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Spiders

Types of Spiders
    Pholcidae “Daddy Long Legs”
    Black Widow
    Brown Widow

General Information:
    All spiders have 8 legs
    Will form cob webs in basements, corners, and over lamps
    Are considered a beneficial insect because of their prey to other insects
    Do Not have wings or antennae

Prevention:
    Trim weeds around structure and remove debris
    Seal openings and install screens and door sweeps
    Use a vacuum cleaner to remove webs, spiders, and their egg sacs

Daddy Long Legs
    Description
    Body is between 2-10mm in length
    Legs may be up to 50mm long
    Gray to brown in color with chevron “inverted V shape” markings
    Habitat
    Webs are constructed in dark and damp recesses
    Under rocks, loose bark
    Commonly found in warm, dry places
    Windows and attics
    General Information
    The web has no adhesive properties
    Invades webs of other spiders and eats the host, the eggs, or the prey
    Black Widow- Considered the most venomous spider in North America

Description:
    Females
    Not all adult females exhibit the red hourglass on their abdomen
    May have a pair of red spots or no markings at all
    Has larger venom sacs
    Bite is dangerous to humans
    Rarely fatal
    Shiny black body
    Males
    Quarter the size of the female
    Usually gray or brown
    May have hourglass marking, usually yellow, white, or orange
    Bite is not considered dangerous to humans
    Habitat
    Found in moist basements, crawl spaces, and other damp parts of buildings
    Hide in cracks, darkened areas
    Reproduction
    25-400 eggs are deposited in an egg sack
    Dirty cream color
    ½ inch long
    Takes 10 days to a few weeks for the spiderlings to hatch
    Development from egg to adult is 1 ½ months to 11 months
    Brown Widow
    Description
    Lighter in color than the black widow
    Can range from dark brown to black; shades of gray also
    Has “hourglass” marking on underside of the abdomen
    Usually vivid orange or yellowish
    Has a black-and-white “geometric” pattern on dorsal side of abdomen
    Females
    Are dangerous
    Live up to 3 years
    Males
    Live 6 months to 1 year
    Habitat
    Builds web in secluded, protected sites around the home and in woody vegetation
    In empty containers outside a structure
    Mail boxes, pots, buckets
    Hides in garages, storage closets, the underside of outdoor furniture, and rot iron railings
    Birds of paradise plant leaves
    Reproduction    
    Females lay about 80 eggs per sac
    Can make 20 egg sacks over a lifetime