Long-jawed Orb Weavers ( Tetragnathidae ) | |
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PHOTO COMMENT | |
IDENTIFICATION | |
Identification: | Tetragnathidae (George and Elizabeth Peckham ,1866 ) |
Common Name: | Long-jawed Orb Weavers |
Life Stage: | (A) adult |
PHYLOGENY | |
Phylum: | Arthropoda |
Class: | Arachnida |
Order: | Araneae |
Family: | Tetragnathidae |
Taxon Code: | ARA02343 |
ITIS/TSN: | 82732 |
LOCATION DETAILS | |
Location Name | |
Cerrito Creek, Albany | |
County: | Alameda County |
ECI Site#: | CA01020000 |
RECOGNITION | |
Description | |
They vary in appearance, but those most commonly found are long-legged, thin-bodied spiders. When at rest, they may cling lengthwise along a twig or blade of grass, holding on with the short third pair of legs. The long pairs of legs are extended. | |
BIOLOGY | |
Food | |
Mainly insects. | |
Habitat | |
Members of the genus Tetragnatha typically live in meadows near water, and around the banks of waterways (rivers, lakes, swamps), usually on low-hanging branches and reeds. | |
Nesting Preferences | |
The Web: The long-jawed orb-weaver webs are orb-shaped (concentric circles, with 12-20 spokes radiating from the center to anchor points (such as tree branches)). The angle of the web is typically somewhere between vertical and horizontal. | |
Importance | |
These spiders will bite if threatened, but the bite is not harmful to people. It is recommended that they not be picked up, but rather observed in their natural environment (e.g. - on their web). | |
Range | |
Throughout the United States and Southern Canada. | |
CREDITS | |
Photographer Brad Smith | |
References | |
ITIS. | |