Strotarchus bolero, Bonaldo, Alexandre B., Saturnino, Regiane, Ramírez, Martín J. & Brescovit, Antonio D., 2012

Bonaldo, Alexandre B., Saturnino, Regiane, Ramírez, Martín J. & Brescovit, Antonio D., 2012, A revision of the American spider genus Strotarchus Simon, 1888 (Araneae: Dionycha, Systariinae), Zootaxa 3363, pp. 1-37 : 35-36

Strotarchus bolero new species

Figs. 118−119

Type material. Female holotype from Palo Bolero, 1200 m , Morelos [99º6.0'W, 18º40.8'N], Mexico, Aug. 14, 1955, B. Malkin coll. and female paratype from 10 km south of Temixco [99º13.8'W, 18º51.0'N], Morelos, Mexico, Jul. 14, 1956, W. Gertsch & V. Roth coll., both deposited in AMNH.

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Females of Strotarchus bolero n. sp. can be readly recognised by the atrium shape, with anterior margin raised and slightly projected medially ( Fig. 118 ).

Description. Male. Unknown.

Female (Holotype). Carapace orange, with darker cephalic area, thoracic groove brown. Chelicerae, endites and labium red brown. Sternum yellow with brown margins. Legs orange. Abdomen light gray, spinnerets orange. Total length 9.50. Carapace 3.50 long, 2.60 wide. Eye diameters: AME 0.24, ALE 0.22, PME 0.20, PLE 0.20. Chelicerae with 3 promarginal teeth, the median largest, and 2 retromarginal teeth, separated by three times their width. Leg measurements: femur I 4.40/ II 3.80/ III 3.40/ IV 4.60. Leg spination: I—femur d1-1-0, p0-1-1-1, r0; tibia d0, p0-0-1, r0, v2-2 -0; metatarsus d0, p0, r0, v2-1 r- 1p. II—femur d0-1-0, p0-1-1-1, r0; tibia d0, p0-0-1, r0, v2-2 -0; metatarsus d0, p1-1-1-0-1, r0-0-1, v2-2 - 1m. III—femur d1-1-1, p0-1-1-1, r0-0-1; tibia d0-1-0, p1-1-0, r1-1-0, v2-2 - 0; metatarsus d0-1-0, p1-1-2, r1-1-2, v2-2 - 1m. IV—femur d1-1-1, p0-0-1, r0-0-1; tibia d0-1-0, p1-1-0, r1-1-0, v2- 2 -2; metatarsus d0-1-0, p1-1-2, r1-1-2, v2-2 - 1m. Epigynum: atrium sub-squared, superposed laterally to posterior border; AP small, posteriorly pointed, median slit deep, ample, without lateral notches, rounded anteriorly; CD divergent, with few helicoid folds; GK rounded, base heavily constricted, laterally oriented; SS enlarged posteriorly; spermathecae not globose, wider than long ( Figs. 118, 119 ).

Variation. Two females: total length 9.50−9.80; carapace 3.50−4.20; femora I 3.60−4.40.

Distribution. Mexico.

Other material examined. None.

Figures

FIGURES 118 – 121. Strotarchus bolero new species, female: 118) epigynum, ventral; 119) epigynum, dorsal. Strotarchus mazamitla new species, female: 120) epigynum, ventral; 121) epigynum, dorsal. Scale bar = 1 mm.