If you live in Florida, or visit here, you know that the Sunshine State is home to many bugs. Thousands of species of insects, spiders, mites and other creepy-crawly arthropods roam the state — some beneficial to people, some potentially harmful to people, some neither, some both.
You may have a few questions about Florida’s bugs. That’s why we’re here.
UF/IFAS entomology experts want to make sure you get the facts about Florida’s bugs, so we’re providing this FAQ backed by science-based answers.
If you have questions that aren’t addressed in the current version of the FAQ, let us know by writing to sfyl@ifas.ufl.edu. Many of the questions submitted will be featured on the UF/IFAS Facebook and Twitter pages during UF’s annual Bug Week celebration every May. And the online FAQ will continue to grow as new material arrives.
Bug Word of the Day: Central-Place Forager (4/6/2018) - Central-place foragers are animals that return to the same nest in between foraging trips, collecting their food, or food for their offspring, in an area around that nest. Animals that are not central-place foragers instead roam continuously, foraging and reproducing over a large area as they move from place to place. All bees are central-place… 1
Bug of the Day: Sweat Bee (4/6/2018) - If you are outside on a hot day working in the gardening, or taking a walk through a park, you might find a shiny bee resting on your sweaty skin. It is probably a sweat bee! Sweat bees are a large, diverse group of bees in the family Halictidae that are important pollinators of both… 1
Bug Word of the Day: Proboscis (4/5/2018) - Elephants, mosquitoes, and butterflies share something in common – they have a proboscis! A proboscis is simply a long appendage coming out of an animal’s head, and is used to describe the nose or snout of a vertebrate, like an elephant, or the mouth of an insect, like a butterfly. In insects, the proboscis is… 1
Bug of the Day: Bella Moth (4/5/2018) - Not all moths are night creatures. In fact, one of the most colorful moths in Florida, the bella moth Utetheisa ornatrix, is active during the day when we can admire its beauty. The wings of the bella moth are a combination of orange, pink, white, and black, though the shades of the colors can vary.… 1
Bug of the Day: Green Orchid Bee (4/4/2018) - The green orchid bee, Euglossa dilemma Friese, is a large, beautiful, metallic green bee named for its unique association with orchids and its distinctive color. While it can be found in the southern half of Florida, it is not native to this state or to anywhere in the United States. Its native range includes much… 1
Bug Word of the Day: Scopa (4/4/2018) - A scopa is a part of a bee’s body that is designed to hold and carry pollen. Bees must transport pollen from the flower, where it is collected, to the bee’s nest, where it is deposited to feed the bee’s offspring. In order to transport large loads of pollen efficiently, and over long distances, bees… 1
Bug of the Day: Hoverflies (4/3/2018) - Hoverflies, also known as flower flies or syrphid flies, are perhaps the most unrecognized and underappreciated pollinators. They are actually thought by some scientists to be the second most important group of pollinators after bees! This is a large and relatively diverse group named for their behavior of hovering while in flight. They can also… 1
Bug Word of the Day: Flower Constancy (4/3/2018) - Pollinators sometimes play favorites when choosing plants to forage on, a behavior known as flower constancy. This behavior can be seen across many different types of pollinators, but is perhaps best known in honey bees and bumble bees. As pollinators spend their days foraging for pollen and nectar, they have to make decisions about which… 1
Bug of the Day: The Common Eastern Bumble Bee (4/2/2018) - The common eastern bumble bee, Bombus impatiens, is one of the most frequently found bumble bees across the eastern half of North America. Their native range extends north-south from Ontario to Florida, and east-west from Maine to the Dakotas. In Florida, it is one of five species of social bumble bees native to the state.… 1
Bug Word of the Day: Mutualism (4/2/2018) - Pollination is one of the best examples of mutualism, a relationship between two different species in which both species benefit. Mutualisms are different from the many other relationships between organisms in which one or both species is harmed, such as competition, predation, or parasitism. Plants and pollinating insects like bees and butterflies share a mutually… 1
