Desert Recluse Vs Brown Recluse

Desert Recluse Vs Brown Recluse. Despite the fact that idiopathic wounds are usually diagnosed solely on the basis of dermatologic symptoms, spiders, particularly brown recluses (Loxosceles reclusa) (figure 1), are frequently accused as causal agents.

The wound is seldom seen being inflicted by a spider, and it is difficult to establish or refute spider participation in the occurrence. Several diagnoses made on patients from the western United States are wrong, according to the biologic dispersion of brown recluse and related recluse species.

Recluse Spiders Identification

Since their cephalothorax is shaped like a violin, recluse spiders are commonly referred to as “fiddleback” or “violin” spiders.

The violin marking, on the other hand, may be difficult to observe since the desert recluse is nearly invariably uniform brown. Misidentification of recluse spiders has occurred with striped wolf spiders and other spiders sporting dark patterns.

The diameter of a full-grown recluse spider, including its leg span, may be up to 1″.” The fact that recluse spiders have six rather than eight pairs of eyes is one of the features that sets them apart from other spiders.

Recluse webs are irregular, sticky, and mostly flat. Humans seldom notice them because they are small and easy to miss.

Ask a professional to help you identify a recluse spider. We’d be happy to help you identify them by looking at a specimen you caught or photos you took.

Recluse Spider Bites

Bites from recluse beetles create a crimson, swollen area that may turn into a blister. Recluse bites may progress to open, weeping sores if they are untreated. Immediate medical attention is required if you believe you’ve been bitten by a recluse spider, since their bites may cause varying symptoms.

While recluse spider bites may be uncomfortable, they are seldom fatal. Recluse spider bites are frequently misdiagnosed in other infections and skin conditions.

You may be reacting to something else unless you see distinctive puncture marks on your skin or the spider bites you. Seek medical attention if you’re unsure.

While cleaning out seldom-used storage spaces or attics, as well as handling yard waste and wood debris, always wear cloves to prevent recluse spider bites.

Before placing garments on, shake them gently to remove dirt or dust. Before wearing garments or shoes you’ve stored, always check them.


Difference Between a Brown Recluse and a Desert Recluse

The Brown Recluse Spider has garnered a lot of unwarranted hysteria as a result of the media attention and the frequent mis-identification of spider bites.

We often get asked questions about this feared spider and how to recognize it, as well as how to distinguish it from its close relative, the Desert Brown Spider, at Western Exterminator.

Brown Recluse Spiders are also rarer than the Desert Brown Spider in Southern Nevada, Las Vegas, and Henderson.

Brown recluse spiders are not native to California, contrary to popular belief. In California, there are various recluse spiders. Desert recluse spiders (Loxosceles deserta) are most likely the species that was captured from the California desert.

The desert recluse, found in the Sonoran and Mojave deserts, is one of the most common Californian recluse spiders. Arizona, Nevada, Utah, and New Mexico are home to the desert recluse. Desert recluses are recognized to have necrotic venom, much like brown recluses.

Desert recluse spiders are frequently misidentified as brown recluse spiders due to their aesthetic similarities. In contrast to most other spider species, desert recluse spiders have just six eyes rather than eight.

These eyes, like the brown recluse’s, are divided into three dyads. The color of desert recluses is usually sandy or light brown, with pale bellies. The body of the brown recluse also has the characteristic fiddle shape of the brown recluse.

The desert recluse (L.) is found in both the desert and the city. The brown recluse (L. Deserta) is also included. The Loxosceles family (meaning “with slanted legs” in Greek) includes Reclusa.

The brown recluse spider has deeper markings on its bodies than the desert recluse, however they both have comparable color changes.

The color pattern of brown and desert recluse spiders is uniform throughout the cephalothorax (fused head and thorax), abdomen, and legs. Abdomens with round edges

The reclusive habits of brown recluse and desert recluse spiders have made them famous. They will do anything to avoid being eaten by predators. They do the majority of their hunting at night and hide during the day because they are nocturnal.

