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BROWN RECLUSE
SPIDER
BLACK WIDOW
SPIDER
HOBO
SPIDER
GRASS
SPIDER
FEMALE
MOUSE SPIDER
MALE
MOUSE SPIDER
BLACK
HOUSE SPIDER
WOLF
SPIDER
FEMALE
TRAP-DOOR
GARDEN
ORB-WEAVING
SAINT ANDREW'S CROSS
HUNTSMAN
SPIDER
Brown Recluse Spiders ...deadly and aggressive
Venom toxicity - the
brown recluse venom can cause significant cutaneous injury with tissue
loss and necrosis.
Habitat - brown recluse
is found in the United States from the east to the west coast, with
predominance in the south.
Spider Identification -
an adult spider is 1/4 to 3/4 inch in body - a dark violin shape is
located on the top of the leg attachment region with the neck of the
violin pointing backward toward the abdomen. Unlike most spiders that
have 8 eyes, the brown recluse has 6 eyes arranged in pairs - one pair
in front and a pair on either side.
CLICK HERE - FIRST AID - Brown Recluse Spider Bite
Black Widow Spiders ...highly venomous - can be deadly
Venom toxicity - the
Back Widow Spider can inflict a painful bite which can be fatal,
especially to the young and elderly. An effective anti-venom was
developed in 1956.
Only a small
amount of venom can cause serious illness, as the poison attacks the
nervous system. Systemic envenomisation usually results in headache,
nausea, vomiting, abdominal pain, pyrexia and hypertension.
The pain around
the bite area can be excruciating or it may go unnoticed. First aid and
medical attention should be sought as soon as possible, if bitten. If
you have heart condition or other heart problem, you may need
hospitalization.
Spider Identification -
the body of an adult black widow is about 1/2 inch long. The female
black widow is normally shiny black, with a red hourglass marking on the
underside of the abdomen. The marking may range in color from yellowish
orange to red and its shape may range from an hourglass to a dot.
Habitat - prefers
woodpiles, rubble piles, under stones, in hollow stumps, sheds and
garages. Indoors it can be found in undisturbed, cluttered areas in
basements and crawl spaces.
CLICK HERE - FIRST AID - Black Widow Spider Bite
Hobo Spiders :
venomous - dangerous?
Venom toxicity -
although the bite of the hobo spider is initially painless, the bite can
be serious. After 24 hours, the bite develops into a blister and after
24-36 hours, the blister breaks open, leaving an open, oozing
ulceration. Typically when the venom is injected, the victim will
experience an immediate redness, which develops around the bite. The
most common reported symptom is severe headache. Other symptoms can
include nausea, weakness, fatigue, temporary memory loss and vision
impairment. In any case, first aid and medical attention should be
sought, if bitten, as and when any adverse health effects are observed.
Spider Identification -
they are brown in color and the adults measure roughly 1/3 to 2/3 inch
in body length and 2/3 to 2 inches in leg span. Their abdomens have
several chevron shaped markings. Males are distinctively different from
females in that they have two large palpi (mouth parts) that look like
boxing gloves. Females tend to have a larger and rounder abdomen when
compared to males.
Habitat - they can be
found anywhere in Washington, Oregon, Idaho, Montana, Wyoming, Utah and
Colorado. They rarely climb vertical surfaces and are uncommon above
basements or ground level.
CLICK HERE - FIRST AID - Hobo Spider Bite
Funnel Web
Grass Spiders: low risk, non-aggressive
Venom toxicity - the
bite of these spiders is of low risk to humans.
Spider Identification -
are common outdoors and are occasionally found indoors. They are
generally brownish or grayish with light and dark stripes near the head.
They have long spinnerets and are moderate-sized (3/4 inch long). Grass
spiders construct a large sheet web with a funnel they use as a retreat.
These webs are commonly built on the ground, around steps, window wells,
foundations, and low shrubs.
Habitat - These spiders
are often called grass spiders because they construct their webs in tall
grass, heavy ground cover and the branches of thick shrubs. Rarely will
a funnel web spider be seen indoors, except for an occasional wandering
male. They are found mostly in the Pacific Northwest states.
CLICK HERE - FIRST AID - Funnel Web Grass Spider
Bite
Mouse Spiders ...venomous - painful bite
Venom toxicity - known
to cause severe illness, especially to young children - similar to
Red-Back Spider. Although normally not aggressive, the male mouse spider
will bite if provoked, and should be considered dangerous to humans. It
has large hard fangs which can cause a deep painful bite. First aid and
medical attention (ambulance) should be sought as soon as possible.
Spider Identification -
a medium to large spider of up to 1 and 1/2 inches in body length. The
male Mouse Spider often has a bright red head and elongated fangs.
Habitat - Mouse spiders
are ground dwellers with burrows of more than 3 feet deep. The male
often wanders about during the day on open ground, especially after
rain, in search of females.