Jeepers creepers what are all these creatures? See our new UF/IFAS Featured Creatures! (5/25/2017) - It is that time of year when it seems that everywhere you look is an insect you have never seen before. To keep you in the know we have pulled together some of the newest Creatures from the University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS) Featured Creatures Website. These articles were developed… 1
What is this bug? It is time to explore tiny but new UF/IFAS Featured Creatures! (5/23/2017) - Are you seeing fantastic creatures that are the stuff of nightmares (or an entomologists day dreams)? We all have had these moments and can often be surprised by how small some of these so called evil creatures are. We have compiled for you some of our newest articles on tiny insects (that may or may… 1
Zika and Florida Beekeepers (9/9/2016) - A letter from the Florida Chief of Apiary Inspection, David Westervelt: The Southeastern United States is in a triple threat situation for mosquito proliferation and control. Listed below are conditions making it favorable for the breeding and spread of viruses in mosquitoes: It is the season. The weather is perfect to be a mosquito and… 1
Giant wasp making you nervous? (8/26/2016) - This is a guest post by Lauren Webb, a research assistant in the Dale Lab in the UF/IFAS Entomology & Nematology Department. Have you ever seen a wasp nearly the length of a large paperclip? Perhaps on the ground or flying around? Maybe it was a little standoffish as you stood too close to its… 1
Why do I always find these silver bugs crawling inside of cardboard boxes? (5/27/2016) - The silver critters that you find in boxes are called silverfish (Figure 1). They are a primitive type of insect that lack wings and are ametabolous (meaning they do not go through metamorphosis). Silverfish prefer places that have little airflow, which is why cardboard boxes are adequate hiding places. You might also have found some… 1
What are these specks of dirt climbing up my walls? (5/26/2016) - If you have ever seen what looks like clumps of dirt ascending your walls, you are actually seeing an insect. The “dirt” is actually a case that surrounds a household casebearer caterpillar (Figure 1), which is the larval stage of a Tineid moth (Figure 2). The caterpillar creates its case out of silk once it… 1
I found some bed bugs in my house. Can I use bleach to kill bed bugs? (5/25/2016) - When you have an infestation of bed bugs (Figure 1), bleach should not be used as a control method. Bleach can be harmful to people if not used carefully, and it will not work effectively to completely eradicate bed bugs from your home. Other common household products, such as boric acid dust or alcohol,… 1
I have things that move in my birdbath. What are they? (5/24/2016) - Those little, squirming things in your birdbath are container-breeding mosquitoes (Figure 1). These mosquitoes are in their larval stage. Adult container-breeding mosquitoes lay eggs wherever water collects, which can be natural structures—like bromeliads—or artificial ones with standing water—like your birdbath. The eggs are either laid in batches (called rafts) that float above the water, or… 1
I found worms with a spike for a tail on my tomatoes. What are they? (5/23/2016) - Between April and November, you might notice spike-tailed green worms (Figure 1) feasting on your tomato plants’ leaves and fruit. These voracious creatures ravaging your garden are caterpillars called tobacco or tomato hornworms. The caterpillars are the larval stage of Sphingidae adults—a family of stout-bodied and narrow-winged moths (Figure 2). Figure 1. A tobacco hornworm,… 1
Do wasps have any benefits at all? (4/11/2016) - Actually, yes! They may not make honey like pollinating bees do, but we still need them. Even though you might tend to think of wasps as pesky stinging insects, they do provide ecological benefits. Similar to bees, some species are helpful with pollination. For instance, the fig wasp, Blastophaga psenes, has a mutual relationship with… 1
I keep my house clean, so why am I still finding ants? (4/8/2016) - It may feel as though ants, no matter what you seem to do, will never leave your house. There are several reasons why ants continue to find their way inside your home. Doing dishes every day and keeping food properly sealed may not be enough to keep ants at bay, because even a single crumb… 1
