Selenops makimaki, Crews, Sarah C., 2011

Crews, Sarah C., 2011, A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean, ZooKeys 105, pp. 1-182 : 39-40

Selenops makimaki sp. n. Figs 45-46Map 5

Type material.

Holotype female: 21 km west of Rizo de Oro, along ridge, southeast of Cerro El Bejucal, near Chiapas border, Oaxaca, México, 8.I.1973, 1615 m, within epiphytic Vriesia sp., K.E. Lucas (CAS).

Other material examined.

MÉXICO: Oaxaca: same data as holotype, 1♀, 1 imm.

Etymology.

This species is named after the word for spider, makimaki, in the indigenous Chimalapas Zoque language from the region of the type locality. The name is to be treated as a noun in apposition.

Diagnosis.

This species can be distinguished from all other species by the presence of a thin median septum, while the region surrounding the median septum is more heavily sclerotized, giving the appearance of a keyhole-shaped opening (Fig. 45). Males unknown.

Description.

Holotype female: Color:carapace yellow, slightly dusky laterally; sternum yellow, darker around border; chelicerae yellow, dusky u-shaped markings occurring midway down; maxillae pale yellow; labium pale yellow; abdomen dorsally dusky yellow, indications of lanceolate stripe, about 3/4 of the way down the length of the abdomen, and two w-shaped chevrons expending to lateral margins, also a dark spot anteromedially, and some white areas present, festoon present; ventrally dusky yellow-grey, no markings; legs yellowish, very faint annulations present, most prominent on tibiae just below patellae of all legs, especially noticeable in legs I and II, anterolateral faces of legs with dark markings, horizontal stripe, prominent on femora I and II, less prominent on legs III and IV, though still visible. Carapace: as long as broad; fovea longitudinal, broad, very shallow. Eyes:AER nearly straight; PER slightly recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.15, ALE 0.08, PME 0.18, PLE 0.23; interdistances AME-PME 0.06, PME-ALE 0.10, ALE-PLE 0.30. PME-PME 1.03. ALE-ALE 1.63; ocular quadrangle AME-AME 0.40, PLE-PLE 1.83; clypeus 0.08 high. Mouthparts:chelicerae with a few stout setae medially and anteriorly; maxillae longer than broad, with tuft of conspicuous setae distally; labium distally rounded. Sternum:0.92 times longer than broad, posteriorly indented. Legs:leg I only slightly shorter than II and III; leg formula 2314; scopulae present on all 4 tarsi and metatarsi and tibiae I and II; tarsi I-IV with strong claw tufts; pr claw toothed, rl claw with fewer teeth; spination: leg I, Fm pr 1 –1– 0, d 1 –1– 1, rl 1 –0– 0; Ti d 0, ventral 2 –2– 2; Mt v 2-2; leg II, Fm pr 1 –0– 0, d 1 –1– 1, rl 0; Ti v 2 –2– 2; Mt v 2-2; leg III, Fm pr 1 –0– 0, d 1 –1– 1, rl, 0 –0– 1; Ti v 1 –1– 0; Mt v 2-0; leg IV, Fm pr 0, d 1 –1– 1, rl 0 –0– 1; Ti v 1-1; Mt v 2-0. Abdomen:with terminal setal tufts. Pedipalp:claw present, with ca. 6 teeth. Epigyne:median septum only slightly sclerotized, coupled with more sclerotized lateral lobes, giving the appearance of a keyhole-shaped opening medially on the epigynal plate, genital openings located laterally at edges of septum; internally, ducts are located laterally, with anteriorly directed finger-like extensions, as well as wider sinuous structures, fertilization ducts located laterally, directed anteriorly, posterodorsal fold present, but barely covers posterior edge of ducts (Figs 45-46). Dimensions: Total length 7.65. Carapace length 3.88, width 3.85. Sternum length 1.90, width 1.75. Abdomen length 3.78, width 2.70. Pedipalp: Fm 1.00, Pt 0.50, Ti 0.75, Ta 0.90, total 3.15. Leg I: Fm 4.00, Pt 1.65, Ti 3.00, Mt 2.60, Ta 1.25, total 12.50. Leg II: Fm 4.60, Pt 1.60, Ti 3.50, Mt 3.00, Ta 1.00, total 13.70. Leg III: Fm 4.50, Pt 1.50, Ti 3.50, Mt 3.00, Ta 1.00, total 13.50. Leg IV: Fm 4.00 Pt 1.25, Ti 3.00, Mt 2.50, Ta 1.00, total 11.75.

Natural history.

This species has been found within epiphytic Vriesia sp.

Distribution.

Known only from the type locality (Map 5).