If You Live in These States, Prepare for More of This Deadly Spider, Experts Say

brown recluse spider outdoors - 1

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There are tons of things to love about summer, from spending time at the beach with family and friends to barbecuing in the backyard. Unfortunately, with the warm weather tends to come an uptick in outdoor pests, from garter snakes in your garden to cicadas in your back yard.

And while the vast majority of the insects, reptiles, and other small creatures you encounter during the summer are relatively innocuous, there’s one notable exception to this rule: the brown recluse spider. The venomous arachnids, whose bites can cause tissue necrosis —and, in extremely rare cases, can be fatal , particularly among children—have been particularly active in two states this summer due to high heat conditions.

The spiders are now a common sight in both Illinois and Missouri , Jay Everitt of Rottler Pest Solutions explained to KMOV.com.

“They like these quiet spots of our homes. The closets, the basements, the attic areas,” Everitt explained. However, when temperatures exceed a certain point and attic temperatures get too hot, “[The spiders] start seeking cooler environment and a lot of time that’s the living space.”

However, Illinois and Missouri are far from the only states where you can find this venomous arachnid. According to research published in the Journal of Medical Entomology (JME), the spider is readily found throughout the U.S. * Read on to discover if this venomous spider calls your state home.

*Delaware was not represented in the study data.

RELATED: If You See This Bug, Crush It Immediately, USDA Says .

Church Street in Burlington, Vermont in the afternoon - 2

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Number of spiders submitted to the JME study : 1

Percent brown recluses: 0

The main street of Deadwood, South Dakota with cars and shops in view. - 3

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Number of spiders submitted to the JME study: 1

Percent brown recluses: 0

Lake Sunapee is located within Sullivan County and Merrimack County in western New Hampshire, the United States. It is the fifth-largest lake located entirely in New Hampshire. - 4

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Number of spiders submitted to the JME study: 1

Percent brown recluses: 0

grand forks north dakota - 5

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Number of spiders submitted to the JME study: 1

Percent brown recluses: 0

cityscape photos of Portland, Maine - 6

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Number of spiders submitted to the JME study: 1

Percent brown recluses: 0

The suburban residential districts of Honolulu, Hawaii along the coastline just outside of downtown from about 1000 feet over the Pacific Ocean. - 7

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Number of spiders submitted to the JME study: 1

Percent brown recluses: 0

landscape photo of trees, a glacier, and lake in Grand Teton National Park, Wyoming - 8

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Number of spiders submitted to the JME study: 2

Percent brown recluses: 0

lake ellen wilson in montana - 9

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Number of spiders submitted to the JME study: 2

Percent brown recluses: 0

downtown coeur d'alene idaho - 10

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Number of spiders submitted to the JME study: 2

Percent brown recluses: 0

charleston west virginia skyline - 11

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Number of spiders submitted to the JME study: 3

Percent brown recluses: 0

buildings and walking bridge by a lake in Providence, Rhode Island at night - 12

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Number of spiders submitted to the JME study: 3

Percent brown recluses: 0

Jackson, Mississippi, USA cityscape at dusk. - 13

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Number of spiders submitted to the JME study: 4

Percent brown recluses: 0

hartford connecticut skyline - 14

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Number of spiders submitted to the JME study: 5

Percent brown recluses: 0

building and lakes in downtown St. Paul, Minnesota - 15

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Number of spiders submitted to the JME study: 6

Percent brown recluses: 0

landscape photo of homes and lake in Boston, Massachusetts at dusk - 16

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Number of spiders submitted to the JME study: 8

Percent brown recluses: 0

clouds and trees reflecting in the Prettyboy Reservoir in Baltimore County, Maryland - 17

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Number of spiders submitted to the JME study: 10

Percent brown recluses: 0

Photo of scenic and wildlife viewing tour in Glacier Bay, Alaska. - 18

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Number of spiders submitted to the JME study: 12

Percent brown recluses: 0

city skyline of buildings in downtown Detroit, Michigan at twilight - 19

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Number of spiders submitted to the JME study: 12

Percent brown recluses: 0

Atlantic City skyline including the Revel casino at dawn. Atlantic City located on the Jersey shore is a resort city on Absecon Island in Atlantic County, New Jersey. Atlantic City is known for its two mile long boardwalk, gambling casinos, great nightlife, beautiful beaches, and the Miss America Pageant. - 20

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Number of spiders submitted to the JME study: 14

