A revision of the American spider genus Strotarchus Simon, 1888 (Araneae: Dionycha, Systariinae) Author Bonaldo, Alexandre B. Author Saturnino, Regiane Author Ramírez, Martín J. Author Brescovit, Antonio D. text Zootaxa 2012 3363 1 37 journal article 10.5281/zenodo.214492 1ab7db1e-c6da-4227-a3e7-a9041d8375ed 1175-5326 214492 Strotarchus planeticus Edwards, 1958 Figs. 69 , 110−111 Strotarchus planeticus Edwards, 1958 : 374 , figs. 159, 179, 206. Female holotype from Laguna Madre, 25 miles south-east of Arlington ( 97º6'W , 32º44'N ), Texas, United States , Jun. 13, 1945 , D.E. Hardy & V.L. Hooley coll., deposited in AMNH, not examined. Diagnosis. Females of Strotarchus planeticus are distinguished from those of S. piscatorius by the atrium wider than long, with the posterior margin straight, without a median notch. The thin, relatively long glandular knob is also diagnostic ( Figs. 110, 111 ). Description. Male. Unknown. Female (Laguna Madre, Texas). Carapace orange, cephalic area red brown. Chelicerae red brown, fangs black. Endites and labium red brown, with white distal area. Sternum yellow with brown margins. Legs orange, with ventral face of coxae, metatarsi and tarsi red brown. Abdomen light gray, spinnerets orange. Total length 9.10. Carapace 3.70 long, 2.90 wide. Eye diameters: AME 0.22, ALE 0.22, PME 0.22, PLE 0.22. Chelicerae with 3 promarginal teeth, the median largest, and 2 retromarginal teeth, separated by twice their width. Leg measurements: femur I 3.50/ II 2.90/ III 2.30/ IV 3.50. Leg spination: I—femur d1-1-0, p0-0-1, r0; tibia d0, p1-1-0, r0, v2- 2 -0; metatarsus d0-0-1, p1-1-1-2, r1-2-1, v2-2 - 1m . II—femur d1-1-1-, p0-1-1, r0; tibia d0-1-0, p1-1-0, r1-1-0, v1 r- 2-0; metatarsus d0-1-1, p1-1-2, r0-1-1, v2-2 - 1m . III—femur d1-1-1, p0-1-1-1, r0-1-1-1; tibia d1-1-0, 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, p1-1-0, r1-1-0, v2-2 -1p; metatarsus d0-1-1, p1-1-2, r1-1-2, v2-2 - 1m . Epigynum: atrium oblong; AP large, rounded posteriorly, median slit deep, without lateral notches, anteriorly sub-triangular; CD parallel, with few helicoid folds; GK anteriorly oriented; spermathecae not globose, wider than long ( Figs. 110, 111 ). Variation. Two females: total length 6.80−9.10; carapace 2.90−3.70; femur I 2.50−3.50. Distribution. United States and Mexico . Other material examined. UNITED STATES . Laguna Madre, 25 m . SE of Harlingen [ 97º42'W , 26º11'N ], Texas, United States (from nest of Rodentia Neotoma micropus Baird ), Aug. 17, 1945 , 1 female , D.E. Hardy & V.L. Wooley coll. ( AMNH ); Jun. 18, 1945 , 1 female , D.E. Hardy & V.L. Hooley coll. ( AMNH ); MEXICO . Tamazunchale ( 98º47'W , 21º15'N ), San Luis Potosi, Aug. 17, 1964 , 1 female , J. & W. Ivie coll. ( AMNH ); Jalapa [ 96º55.2'W , 19º31.8'N ], Veracruz, 1948, 1 female , H.M. Wegerer coll. ( AMNH ).