(Theridion spp.)
Overview • Description • Distribution • Taxonomy
Description |
Theridion are small to medium-sized, 1⁄32″ to 3 ⁄16″ (1 to 5 mm) long, cobweb spiders. Most are light colored and live on plants, some are dark-colored and live in the crevices of rocks and logs. The upper plate on the front part of the body (carapace) is usually slightly longer than wide and does not have a distinct depression in the middle. The rear row of four eyes is straight when viewed from above. The front (anterior) middle (median) eyes (AME) are a little larger or a little smaller than the others. On females, the jaw-like mouthparts (chelicerae) have one or two teeth on the front (anterior) margin and no teeth on the rear (posterior) margin. The legs are long. The abdomen is oval to nearly spherical, usually longer than high, and sometimes wider than long. |
Distribution |
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Sources |
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10/4/2024 |
Taxonomy |
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Class |
Arachnida (arachnids) |
Order |
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Suborder |
Araneomorphae (typical spiders) |
Infraorder |
Entelegynae |
Superfamily |
Araneoidea (orbweavers and allies) |
Family |
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Subfamily |
Theridiinae |
Subordinate Taxa |
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cobweb spider (Theridion dividuum) common house combfoot (Theridion melanurum) different cobweb weaver (Theridion differens) eastern long-legged cobweaver (Theridion frondeum) fence long-legged cobweaver (Theridion murarium) Hawaiian happyface spider (Theridion grallator) holarctic long-legged cobweaver (Theridion hemerobium) hooked long-legged cobweaver (Theridion petraeum) large-spined long-legged cobweaver (Theridion glaucescens) painted cobweb weaver (Theridion pictum) Purcell’s theridion comb-feet spider (Theridion purcelli) pyramidal theridion (Theridion pyramidale) white long-legged cobweaver (Theridion albidum) |
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Synonyms |
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Common Names |
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typical cobweb spiders |
Glossary
Carapace
The hard, upper (dorsal), shell-like covering (exoskeleton) of the body or at least the thorax of many arthropods and of turtles and tortoises. On crustaceans, it covers the cephalothorax. On spiders, the top of the cephalothorax made from a series of fused sclerites.
Chelicerae
The pair of stout mouthparts, corresponding to jaws, in arachnids and other arthropods in the subphylum Chelicerata.
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Alfredo Colon |
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Babette Kis |
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Theridion spp. (typical cobweb spiders) Theridion sp. (typical cobweb spider), Barnes Prairie, Racine Co., Wisconsin. Photo was taken on June 30, 2022. This spider was on the underside of a Solomon's seal leaf at the hedgerow adjacent to the prairie. |
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Spider - Theridion #spider #theridion #örümcek |
About
May 22, 2020 If you have more detailed information about this spider's type and features, please write a comment. |
Visitor Sightings |
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Alfredo Colon 7/7/2024 |
Location: Albany, NY |
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Alfredo Colon 6/10/2024 |
Location: Albany, NY |
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Babette Kis 6/30/2022 |
Location: Barnes Prairie, Racine Co., WI Theridion sp. (typical cobweb spider), Barnes Prairie, Racine Co., Wisconsin. Photo was taken on June 30, 2022. This spider was on the underside of a Solomon's seal leaf at the hedgerow adjacent to the prairie. |
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Alfredo Colon 7/3/2021 |
Location: Woodbury, MN |
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Alfredo Colon 5/30/2021 |
Location: Woodbury, MN |
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Created: 1/2/2023 Last Updated: © MinnesotaSeasons.com. All rights reserved. |