-1-1, v2-2-2; Me d2-1-2, p0-1-0, r0-1-1, v2-3-2. Formula: 4132.

Measurements of legs:

Epigynum. Atrium circular and comma shaped. Spermathecae in wing shape pointed upwards and with visible chambers.

Variation. Males (n = 10): total length 3.86‾4.1, carapace 2.1‾2.3, femur I 1.32‾1.39. Females (n = 2): total length 6.6‾6.7, carapace 3.32‾3.35, femur I 1.88‾1.9.

Distribution. Brazil (northeast region and center of Rio de Janeiro) ( Fig. 41 View FIGURE 41 ).