Brown Recluse Spider (Loxosceles reclusa)

Comparison illustration of the size of a Brown Recluse Spider to other species of spiders

Brown recluse spiders are a venomous spider located in North America. Brown recluse spiders only live by themselves as their name suggest, they are shy. Related to the Black Widow, if bitten by a brown recluse spider you’d need to be hospitalized. Only growing under an inch in diameter, this light brown spider can be seen with markings on their dorsal side. Brown recluse spiders only have 6 eyes compared to other spiders who have 8. They often look for dead insects because of their less eyes they cannot respond quick enough to hunt live food.

The Brown Recluse Spider has an overall legspan length between .83”-1.46” (21-37 mm). Brown Recluse Spiders have a typical body length of .28”-.47” (7-12 mm), body width of .08”-.16” (2-4 mm), and body height of .09”-.16” (2.2-4 mm). The common lifespan of the Brown Recluse Spider is between 2-4 years.

Scaled collection of drawings of Brown Recluse Spider in various poses

How many legs do arachnids have?

Arachnids have 8 legs, 2 main body segments, no wings or antennae, and are not able to chew. In some species arachnids can grow extra appendages that can look like extra legs. They often get confused with insects, but insects only have 6 legs.

What do arachnids eat?

Most species of arachnids can only eat food in a liquid form and not in solids. They do so by squirting digestive chemicals into their prey and then sucking out the body juices. Arachnids typically eat insects and other invertebrates. Mites are the only arachnids who consume a wider variety of food like fungus, plants, dead animals, bacteria, and other invertebrates.

How are arachnids different from insects?

Arachnids have 8 legs while insects have 6. Arachnid bodies are divided into 2 parts, the cephalothorax and abdomen and insect bodies are divided into 3, the head, thorax, and abdomen. Arachnids do not have an antennae nor wings, while all insects have antennae and some also have wings. Insects belong to the Insect class and arachnids to the Arachnida class.

How many legs do arachnids have?

What do arachnids eat?

How are arachnids different from insects?

What is the largest group of arthropods?

The largest group of arthropods are insects, and they can be distinguished from other arthropods through specific characteristics. These characteristics include them having 3 body regions, 3 pairs of legs, as well as a pair of antennae. Most insects also have the ability to fly, which other arthropods lack.

How do arthropods grow?

The arthropods grow through the process of forming new segments near their tail. The growth of an arthropod is very similar to the growth of annelids. Arthropods like mollusks have a tough exoskeleton, but this exoskeleton does not grow along with the rest of the animal and they have to shed their exoskeleton periodically.

Why are arthropods important?

Arthropods are considered because they carry out a different number of roles and tasks. Arthropods can help with pest control or weed control, they also carry an important ecological role due to their large number of species and diversity. Arthropods also serve as food for other species within the food chain.

What is the largest group of arthropods?

How do arthropods grow?

Why are arthropods important?

How do invertebrates protect their soft bodies?

Invertebrates can effectively protect their soft bodies through an outer hard casing that is referred to as the exoskeleton. Invertebrates like spiders, crustaceans, and insects have their exoskeletons made through sections of jointed legs. Others like mollusks like snails and clams have a hard shell in which they can hide when danger is present.

What is the difference between an invertebrate and a vertebrate?

The difference between an invertebrate and a vertebrate is that invertebrates have no backbones while vertebrates have a developed internal skeleton with cartilage and bones as well as a developed brain that is protected by a skull. Vertebrates also cannot make their food, while invertebrates make their food.

Why are invertebrates important?

Invertebrates are important because like bees they help with pollination, as well as help clear and clean up the environment. Invertebrates are also important because they are soil aerators and creators as they help grow food crops. They also provide eco-system balance and serve as food for other species within the food chain.

How do invertebrates protect their soft bodies?

What is the difference between an invertebrate and a vertebrate?

Why are invertebrates important?

How do grazing animals help grasslands?

Grazing animals help grasslands by maintaining the ecosystem as well as stimulating plants for new growth. The constant grazing of these animals helps trigger biological activity while promoting nutrient exchanges. Grazing animals also help compact soil with their hooves as well as open new areas for seeds to spread.

What are grazing animals called?

Grazing animals are called ruminants as they eat by looking for forage, selecting the grass, and then grabbing and eating the forage with their mouth. Ruminants stand out from other animals as the way that they grasp and ingest food is different. Grazing animals also move differently in new pastures than other animals.

How do animals adapt to the grasslands?

Animals adapt to the grasslands through multiple factors as they have to withstand the challenges of the grasslands. Animals adapt to the grasslands by being fast and agile as well as carrying out nesting behavior adequate for their environment. Grassland animals typically embrace camouflage to blend, have a structured social system, and burrowing behavior.

How do grazing animals help grasslands?

What are grazing animals called?

How do animals adapt to the grasslands?

Details

Under Development

Height:

.09”-.16” | 2.2-4 mm

Width:

.08”-.16” | 2-4 mm

Depth:

Length:

.83”-1.46” | 21-37 mm

Weight:

Area:

Body Length: .28”-.47” | 7-12 mm

Scientific Name:

Loxosceles reclusa

Lifespan:

2-4 years

Drawings include: 
Brown Recluse Spider top view, side

Links

Wikipedia - Brown Recluse Spider

Wikipedia - Arachnid

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