The brown recluse bears a violin-like pattern on the top of its cephalothorax, which serves as its claim to fame. Surprisingly, some desert recluse spiders have violin-like patternings on their backs, but this is not always the case. Their violin mark will be much lighter if they do.

Bites from these spiders

When compared to the Brown Recluse, Desert Brown Spiders are far more common in the Las Vegas region. Both spiders have necrotic bites, thus they are both dangerous. This spider family’s bites may cause severe damage to tissue, resulting in a necrotic lesion, which is a large open wound.

Desert Brown Spider & Brown Recluse Extermination

For many home owners, the hazards of having these spiders in their house warrant professional assistance. Home owners can identify sources of concern and treatment choices by enlisting the help of a professional pest control company.


When they attack their prey or a would-be predator, the brown recluse and the desert recluse both inject a modest quantity of venom called sphingomyelinase D, which is a dermonecrosis-causing enzyme. Necrosis-causing enzymes, in layman’s terms, cause human tissue to breakdown, which allows severe bites to devour your skin.

The likelihood of being bitten by a desert recluses is infinitesimal, and the risk of fatally wounding one is even smaller. Desert recluses have the same sort of venom as brown recluses.

In fact, in Southern California, there hasn’t been a single confirmed death caused by a desert recluse bite. These recluses’ bites also aren’t likely to inject enough venom to penetrate your skin, resulting in a serious bite. Recludee bites cause very little if any discomfort and generally disappear on their own.

Nonetheless, if you believe you’ve been bitten by a desert recluse, seek medical attention immediately. Bites from other arthropods, untreated illnesses, and bacterial infections are frequently misdiagnosed as recluse bites.


Identifying Characteristics of the Brown Recluse Spider

The Brown Recluse Spider is frequently referred to as Fiddle lines on the spider’s body, or a cephalothorax, and many individuals mistake it for the Violin Spider.

The cephalothorax is home to the spiders legs, eyes, and mouth fangs. This Violin design will be brown in color, with a dark brown tone. The Brown Recluse Spider has the following identifying features:

-The spiders legs are smooth, with no spines.
-Spiders legs will be uniformly colored.
-Oval abdomen, with no markings.
-3 sets of eyes.
-The body of a spider will not be longer than 1/2 inch.
-In addition, the spiders’ cephalothorax will feature a dark brown violin shape.
-The color of the spider’s abdomen will be uniform and fine hairs.
-The spider’s color will range from light tan to dark brown in hue.
-Long thin legs.


The webs of brown recluse spiders are best kept undisturbed. They are frequently discovered in unused closets and storerooms, behind furniture, and in baseboard cracks and crevices during the day while they hunt primarily at night.

Foundation cracks, soil cracks, and window wells are all places where they may be found. Firebrats, crickets, cockroaches, and other soft-bodied animals are favorites of the brown recluse spider. The brown recluse spider, who earned his reputation, comes to a halt early in the day.

The brown recluse spider will only bite when it is startled, and it is a non-aggressive spider. The brown recluse spider bite seldom causes discomfort at the moment of occurrence, and it takes between six and eight hours for pain to develop.

After six to twelve hours, a typical bite region might resemble a pimple, pustule, or blister. Bites are painful and lead to an ulcerous lesion known as a necrotic lesion, which becomes black in color within a day and takes a long time to heal.

Why Brown Recluse Spiders Are Dangerous

Brown recluse spider bites are uncommon, but they can be deadly. These spiders are not harmful. However, if you roll over on one or it hides in a piece of clothing, they might bite.

Bite may also be confused with a red spot or a tiny cut, hence they are frequently overlooked. The bite of a brown recluse is not easily identifiable. Brown recluse venom can’t be detected in a suspected spider bite by taking a blood test or growing cultures.

