A Guide To Common Bugs And Insects Found In Los Angeles

As a major metropolitan area in southern California, Los Angeles is home to a variety of insect species that have adapted to urban living. If you’ve noticed more creepy-crawlies around your LA home, you’re not alone.

In short, some of the most common bugs in LA include ants, cockroaches, spiders, mosquitoes, flies, termites, bed bugs, stink bugs, and more. The diversity of bugs reflects the area’s climate and proximity to both mountains and beaches.

This comprehensive guide explores the most prevalent insect pests and bugs that inhabit the Los Angeles area. You’ll learn how to identify them, where they come from, the threats they pose, and most importantly, how to prevent and control them.

Major Household Bugs and Pests in Los Angeles

Los Angeles is home to a wide variety of bugs and insects that can often find their way into our homes. Understanding the common pests in the area can help homeowners identify and effectively deal with infestations.

Here are some of the major household bugs and pests that you may encounter in Los Angeles:


Ants are one of the most common household pests in Los Angeles. They can invade your home in search of food and water, and once they establish a colony, getting rid of them can be quite challenging. The most common types of ants found in the area include Argentine ants, odorous house ants, and carpenter ants.

These ants can contaminate food, damage structures, and even cause electrical problems by chewing through wires.


Cockroaches are another common pest in Los Angeles, and they are known for their ability to survive in various environments. The most common types of cockroaches found in the area include German cockroaches, American cockroaches, and Oriental cockroaches.

These pests can spread diseases, trigger allergies, and contaminate food. They are often found in kitchens, bathrooms, and other areas with a lot of moisture.


Los Angeles is home to a variety of spiders, including black widows and brown recluses. While most spiders are harmless and even beneficial by feeding on other pests, these two species can pose a threat to humans.

Black widows have a venomous bite that can cause severe pain and other symptoms, while brown recluses can cause necrotic skin lesions. It’s important to take precautions when dealing with spiders and seek professional help if an infestation is suspected.


Termites are a significant concern in Los Angeles, as they can cause extensive damage to homes and other structures. The most common types of termites found in the area are subterranean termites and drywood termites.

Subterranean termites live underground and build mud tubes to access above-ground food sources, while drywood termites infest dry wood and do not require contact with soil. Regular termite inspections and treatments are essential to prevent costly damage.

Fleas and Ticks

Fleas and ticks are not only a nuisance but also pose health risks to both humans and pets. Fleas can cause itchy bites and transmit diseases, while ticks can transmit Lyme disease and other tick-borne illnesses. These pests are often brought into homes by pets or wildlife.

Regular grooming and flea/tick prevention for pets, along with keeping your yard clean and free of debris, can help prevent infestations.

When dealing with any of these pests, it’s important to take prompt action to prevent infestations from spreading. If you’re unsure about the type of pest you’re dealing with or if the infestation is severe, it’s best to consult a professional pest control service to ensure effective and safe removal.

Seasonal and Occasional Bug Intruders

Los Angeles is not only home to beautiful beaches, palm trees, and Hollywood, but it’s also a paradise for bugs and insects. With its warm and mild climate, the city attracts a wide variety of bugs throughout the year.

While some bugs are a constant presence, others make occasional appearances during specific seasons. In this guide, we will explore some of the most common bugs and insects found in Los Angeles and provide insights on how to deal with them.


Flies are a common nuisance in Los Angeles, especially during the warmer months. The most prevalent type of fly found in the city is the common housefly. These pesky insects are attracted to food and can quickly become a problem, particularly if you leave your doors or windows open.

To prevent flies from entering your home, make sure to keep your doors and windows closed or install screens. Additionally, maintaining proper sanitation and disposing of trash regularly can help reduce fly populations.


Mosquitoes are not only annoying but can also be carriers of diseases such as West Nile virus and Zika virus. Los Angeles provides an ideal breeding ground for mosquitoes due to its warm climate and proximity to bodies of water.

To protect yourself from mosquito bites, use insect repellent containing DEET, wear long sleeves and pants when outdoors, and eliminate any standing water around your property, as it serves as a breeding ground for mosquitoes.

Wasps and Bees

Wasps and bees are common visitors to Los Angeles, especially during the spring and summer months. While most species of bees are beneficial pollinators, wasps can be more aggressive and may sting if they feel threatened.

To avoid attracting these buzzing insects, keep your outdoor dining areas clean and cover sweet beverages and food. If you encounter a wasp or bee nest on your property, it’s best to call a professional pest control service to remove it safely.

Stink Bugs

Stink bugs are occasional intruders that can be found in Los Angeles. These shield-shaped insects emit a distinct odor when threatened or crushed, hence their name. Stink bugs are not harmful to humans but can be a nuisance if they enter your home.

To prevent stink bugs from getting inside, seal any cracks or gaps in your windows and doors. If you do find stink bugs in your home, carefully capture and release them outside, or use a vacuum cleaner to remove them.

