Strotarchus mazamitla, 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 : 36

Strotarchus mazamitla new species

Figs. 120−121

Type material. Female holotype from Mazamitla [103º1.8'W, 19º55.2'N], Jalisco, Mexico, Aug. 2, 1954, W.J. Gertsch coll., deposited in AMNH.

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

Diagnosis. Females of Strotarchus mazamitla n. sp. differ from those of other species with small, slit-like atrium by the procurved atrial posterior margin and by the unfolded copulatory ducts ( Figs. 120, 121 ).

Description. Male. Unknown.

Female (Holotype). Carapace orange, with cephalic area red brown. Chelicerae red brown, fangs black. Endites and labium brown, distal area white. Sternum yellow with margins red brown. Legs orange. Abdomen light gray with brown transversal dorsal slim stripes. Total length 7.80. Carapace 3.40 long, 2.40 wide. Eye diameters: AME 0.22, 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 3.50/ II 2.80/ III 2.40/ IV 3.40. Leg spination: I—femur d1-1-0, p0-1-1, r0; tibia d0, p0, r0, v1 p-2-0; metatarsus d0, p0, r0, v2-1 p- 1p. II—femur d1-1-0, p0-0-1, r0; tibia d0, p1-1-0, r1-1-0, v0-1p-0; metatarsus d0, p0, r0, v2-2 - 1m. III—femur d1-1-1, p1-1-1, r0- 0-1; tibia d0-1-0, p1-1-0, r1-1-0, v1 p-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 d1-1-0, p1-1-0, r1-1-0, v2-2 -2; metatarsus d0-2-1p, p1-1-2, r1-1-2, v2-2 - 1m. Epigynum: atrium narrow, slit-like; AP small, weakly sclerotised, rounded posteriorly, median slit deep, ample, without lateral notches, rounded anteriorly; CD parallel; GK rounded, base heavily constricted, laterally oriented; SS enlarged posteriorly; spermathecae continuous with SS ( Figs. 120, 121 ).

Distribution. Known only to the type-locality.

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.