Fresh spring leaves: A delectable treat (3/31/2016) - Throughout early spring, leaf buds on deciduous trees open up into fresh, green leaves. Our recently bare and bland landscapes are green again. We aren't the only ones who are excited about this, though. Leaf-eating insects are too. Early spring is when many herbivorous insects like caterpillars and beetles eat their hearts (more like their… 1
Welcome back! We STILL want to know what’s bugging you! (2/24/2016) - Welcome to the new online habitat, er, home for the University of Florida’s Bug Week! The UF/IFAS Web Team has designed this terrific new website, where you’ll find information about all the Bug Week 2016 activities, along with plenty of educational material. To kick things off right, we’d like to invite all our users to… 1
What are these tents? (12/16/2015) - You may have noticed branches covered in these strange structures (Figure 1) during the spring, typically in March. These are tents constructed by eastern tent caterpillars, the larval stage of a Lasiocampid moth—a hairy and golden-brown colored moth with two white bands on the forewings. They spin their silk around tree trunks or branches to… 1
Are ladybugs all ladies? (11/18/2015) - The ladybug (Figure 1), or ladybird, is the common name given to beetles in the Coccinellidae family. This is misleading because not all ladybugs are ladies; they can be either female or male. It is difficult to determine the sex of a ladybug, but females tend to be larger than males. People, mostly children, are… 1
What is this mosquito with white feet? (11/1/2015) - We are pleased to announce a new article on Featured Creatures that will answer that question! Take a sneak peek with this excerpt from the article: Psorophora ferox, (Figure 1) known unofficially as the white-footed woods mosquito (King et al. 1942), is a mosquito species native to most of North and South America. It is… 1Real zombies are among us! (10/26/2015) - It seems like science fiction, but insects can have their brains reprogrammed by fungi and even other insects! These zombies are common and may even be in your garden. We are mesmerized by the many examples of tormentors and the tormented. For example the dementor wasp (Ampulex dementor) is not very different from the soul-sucking… 1
Insects: A Delectable Wonder (10/15/2015) - Have you ever crave something crunchy, spicy, and savory? You are probably thinking of potato chips or chicken wings. You will be interested to know that there is another crunchy, spicy, and savory food that is also healthy and high in protein. Do you know what it is? I’ll give you a hint. This appetizing… 1
What are the big blue butterflies we see in butterfly exhibits? (10/10/2015) - We have a new article on Featured Creatures that will answer that question! Take a sneak peek with this excerpt from the article: Morpho peleides Kollar, the blue morpho butterfly, also known as the peleides blue morpho or common blue morpho, is a brightly colored butterfly abundant in tropical environments in Central and South America… 1
How is this leaf walking? (9/19/2015) - This leaf is not really a leaf at all. You are actually seeing an insect: a katydid (Orthoptera: Tettigoniidae) (Figure 1). On closer inspection, what you may have referred to as a grasshopper is, in fact, related to grasshoppers but is not one itself. Similar to grasshoppers, katydids can jump long distances due to their… 1What are these little bugs in my house that look like they roll into a ball? (7/10/2015) - The pillbug, Armadillidium vulgare (Latreille), is an isopod, a type of non-insect arthropod also known as a terrestrial crustacean. It is sometimes called a roly-poly due to its ability to roll into ball when threatened or bothered. This defense behavior makes it look round like a pill, which is why it is sometimes known as… 1
Why is this tree leaking? (6/12/2015) - If you see sap coming out of a tree it could be caused by many different things. Damage to a tree trunk or limb can cause sap to leak out. This is natural wound protection for the tree. The sap comes out and covers up a wound to prevent plant pathogens and insects from getting… 1
Is it true that there are brown recluse spiders in Florida? (5/20/2014) - That depends on your definition of ‘here.’ No breeding populations of any species of recluse spiders (Loxosceles laeta, Loxosceles reclusa, and Loxosceles rufescens have all been found in the state), has been found in any Florida county in a native habitat. A few verified samples (about 20) have turned up in Florida, but all records… 1
