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Species Trachelas tranquillus

Sac Spider? Worcester County MA - Trachelas tranquillus Front view - Trachelas tranquillus - female Trachelas tranquillus - female Trachelus? - Trachelas tranquillus Trachelus tranquillus - Trachelas tranquillus - female Spider - Trachelas tranquillus Spider on shed - Trachelas tranquillus Broad-faced sac spider? - Trachelas tranquillus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynes )
Family Trachelidae
Genus Trachelas
Species tranquillus (Trachelas tranquillus)
Other Common Names
Broad-Faced Sac Spider
Synonyms and other taxonomic changes
Explanation of Names
Latin: "quiet, calm, tranquil"
epigyne, ventral view

epigyne, dorsal view
This spider ranges from New England south to Georgia and Alabama and west to Kansas and Minnesota.
This species prefers warm and dry habitats. It can be found inside rolled leaves, on fences, under stones and boards, and will frequently enter houses by accident in the autumn
Life Cycle
Females will deposit a white egg sac containing about 30 to 50 eggs in September or October.
Will not bite unless handled or provoked.
There are records of secondary infection associated with the bite, which may result from the spider's propensity for feeding on dead arthropods. Typically, the bite results in redness and some swelling, similar to a bee or wasp sting.