Percent brown recluses: 0

The skyline of Milwaukee, Wisconsin at sunset - 21

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Number of spiders submitted to the JME study: 16

Percent brown recluses: 0

downtown columbia south carolina - 22

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Number of spiders submitted to the JME study: 17

Percent brown recluses: 0

cityscape photos of bars and restaurants on Bourbon Street in New Orleans, Louisiana at twilight - 23

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Number of spiders submitted to the JME study: 18

Percent brown recluses: 0

park city utah skyline - 24

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Number of spiders submitted to the JME study: 26

Percent brown recluses: 0

cityscape photo of Durham, North Carolina - 25

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Number of spiders submitted to the JME study: 30

Percent brown recluses: 0

cityscape photo of Eugene, Oregon at dusk - 26

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Number of spiders submitted to the JME study: 32

Percent brown recluses: 0

Pier 66 at dusk in downtown Seattle, Washington - 27

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Number of spiders submitted to the JME study: 40

Percent brown recluses: 0

city skyline of and Water of New York Harbor in New York, NY - 28

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Number of spiders submitted to the JME study: 41

Percent brown recluses: 0

cityscape photo of fountain, buildings, and bridge in downtown Jacksonville, Florida - 29

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Number of spiders submitted to the JME study: 120

Percent brown recluses: 0

atlanta georgia skyline - 30

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Number of spiders submitted to the JME study: 32

Percent brown recluses: 3.1

cityscape photo of downtown Fresno, California - 31

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Number of spiders submitted to the JME study: 581

Percent brown recluses: 3.3

reflection of the Rocky Mountains in front of lake in Denver, Colorado - 32

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Number of spiders submitted to the JME study: 19

Percent brown recluses: 5.3

Autumn Morning View of the New Hope-Lambertville Bridge Spanning the Delaware River , New Hope, Pennsylvania - 33

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Number of spiders submitted to the JME study: 19

Percent brown recluses: 10.5

city skyline with a bridge, buildings, and the Kanawha River in Charleston, West Virginia - 34

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Number of spiders submitted to the JME study: 24

Percent brown recluses: 12.5

buildings in and the city skyline of downtown Albuquerque, New Mexico - 35

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Number of spiders submitted to the JME study: 15

Percent brown recluses: 13.3

city skyline on the Cuyahoga River in Cleveland, Ohio at dusk - 36

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Number of spiders submitted to the JME study: 32

Percent brown recluses: 18.2

lake, bridge, and buildings in the downtown Omaha, Nebraska - 37

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Number of spiders submitted to the JME study: 13

Percent brown recluses: 23.1

cityscape photo of downtown Scottsdale, Arizona at night - 38

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Number of spiders submitted to the JME study: 33

Percent brown recluses: 24.2

cityscape photo of Des Moines, Iowa at sunset - 39

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Number of spiders submitted to the JME study: 7

Percent brown recluses: 28.6

tree reflections on a a pond with a mountain behind in Henderson, Nevada - 40

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Number of spiders submitted to the JME study: 31

Percent brown recluses: 29

chicago illinois - 41

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Number of spiders submitted to the JME study: 91

Percent brown recluses: 29.7

birmingham, alabama, roads, city background, greenery - 42

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Number of spiders submitted to the JME study: 25

Percent brown recluses: 32

indianapolis indiana - 43

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Number of spiders submitted to the JME study: 27

Percent brown recluses: 37

nashville tennessee skyline - 44

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Number of spiders submitted to the JME study: 29

Percent brown recluses: 55.2

downtown Austin, Texas - 45

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Number of spiders submitted to the JME study: 142

Percent brown recluses: 59.9

An aerial view of downtown Lexington, Kentucky on a clear day - 46

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Number of spiders submitted to the JME study: 35

Percent brown recluses: 62.9

little rock arkansas skyline - 47

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Number of spiders submitted to the JME study: 15

Percent brown recluses: 66.7

bricktown in oklahoma city, river, - 48

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Number of spiders submitted to the JME study: 43

Percent brown recluses: 74.4

cityscape photo of downtown Manhattan, Kansas - 49

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Number of spiders submitted to the JME study: 56

Percent brown recluses: 76.8

kansas city missouri skyline - 50

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Number of spiders submitted to the JME study: 142

Percent brown recluses: 89.2

RELATED: If You See This Bug, Never Touch It Without Gloves & a Mask, Experts Warn .