Strotarchus planeticus Edwards, 1958

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 : 31

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).

Figures

FIGURES 66 – 69. Strotarchus monasticus new species, female: 66) epigynum, dorsal. Strotarchus tropicus (Mello-Leitão, 1917), female: 67) epigynum, dorsal. Strotarchus piscatorius (Hentz, 1847), female: 68) epigynum, dorsal. Strotarchus planeticus Edwards, 1958, female: 69) epigynum, dorsal. Scale bar = 0.2 mm. Abbreviations: A ― Atrium; AP ― Atrial pocket; CD ― Copulatory ducts; FD ― Fertilization ducts; GK ― Glandular knob; S ― Spermathecae; SS ― Spermathecae stalk.

FIGURES 106 – 113. Strotarchus piscatorius (Hentz, 1847), male: 106) palp, ventral; 107) palp, retrolateral; female: 108) epigynum, ventral; 109) epigynum, dorsal. Strotarchus planeticus Edwards, 1958, female: 110) epigynum, ventral; 111) epigynum, dorsal. Strotarchus urarina new species, male: 112) palp, ventral; 113) palp, retrolateral. Scale bar = 0.5 mm: 106 - 107, 110 – 113; 0.25 mm: 108 – 109.