I heard that UF was responsible for releasing the lovebug. Is that true? (5/6/2014) - No, it’s not true. Not by a long shot. Not even close. NO! This rumor’s been around for decades and its origins are unknown. But we can tell you a few things to bust this myth: First, it’s clearly contradicted by the historical record: The lovebugs commonly seen flying over highways in the Southeast are… 1
What’s the best mosquito repellent to use? (5/6/2014) - Scientific studies have shown the mosquito-repelling effectiveness of the chemical N,N-Diethyl-meta-toluamide, which is better known by the acronym DEET. Although people have reported good results with other options ranging from cosmetics to home remedies, DEET is a widely available compound with a strong scientific track record that says it works. Figure 1. Bloodfeeding female black… 1
Why is my area so bug-infested? (5/6/2014) - These are some common questions- Why are there so many bugs in Florida? Not species but individual bugs. Why is my area so bug-infested? Why are there sometimes so many bugs of a certain type, like love bug swarms? Florida’s warm, humid climate provides good breeding conditions for many insects and other land-dwelling arthropods. Some… 1
Why are there so many species of bugs in Florida? (5/6/2014) - Florida is home to thousands of insect species, plus thousands more land-dwelling arthropods that aren’t classified as insects – organisms including spiders, mites, centipedes and ticks. Part of the reason we have so many species of bugs here is the state’s climate. All around the world, warm, humid places often give rise to great natural… 1
I think I’m having health problems related to bugs. (5/6/2014) - As much as we’d like to help, we’re not physicians and so it would be irresponsible for us to try to diagnose a medical problem. The best thing for you to do is discuss your symptoms with your primary care provider or a dermatologist. If your skin itches and there’s no obvious cause, this resource… 1
Which bug is the biggest agricultural pest in Florida? (5/6/2014) - Right now it's probably the Asian citrus psyllid, a small flying insect that’s the vector of the presumptive cause of citrus greening disease, the bacterium Candidatus Liberibacter asiaticus. The disease cost Florida citrus growers $4.5 billion in lost revenues between 2006 and 2011, causing the loss of more than 8,200 jobs. Figure 1. Adult Asian… 1
How do I know if I’m allergic to bee or wasp venom? I don’t think I’ve ever been stung. (5/6/2014) - You should talk to your primary care provider. There are tests available that can indicate potential bee and wasp venom allergies. In the meantime, if you’re not certain if you are allergic to bee or wasp venom, the best thing to do is take precautions to avoid coming into contact with these creatures. If… 1
What’s the most dangerous bug in Florida? (5/6/2014) - In the big scheme of things, it's the mosquito. These blood-sucking pests don’t pose a danger by themselves, but their bites can transmit microscopic organisms that cause infectious diseases including Eastern equine encephalitis and dengue. Scientists believe that, over the course of history, mosquitoes have killed more human beings worldwide than any other animal species.… 1
What are those little dark-colored flies that come out of my bathroom sink? (5/6/2014) - Is this what you are seeing? Those are representatives of a fly family called Psychodidae, commonly called drain flies, sink flies or moth flies. These insects are harmless, they don’t bite, sting or transmit diseases. However, they are unsightly. They’re often seen near drainpipes because that's where the females lay eggs, in clumps of built-up… 1
What’s the biggest bug in Florida? (5/6/2014) - For greatest body length, we’re confident that the title holder is Scolopendra alternans, commonly called the Florida Keys giant centipede or Haitian giant centipede. A really big adult can be somewhere in the neighborhood of seven to 10 inches long, based on Internet photos and video footage we’ve seen (and assuming that the material was… 1
What’s the difference between an insect and a bug? (5/6/2014) - Let's start with the easy part- defining what an insect is. An insect is a type of organism in a larger group called arthropods, which are cold-blooded creatures with an exoskeleton and no backbone. An insect ( like the roach below) is an arthropod with some specific characteristics – six legs, a three-segmented body, segmented… 1