The Crevice Weaver Spider Genus Kukulcania (Araneae: Filistatidae)

Abstract

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Phylogeny and biogeography of the ancient spider family Filistatidae (Araneae) is consistent both with long‐distance dispersal and vicariance following continental drift

“…Synapomorphies uniting Filistatidae and Synspermiata include classical characters such as a cheliceral lamina (ch. 37; Magalhaes and Ramírez, 2019, fig. 15), fused chelicerae (ch.…”

“…Curiously, some of these are reversals to primitive character states found in Mesothelae and Mygalomorphae, such as eyes on an ocular mound (ch. 1; Magalhaes and Ramírez, 2019, fig. 10A), presence of the fourth pair of ventral suspensor muscles in the cephalothorax (ch.…”

A new semi-cryptic Filistata from caves in the Levant with comments on the limits of Filistata insidiatrix (Forsskål, 1775) (Arachnida: Araneae: Filistatidae)

“…et al, Filistata (Araneae) from caves in the Levant Drawings were made with the aid of a camera lucida. Material for scanning electron microscopy was prepared and imaged using standard procedures described elsewhere (e.g., Magalhaes & Ramírez 2019).…”

“…The format of description follows Magalhaes & Ramírez (2019), except for leg measurements which are given as total length (femur, patella, tibia, metatarsus, tarsus). Taxonomic descriptions and lists of examined specimens were automatically generated using the spreadsheets provided by Magalhaes (2019; see https://github.com/ivanlfm/spreadsheets-taxonomy).…”

Verified envenomations by crevice weaver spiders (genus Kukulcania): Bites are of minor expression but the spiders are commonly misidentified as medically important brown recluses (genus Loxosceles) in North America

“…Crevice weaver spiders of the genus Kukulcania are found throughout the southern third of the United States with many species in Central and South America ( Magalhaes and Ramires, 2019 ). It is a relatively large spider where the males are tan with long spindly legs and small abdomen while in stark juxtaposition, the females are velvety dark brown to black with stocky legs and robust abdomen, looking like small tarantulas.…”