Hubbardiidae

Distinguished from Protoschizomidae (the other extant schizomid family) by features including female genitalia with a gonopod and spermathecae with lobes; males possess a dorso-ventrally flattened flagellum with posterior processes. The flagellum bears three annuli in females (corrected from earlier descriptions of two). Body plan includes elongated pedipalps with species-specific modifications; Hubbardiinae and Megaschizominae differ in flagellar setae patterns and genital structures.

Highly variable: includes surface-dwelling species in leaf litter, under stones, and in forested areas; also extensive subterranean and troglophile (cave-associated) faunas in karst and semi-arid regions. Specific microhabitats documented include under leaf-covered stones in forests, abandoned arboreal termite nests, and hypogean (subterranean) habitats in mining regions.

Worldwide distribution with centers of diversity in the Neotropics, Australia (especially Western Australian Pilbara), and tropical Asia. Documented from Cuba (59 species, 58 endemics), Ecuador, Colombia, Brazil, Mexico (Chiapas), China (Fujian and Guangdong provinces), and Costa Rica to Venezuela. The introduced species Stenochrus portoricensis has established populations across southern Central America and South America.

Rowlandius potiguar exhibits activity rhythms that have been studied behaviorally; most species are cryptic and secretive given their microhabitat preferences. Stenochrus portoricensis has been documented to disperse widely, with parthenogenesis and ecological tolerance enabling multiple colonization events.

Several species are short-range endemics in regions subject to mining activities, rendering them of high conservation significance. Stenochrus portoricensis has been flagged as potentially invasive due to its widespread distribution and colonization ability.

• ProtoschizomidaeThe other extant family of Schizomida; distinguished by genital and flagellar morphology, particularly female spermathecal structure and male flagellum shape
• Spiders (Araneae)Superficial resemblance due to eight legs and general body form, but schizomids possess a distinctive short flagellum and lack spinnerets and venom delivery structures of spiders

• Schizomida
• short-tailed whipscorpion
• cave arachnid
• subterranean
• troglophile
• parthenogenesis
• conservation
• mining impact

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Gotta Love Those Spiders | Bug Squad
• Two new species of Bamazomus Harvey, 1992 from southern China (Schizomida, Hubbardiidae)
• TWO REMARKABLE NEW SPECIES OF HUBBARDIIDAE COOK, 1899 (ARACHNIDA: SCHIZOMIDA) FROM EASTERN CUBA
• Description of Five New Species of Schizomida, Including a Troglophile Species (Schizomida: Hubbardiidae) from Ecuador
• Taxonomic revision of the genus Mayazomus Reddell & Cokendolpher, 1995 (Schizomida: Hubbardiidae), with description of five new species from Chiapas, Mexico
• Aspects of the Behavior and Activity Rhythms of Rowlandius potiguar (Schizomida: Hubbardiidae)
• A new remarkable short-tailed whip-scorpion species of Piaroa (Arachnida, Schizomida, Hubbardiidae) from the Colombian Caribbean region
• Two new species of Piaroa (Arachnida: Schizomida, Hubbardiidae) from Colombia, with comments on the genus taxonomy and the flagellar setae pattern of Hubbardiinae
• The alien species Stenochrus portoricensis (Schizomida: Hubbardiidae): decreasing the Wallacean shortfall in the New World
• The arachnid order Schizomida in the Brazilian Atlantic Forest: a new species of Rowlandius and new records of Stenochrus portoricensis (Schizomida: Hubbardiidae)
• A systematic revision of Draculoides (Schizomida: Hubbardiidae) of the Pilbara, Western Australia, Part I: the Western Pilbara
• First record of the subfamily Megaschizominae Rowland, 1973 from China, with description of a new species of Megaschizomus Lawrence, 1969 (Schizomida: Hubbardiidae)