A moderate or severe reaction to the brown recluse’s venom is possible. People with weakened immune systems, the elderly, and children are more likely to experience severe symptoms.1

Immediately apply ice to the affected region, elevate it, and seek medical treatment if you believe you’ve been bitten by a brown recluse.

Identifying Characteristics of the Desert Brown Spider

The Desert Brown Spider, from the same genus as the Brown Recluse Spider, is closely connected. The Desert Brown Spider has a Violin-shaped mark on its cephalothorax, which is similar to the Brown Recluse Spider, and it has a lighter color than the dark brown markings of a Brown Recluse.

Because they come from the same spider family and genus, many of their traits are similar.
Desert Brown Spiders, which reach up to ½ inch in length and are yellowish-brown to tan in color, are similar to Brown Recluse spiders.

The desert recluse, Loxosceles deserta, is a brown spider found in Mexico and the United States.

L. is commonly mistaken with the desert recluse. L. unicolor (from South America) Two spiders that do not live in the area (the brown recluse of the southern and midwestern states)

The eastern half of southern California, the southern tip of Nevada, the western part of Arizona, northern, central, eastern and southwestern New Mexico, and the southwest corner of Utah[3] are all home to this spider.

It lives in the wild and avoids human habitation, choosing instead to reside amid indigenous vegetation or even green grasses[2]. It is especially abundant amid packrat dens.


Are Desert Recluse Spider Poisonous and Do they Bite

Because of the necrotic nature of the desert recluse bite, it may be harmful, injuring the skin as well as neighboring tissues severely and causing lesions that can take a long time to heal.

Nausea, fever, stomach cramps, joint discomfort, headpains, and fever have also been described by some individuals. The initial step in treating a spider bite would be to treat the wound as soon as feasible and control any symptoms that might increase (if any).

Are There Desert Recluses In Your Home?

There are various locations in your home where you may check for Desert Recluse spider colonies.

They may make their nests in cinder blocks, mounds of clothing, or holes in the wall, but they mostly prefer cacti or rats’ nests. Their oddly-shaped webs and maybe even egg sacs in your home will indicate an infestation if there is one.

A Desert Recluse bite has been reported to cause harmful symptoms, which is definitely something you don’t want near your children or pets.

Dealing With Desert Recluses

Don’t wait to contact ScorpionTech if you’re seeking a fast solution for all of your Arizona spiders and their concerns.

They’re available 24 hours a day and night to assist you restore your home and ensure that no one you love is harmed by hazardous insects. ScorpionTech can take care of it if you’ve seen a Desert Recluse spider infestation or you’re more interested in spider prevention.

Medical Misdiagnoses

In North America, the phenomenon of medical misdiagnosis is widespread, with doctors diagnosing skin conditions to recluse bites when no brown recluse spiders have ever been discovered north of the 48 contiguous States. States are being formed as a result of this.

The necrotic (rotting flesh) wounds that recluse spiders cause are frequently misdiagnosed as “brown recluse bites,” which is one reason for the great awareness of these spiders throughout North America.

The biological data indicating the spider’s distribution indicate that most of these diagnoses are incorrect, despite the fact that recluses may cause these types of wounds.

Most common spider bites in California, according to a world-renowned toxicology specialist who worked at the University of Southern California Medical Center, were really caused by other arthropods, and 60% of “brown recluse spider bite” diagnoses came from regions where no Loxosceles spiders were found.

Several medical conditions are misdiagnosed as recluse bites, which can have devastating and sometimes fatal consequences.

In addition, antibiotics are administered to individuals who have been diagnosed with brown recluse spider bites in California. Antibiotics have no effect on spider venom and are used to fight bacteria. Seeking medical attention if you believe it is needed, regardless of the causative agent, is a wise idea.

The suggested therapy for most brown recluse bites is RICE (Rest, Ice, Compression, Elevation), although other medical professionals recommend cold instead of ice and a neutral position rather than elevated.