CLICK HERE - FIRST AID - Mouse Spider Bite
Black House Spiders ...venomous - nausea
Venom toxicity - the
bite of the Black House Spider is poisonous but not lethal. Certain
people bitten experience severe pain around the bite site, heavy
sweating, muscular pains, vomiting, headaches and giddiness. First aid
and medical attention (ambulance) should be sought as soon as possible.
Spider Identification -
adults are about 1/2 inch in body length and of a dark brown to black
velvet textured appearance.
Habitat - this spider
spins a lacy, messy web and is prefers dry habitats in secluded
locations. It is commonly found in window framing, under eaves, gutters,
in brickwork, sheds, toilets and among rocks and bark. Electric lights
attract their prey - moths, flies, mosquitoes and other insects.
CLICK HERE - FIRST AID - Black House Spider Bite
Wolf Spiders ...venomous - non-aggressive
Venom toxicity - the
bite of the Wolf Spider is poisonous but not lethal. Although
non-aggressive, they bite freely if provoked and should be considered
dangerous to humans. The bite may be very painful. First aid and medical
attention should be sought as soon as possible, particularly as to
children or the elderly.
Spider Identification -
an adult is 1/2 inch to more than 1 inch in body length - mottled gray
to brown in color, with a distinct Union Jack impression on its back.
The female carries it's young on its back.
Habitat - this spider is
a ground dweller, with a burrow retreat. It has a roving nocturnal
lifestyle to hunt their prey and can move very rapidly when disturbed.
Commonly found around the home, in garden areas with a silk lined
burrow, sometimes with a lid or covered by leaf litter or grass woven
with silk as a little fence around the rim of the burrow.
CLICK HERE - FIRST AID - Wolf Spider Bite
Trap-Door Spiders ...low risk -
non-aggressive
Venom toxicity - the
bite of the Trap-Door Spider is of low risk (non toxic) to humans. It is
a non-aggressive spider - usually timid but may stand up and present
it's fangs if harassed. Rarely bites - but if so it can be painful.
Spider Identification -
an adult is about 1 and 1/2 inches in body length - brown to dark brown
in color - heavily covered with fine hairs. The male has distinct boxing
glove-shaped palps, that is, the two "sensory feelers" at front of its
head.
Habitat - this spider is
a ground dweller, with a burrow retreat lined with silk of up to 10
inches in depth and around 1 inch in width - prefers nesting in drier
exposed locations - often has a wafer-like lid on the burrow entrance.
Trap-Door Spiders are commonly found in the drier open ground areas
around the home.
CLICK HERE - FIRST AID - Trap Door Spider Bite
Orb-Weaving Spiders ...low risk -
non-aggressive
Venom toxicity - the
bite of Orb-Weaving Spiders is of low risk (not toxic) to humans. They
are a non-aggressive group of spiders. Seldom bite. Be careful not to
walk into their webs at night - the fright of this spider crawling over
one's face can be terrifying and may cause a heart attack, particularly
to the susceptible over 40 year olds.
Spider Identification -
an adult is about 2/3 to more than 1 inch in body length - has a bulbous
abdomen - often colorful - dark to light brown pattern. The common
Golden Orb-Weaver Spider has a purplish bulbous abdomen with fine hairs.
Habitat - often found in
summer in garden areas around the home - they spin a large circular web
of 6 feet or more, often between buildings and shrubs, to snare flying
insects, such as, flies and mosquitoes.
CLICK HERE - FIRST AID - Orb-Weaving Spider Bite
St Andrews Cross Spiders ...low risk -
non-aggressive
Venom toxicity - the
bite of the St Andrews Cross is of low risk (non-toxic) to humans. They
are a non-aggressive group of spiders.
Spider Identification -
adult 1/4" to 1/2" in body length - abdomen striped yellow and brown -
as illustrated. The St Andrews Cross Spider usually sits, upside down,
in the middle of its web forming a cross - as illustrated.
Habitat - this spider is
a web-weaver usually found in summer in garden areas around the home. It
is considered beneficial as it spins a large web to snare flying
insects, such as flies and mosquitoes.
CLICK HERE - FIRST AID - St Andrews Cross Spider
Bite
Huntsman Spiders ...low risk -
non-aggressive
Venom toxicity - the
bite of Huntsman Spiders is of low risk (non toxic) to humans. They are
a non-aggressive group of spiders. However, a large individual can give
a painful bite. Beware in summer when the female Huntsman Spider is
guarding her egg sacs or young.
Spider Identification -
an adult varies greatly around 1/2" in body length - has long legs - the
diameter of an adult including legs may reach 2" - the first 2 pairs of
legs are longer than rear two - it is hairy - buff to beige brown in
color, with dark patches on the body.
Habitat - a hunter that
prefers to live under the flaking bark of trees, under flat rocks and
under eaves or within roof spaces of buildings. The Huntsman Spider
often wanders into homes and is found perched on a wall. It is a shy,
timid spider that can move sideways at lighting-fast speed when
disturbed.
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