Pantry Pests

Los Angeles homes are not exempt from pantry pests, such as beetles, weevils, and moths. These pests are often brought into homes through infested food products. To prevent pantry pests, make sure to check food packages for signs of infestation before purchasing, and store dry goods in airtight containers.

If you discover an infestation, it’s essential to remove and discard the affected items to prevent further spread.

Remember, while bugs and insects are a part of life in Los Angeles, there are steps you can take to minimize their presence in and around your home. If you have a severe bug infestation that you cannot handle on your own, it’s always best to seek professional pest control services for proper identification and treatment.

Common Lawn and Garden Bugs


Aphids are small, soft-bodied insects that can be found in gardens and on plants throughout Los Angeles. They are typically green or brown in color and feed on the sap of plants. Aphids reproduce quickly, so it’s important to keep an eye out for them and take action if necessary.

They can be controlled by using insecticidal soap or by attracting natural predators such as ladybugs to your garden. For more information on aphids, you can visit the Gardening Know How website.


Caterpillars are the larvae of butterflies and moths and can often be found munching on leaves in your garden. While some caterpillars are harmless, others can cause significant damage to plants. If you notice caterpillars in your garden, it’s important to identify the species to determine whether or not they are harmful.

If they are causing damage, you can manually remove them or use an organic pesticide to control their population. To learn more about caterpillars and how to deal with them, check out the Old Farmer’s Almanac website.


Beetles are a common type of insect that can be found in gardens and lawns throughout Los Angeles. They come in various shapes, sizes, and colors. Some beetles, like ladybugs and ground beetles, are beneficial as they prey on other garden pests.

However, there are also beetles that can cause damage to plants, such as Japanese beetles and Colorado potato beetles. If you have a beetle problem in your garden, it’s important to identify the species and take appropriate measures to control their population.

The Planet Natural website offers helpful information on beetle control.


Crickets are small, jumping insects that are commonly found in lawns and gardens in Los Angeles. While they may not cause significant damage to plants, their chirping can be quite loud and bothersome, especially during the evening hours.

If you’re dealing with a cricket problem, there are a few steps you can take to control their population. One option is to reduce their habitat by keeping your lawn and garden well-maintained. Another option is to use sticky traps or insecticides specifically designed for crickets.

The Spruce website provides useful tips on how to get rid of crickets.


Grasshoppers are common insects that can be found in gardens, fields, and grassy areas throughout Los Angeles. They have powerful hind legs that allow them to jump long distances. While grasshoppers primarily feed on grasses and weeds, they can also cause damage to garden plants, especially during outbreaks.

If you’re dealing with a grasshopper problem, you can try using barriers, such as netting or row covers, to protect your plants. Additionally, there are organic insecticides available that can help control grasshopper populations.

The Gardener’s Supply Company website offers helpful information on grasshopper control.

Threats Posed by Bugs and How to Control Them

Disease vectors

Bugs and insects can pose a significant threat as disease vectors in Los Angeles. Mosquitoes, for example, are known carriers of diseases such as West Nile virus and Zika virus. Ticks can transmit Lyme disease, while flies can spread bacteria like E. coli and Salmonella.

It is important to take preventive measures to control these pests and reduce the risk of disease transmission.

Did you know? According to the Los Angeles County Department of Public Health, there were X reported cases of West Nile virus in 2020.

Stings and bites

Some bugs and insects in Los Angeles can deliver painful stings or bites. Bees, wasps, and hornets are common culprits, and their stings can cause allergic reactions in some individuals. Additionally, spiders like the Black Widow and Brown Recluse can deliver venomous bites that require medical attention.

To minimize the risk of stings and bites, it is essential to identify and eliminate potential nesting areas around your home.

Fun fact: Did you know that honeybees are crucial for pollination and the production of honey? Without them, our food system would be greatly impacted.

Pest-proofing your home

Preventing bugs and insects from entering your home is the first line of defense against infestations. Seal any cracks or openings in windows, doors, and walls to keep them out. Install screens on windows and doors to prevent entry, and keep your home clean and free of food debris that may attract pests.

Regularly inspect and maintain your home’s foundation and landscaping to minimize potential entry points.

Pro tip: Consider using weatherstripping and door sweeps to effectively seal off gaps and cracks around doors and windows.

Natural and chemical treatment

When it comes to controlling bugs and insects, there are both natural and chemical treatment options available. Natural remedies include using essential oils, such as peppermint or lavender, to repel pests.

You can also try planting insect-repellent herbs like basil, rosemary, or lemongrass in your garden. If natural methods are not effective, chemical treatments can be used. It is important to follow instructions carefully and consider seeking professional assistance to ensure the safe and effective use of pesticides.

Important note: When using chemical treatments, always prioritize the safety of your family, pets, and the environment. Follow all instructions and consider consulting with a pest control professional for guidance.


Los Angeles’s location and climate make it prone to invasions from many types of insects. Being able to identify them and take control measures allows you to protect your home from these uninvited bug guests.

Similar Posts