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Long-Jawed Orb Weaver (Tetragnatha spp.)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Long-Jawed Orb Weaver.

 Updated: 9/17/2018; Authored By Staff Writer; Content ¬©www.InsectIdentification.org




Long-Jawed Orb Weavers have big mouths, but make no noise. They hang up-side-down, silently waiting for a meal to drop in.



The Long-Jawed Orb Weaver has an incredibly long set of front of legs. The female's mouth part, the chelicerae, is also unusually long as well. Males have a very short chelicerae.

This spider weaves a small, horizontal web between the stems of a plant or shrub. It lies in wait on a stem, vertically, with its front pairs of legs stretched before it and its hing pairs of legs wrapped around the stem. The spiral web has a hole in the center. Any disturbance will cause the spider to descend.

Females lay their egg sac nearby in a silken cocoon. Once hatched, the spiderlings disperse and weave their own webs on other plants.




Taxonomic Hierarchy
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Arachnida
      Order: Araneae
        Family: Tetragnathaidae
          Genus: Tetragnatha
            Species: spp.
Identifying Information
Scientific Name: Tetragnatha spp.
Category: Spider
Size (Adult; Length): 5mm to 12mm (0.20in to 0.47in)
Colorwheel Graphic Colors: brown, gray, silver, black, white
Descriptors: long, stripes, skinny, biting, venomous
Territorial Map
Alaska  
Hawaii  
Prince Edward Is.  
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Territorial Reach (A-to-Z)
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Canadian National Flag Graphic
Alberta
British Columbia
Manitoba
New Brunswick
Newfoundland and Labrador
Nova Scotia
Ontario
Prince Edward Island
Quebec
Saskatchewan
Mexican National Flag Graphic
Mexico
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.




Spider Anatomy
Graphic showing basic parts of spider anatomy
1
Legs: Spiders have four pairs of legs and these are attached to the cephalothorax.
2
Pedipalps: Small appendages near the mouth used as taste and smell organs.
3
Cephalothorax: Contains eyes, head, mouthparts, and legs.
4
Abdomen: Contains various organs related to digestion, reproduction, and web-making.
5
Spinnerets: Used in the production of spider silk for fashioning webs or catching prey.
NOTE: Unlike insects, spiders have both an endoskeleton (internal) and exoskeleton (external).