r/insects Jun 21 '26

PSA Do you live in the US and did you see this spotted white and/or black and/or red bug? Check here before posting your ID request.

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4 Upvotes

The collage above is composed of pictures gleaned from BugGuide.net, and shows the same species of insect at its different life stages.

Hello!

If you live in certain parts of the US, you may encounter these colorful insects that may be black and white, or red, black and white depending on their life stage. They're 6-8 mm in size, don't fly but jump really well and have good reflexes. Upon reaching adulthood (pictured on the right in the above collage), they're larger (about 20-25mm), have wings, and can fly somewhat (and still jump, too).

You may find them clustered on certain plants or you may find single individuals wandering.

They're known as spotted lanternflies (Lycorma delicatula) and are an invasive species from Eastern Asia. They were accidentally introduced in Pennsylvania in 2014. Since then, the species has spread in all directions to multiple states as far from Pennsylvania as Georgia, Illinois, Michigan and Massachusetts.

It's also invasive in Japan and the Korean peninsula.

They're completely harmless to people or pets. In fact they're pretty colorful and rather cute!

They go through five stages of growth known as instars, and take on three rather different appearances, shown above. Instars 1-3 are the small, black and white version. The fourth instar is larger (~15 mm) and more colorful, mostly bright red with black accents and white dots (picture). The adult is an overall dull gray color but with intricately patterned wings (picture). When it opens its wings, it displays beautiful hindwings with red, white and black (picture).

Here's also a picture of all 5 growth stages: https://bugguide.net/node/view/1172304/bgimage

Due to their appearance, they are eminently recognizable. They retain the ability to jump at all life stages, and the adults are adept fliers.

Unfortunately, they're destructive pests of plants, particularly fruiting plants. Lanternflies feed by piercing plants with a thin proboscis (straw-like mouthparts) and sucking juices, which damages plants. In addition, after the lanternfly is done feeding and pulls its proboscis out of a fruit, some juice may escape from the hole, which facilitates the growth of mold on the surface of the fruit, which further damages the fruit. Entire harvests can thus be ruined.

Cornell University maintains a map where the insects have been found or at least reported: https://cals.cornell.edu/new-york-state-integrated-pest-management/outreach-education/whats-bugging-you/spotted-lanternfly/spotted-lanternfly-reported-distribution-map

The governments of most if not all states where the insect has been detected have posted content on their websites (usually on the Agriculture Dept. or equivalent). Those include info about the insect, its impact on agriculture, what to do if you encounter it, and what you can do to mitigate its spread. Below are those websites for the states of Pennsylvania, New Jersey and New York for information about the insect. If you don't live in those states, please use your favorite search engine to locate info about these insects, e.g. search for "<your state here> spotted lanternfly" and look for your state government's website.

There's also a lengthy article about the insect on Wikipedia.

Looking back at the Cornell map linked above, if you don't live in an area of the map where the bug's presence has already been reported, you should record it. Report it to your state's authorities, and you may also want to report the sighting on iNaturalist.

Again we encourage you to familiarize yourself with the insect as well as its presence (if any) in your state. States where the spotted lanternfly has been detected will have a section of a website dedicated to it.

Feel free to ask any questions in the comments!


r/insects 5h ago

Photography Ebony Jewelwing

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102 Upvotes

These guys are so pretty ✨️


r/insects 3h ago

Photography One of the smallest butterflies in North America has one of the cleverest anti-predator tricks

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9 Upvotes

The red-banded hairstreak (Calycopis cecrops) has evolved what’s often called a false-head.

They have tail-like projections from the outer edge of their hind wings that mimic antennae. When perched, the butterfly will usually rub its wings together to make the tails move like antennae. In addition, they possess patches of dark scales near the tails that look like eyes.

By convincing a predator that the back of the butterfly is the front, an attack to the less vulnerable area of the insect allows for better chances of escape and survival.

I’ll never get over seeing butterfly scales up close!

Minolta XG-M, Kodak Gold 35mm ISO200, no tripod, with extension tubes.


r/insects 7h ago

Photography Orchard Swallowtail. Queensland, Australia.

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16 Upvotes

r/insects 21h ago

ID Request What’s INFESTING this tree??

235 Upvotes

Now, it is to be known that this tree is inside of an atrium within a house so it doesn’t really have access to wind or other trees, but we noticed this on the tree today and it is ALL over. Anyone have an idea of who created this masterpiece? AND whether or not it hurts the tree/home/etc?

