Disembolus
Chamberlin & Ivie, 1933
dwarf spiders
Disembolus is a of dwarf in the Linyphiidae, first described in 1933. The genus contains 24 distributed across North America, with most species occurring in the United States and some extending into Canada. As members of the sheet-web weaving family Linyphiidae, these spiders construct horizontal webs to capture . The species, Disembolus stridulans, was described in the original genus description.
Pronunciation
How to pronounce Disembolus: /dɪˈsɛmbələs/
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Identification
Disembolus are small-bodied characteristic of the Linyphiidae , with body lengths typically under 5 mm. Identification to species level requires examination of structures, particularly the male and female . The is distinguished from other North linyphiid genera by specific genitalic described in Millidge's 1981 revision. Specimens are best identified using microscopic examination and comparison with descriptions.
Habitat
in this have been documented in terrestrial across North America. Specific microhabitat preferences vary by species, with records indicating occurrence in forest litter, moss, and other ground-level substrates typical of dwarf habitats.
Distribution
North America; primarily the United States with some extending into Canada. Documented from: USA (all 24 species), Canada (D. corneliae, D. hyalinus, D. sacerdotalis).
Behavior
The Disembolus stridulans possesses stridulatory organs, suggesting sound production . As linyphiid , species in this construct sheet webs for capture.
Ecological Role
Predatory that contribute to control of small in ground-level and litter .
Similar Taxa
- Other Linyphiidae generaMany North dwarf share small size and sheet-web building ; Disembolus is distinguished by specific genitalic and the presence of stridulatory organs in at least the .
More Details
Taxonomic History
The was established by Chamberlin and Ivie in 1933 with Disembolus stridulans as . A major revision by A.F. Millidge in 1981 added 19 new species and significantly expanded the genus concept. G.B. Edwards described one additional species in 1999.
Etymology
The name 'Disembolus' does not have a clearly documented etymology in the original description, though the suffix '-bolus' appears in several Chamberlin and Ivie genus names from this period.