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Hacklemesh Weaver (Callobius spp.)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Hacklemesh Weaver

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The Hacklemesh Weaver spider builds a tangled mess of spider silk into a fluffy web that traps insects.

Updated: 07/06/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
This small brown spider is sometimes mistaken for a Brown Recluse, but it lacks the dark 'violin' silhouette. If there is a visible pattern at all on the abdomen, the Hacklemesh Weaver would have a series of pale chevrons on their abdomen never seen in the Brown Recluse. Like almost every North American spider, it is venomous, but it is not poisonous like the Recluse. Hacklemesh Weavers are not aggressive.

These are small spiders that build silken webs that they tease out into a big mass with one of their legs, like a hair stylist with a comb. Unlike orb weaver webs, hacklemesh webs lack symmetry and design. Despite their lack of elegance, they are still quite effective at catching insect prey.

Hacklemesh Weavers can be found in woodlands under stones and logs, on tree bark or on branches. They sometimes wander into basements and cellars to make a home. Females lay fertilized eggs in a silken sac that is kept on the web and covered in whatever debris she finds nearby.

General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Insect biting icon
Hairy insect icon
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Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Arachnida
      Order: Araneae
        Family: Amaurobiidae
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          Genus: Callobius
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            Species: spp.
Identifying Information
Size, Colors, Features
Scientific Name: Callobius spp.
Category: Spider
Size (Adult; Length): 6mm to 11mm (0.23" to 0.43")
Colorwheel Graphic Colors: brown, red, tan
Descriptors: biting, venomous, hairy

Relative Size Comparison
Typical Size Between 6mm (0.2in) and 11mm (0.4in)
Lo: 6mm
Md: 8.5mm
Hi: 11mm
Territorial Map*
U.S., Canada, and Mexico
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Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Hacklemesh Weaver may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Hacklemesh Weaver. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


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