Robertus frontatus
(Banks, 1892)
cobweb spider
Robertus frontatus is a small cobweb in the Theridiidae, first described by Nathan Banks in 1892. The was originally placed in the Microneta before being transferred to Robertus. It is one of many understudied theridiid species with limited published biological information.
Pronunciation
How to pronounce Robertus frontatus: /roˈbɛrtus frɔnˈtatus/
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Identification
As a member of the Robertus, this likely exhibits the compact body form and characteristic arrangement typical of the genus, with the positioned close together. Definitive identification requires examination of genitalic structures, as is standard for theridiid . The specific epithet 'frontatus' may refer to a frontal marking or structure, though original description details are not provided in available sources.
Distribution
Recorded from the United States and Canada. GBIF distribution records indicate presence in North America with specific occurrences in the USA and Canada.
Behavior
As a theridiid , it constructs irregular, three-dimensional cobweb snares for capture, though specific web architecture for this has not been documented.
Similar Taxa
- Other Robertus speciesThe Robertus contains multiple North that are morphologically similar and require detailed examination of male and female for reliable differentiation.
- Theridiidae gen. spp.Many small theridiid share the general compact body form and cobweb-building , making -level identification challenging without microscopic examination.
More Details
Taxonomic history
Originally described as Microneta frontata Banks, 1892, this was later transferred to the Robertus. The basionym reflects the historical instability of theridiid generic .