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.
49 | Vermont
ShutterstockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
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48 | South Dakota
iStockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
47 | New Hampshire
DenisTangneyJr / iStockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
46 | North Dakota
ShutterstockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
45 | Maine
ShutterstockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
44 | Hawaii
iStockNumber of spiders submitted to the JME study: 1
Percent brown recluses: 0
43 | Wyoming
ShutterstockNumber of spiders submitted to the JME study: 2
Percent brown recluses: 0
42 | Montana
Shutterstock/Danita DelmontNumber of spiders submitted to the JME study: 2
Percent brown recluses: 0
41 | Idaho
ShutterstockNumber of spiders submitted to the JME study: 2
Percent brown recluses: 0
40 | West Virginia
ShutterstockNumber of spiders submitted to the JME study: 3
Percent brown recluses: 0
39 | Rhode Island
ShutterstockNumber of spiders submitted to the JME study: 3
Percent brown recluses: 0
38 | Mississippi
iStockNumber of spiders submitted to the JME study: 4
Percent brown recluses: 0
37 | Connecticut
ShutterstockNumber of spiders submitted to the JME study: 5
Percent brown recluses: 0
36 | Minnesota
ShutterstockNumber of spiders submitted to the JME study: 6
Percent brown recluses: 0
35 | Massachusetts
iStockNumber of spiders submitted to the JME study: 8
Percent brown recluses: 0
34 | Maryland
ShutterstockNumber of spiders submitted to the JME study: 10
Percent brown recluses: 0
33 | Alaska
iStockNumber of spiders submitted to the JME study: 12
Percent brown recluses: 0
32 | Michigan
ShutterstockNumber of spiders submitted to the JME study: 12
Percent brown recluses: 0
31 | New Jersey
iStockNumber of spiders submitted to the JME study: 14
Percent brown recluses: 0
29 | South Carolina
ShutterstockNumber of spiders submitted to the JME study: 17
Percent brown recluses: 0
28 | Louisiana
Sean Pavone / ShutterstockNumber of spiders submitted to the JME study: 18
Percent brown recluses: 0
27 | Utah
ShutterstockNumber of spiders submitted to the JME study: 26
Percent brown recluses: 0
26 | North Carolina
ShutterstockNumber of spiders submitted to the JME study: 30
Percent brown recluses: 0
25 | Oregon
ShutterstockNumber of spiders submitted to the JME study: 32
Percent brown recluses: 0
24 | Washington
ShutterstockNumber of spiders submitted to the JME study: 40
Percent brown recluses: 0
23 | New York
iStockNumber of spiders submitted to the JME study: 41
Percent brown recluses: 0
22 | Florida
ShutterstockNumber of spiders submitted to the JME study: 120
Percent brown recluses: 0
21 | Georgia
ShutterstockNumber of spiders submitted to the JME study: 32
Percent brown recluses: 3.1
20 | California
iStockNumber of spiders submitted to the JME study: 581
Percent brown recluses: 3.3
19 | Colorado
iStockNumber of spiders submitted to the JME study: 19
Percent brown recluses: 5.3
18 | Pennsylvania
George Oze / AlamyNumber of spiders submitted to the JME study: 19
Percent brown recluses: 10.5
17 | Virginia
ShutterstockNumber of spiders submitted to the JME study: 24
Percent brown recluses: 12.5
16 | New Mexico
ShutterstockNumber of spiders submitted to the JME study: 15
Percent brown recluses: 13.3
15 | Ohio
ShutterstockNumber of spiders submitted to the JME study: 32
Percent brown recluses: 18.2
14 | Nebraska
ShutterstockNumber of spiders submitted to the JME study: 13
Percent brown recluses: 23.1
13 | Arizona
iStockNumber of spiders submitted to the JME study: 33
Percent brown recluses: 24.2
12 | Iowa
ShutterstockNumber of spiders submitted to the JME study: 7
Percent brown recluses: 28.6
11 | Nevada
iStockNumber of spiders submitted to the JME study: 31
Percent brown recluses: 29
10 | Illinois
iStockNumber of spiders submitted to the JME study: 91
Percent brown recluses: 29.7
9 | Alabama
Von BJ Ray / ShutterstockNumber of spiders submitted to the JME study: 25
Percent brown recluses: 32
8 | Indiana
ShutterstockNumber of spiders submitted to the JME study: 27
Percent brown recluses: 37
7 | Tennessee
ShutterstockNumber of spiders submitted to the JME study: 29
Percent brown recluses: 55.2
6 | Texas
iStockNumber of spiders submitted to the JME study: 142
Percent brown recluses: 59.9
4 | Arkansas
ShutterstockNumber of spiders submitted to the JME study: 15
Percent brown recluses: 66.7
3 | Oklahoma
Von Sean Pavone / ShutterstockNumber of spiders submitted to the JME study: 43
Percent brown recluses: 74.4
2 | Kansas
iStockNumber of spiders submitted to the JME study: 56
Percent brown recluses: 76.8
1 | Missouri
ShutterstockNumber 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.