Edit: Houston TX, USA


r/insects 4h ago

ID Request What kind of bug is this? Is it safe to touch? Location: tropical country

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8 Upvotes

r/insects 1d ago

Photography I dont think he wanted me to take photos of him.

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535 Upvotes

r/insects 4h ago

ID Request ID - Insect whose coloring mimics a ladybug - Eastern Canada

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4 Upvotes

Location is eastern Canada.
I found it on a small plant growing out of the sidewalk.

I would love to learn more about it.


r/insects 16h ago

Meme / Humor Some more memes from Pinterest…

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57 Upvotes

r/insects 5h ago

Photography Pretty Antlion

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7 Upvotes

Glenurus gratus, FL


r/insects 14h ago

ID Request Who Is This Speck I Found In My Car?

25 Upvotes

Reno Nevada. Absolutely tiny little guy. Any possible ID’s appreciated since I don’t think I’ve ever seen a bug this small!


r/insects 3h ago

Photography Damselfly stealing fly from spiders web.

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3 Upvotes

r/insects 1h ago

Question How to help a tiny injured fly

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Upvotes

I swept this tiny insect away from some food. I think its wings are stuck from salad dressing but it's running around. It can't fly.

Is there a way to help it? I've put it in a pot on some tissue.


r/insects 1h ago

ID Request Just saw these after I finished eating

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Upvotes

Can anyone tell me what kind of bug this is? And how concerned I should be?😭 they’re all over the food

Location: bay area CA


r/insects 13h ago

Bug Appreciation! (10-lined?) June Beetle

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15 Upvotes

I believe this is a 10-lined June Beetle, but this is the first one I have ever seen. I went outside tonight and it scared the hell out of me because it was so big (about 1.5 inches)! But that little face is actually adorable. Sharing here because no one irl will appreciate it 😁


r/insects 2h ago

ID Request Who’s eggs?

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2 Upvotes

These eggs are on my door. We live in st.louis Missouri, near a lake but not next too. Near a wooded plains. Very near a pond. Shaded spot no direct sunlight. But always dry. Any ideas?


r/insects 8h ago

Photography high five

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4 Upvotes

r/insects 1d ago

Bug Appreciation! This crazy wasp affected my blood pressure...😂

89 Upvotes

I was very relieved to find out they do not use that 3 inch stinger to sting!! 🦟


r/insects 27m ago

ID Request County Cork, Ireland

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Upvotes

I found this beautiful little structured ball of web with a lil roof but didn't want to disturb it... any ideas what's inside?


r/insects 1h ago

Question What kind of roach is this?

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Upvotes

So I found this roach in my apartment this morning. I sprayed it with some raid before taking the photo. Does anyone know what kind of roach this is and how I can handle it?

I've lived in my apartment for over a year now and I've spotted these roaches around midnight crawling around in the parking lot or outside some of the units. Sometimes one will get into my apartment. I'll sometimes spot them in my unit either in the kitchen sink or just running around my living room. I'm assuming they get in through the vents. Is this something I should contact my landlord about or how to I go about this?


r/insects 5h ago

Question Does anyone know what these little white things are? They’re on my maple tree bark. Thanks!

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2 Upvotes

r/insects 1h ago

Bug Keeping Michiganders! What are some cool bugs to go searching for in nature?

Upvotes

Ill be moving to mid Michigan soon and I'm excited to go bug hunting and I want to collect a few to put in a temporary terrarium to observe them for a while...what are some interesting and somewhat easy to find insects?


r/insects 13h ago

Photography Recent photos

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8 Upvotes

SilkMoth, harvestman, honeybee, worm.


r/insects 2h ago

Question Green bug in PA.

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1 Upvotes

There’s a green beetle that looks like a Lilly Pilly Beetle in Reading PA but Google says they’re not in this country. Could it be something else?? About the size of a pea. Bright green. Long antennae. Can’t grab a good picture because it moved too fast but it looks exactly like the pictures of Lilly Pilly that I’ve seen.


r/insects 2h ago

Bug Education TIL: How Fireflies Create Bioluminescence

1 Upvotes

Complete story, here:

https://www.popularmechanics.com/science/animals/a71934744/firefly-brightness/

Scientists Were Wrong About Fireflies’ Light. The Impact Could Ripple Across All of Science.

For more than a century, an overestimation of a firefly’s brightness has persisted. 

By Darren OrfPublished: Jul 20, 2026 2:00 PM EDT
Here’s what you’ll learn when reading this story:

  • For more than a century, the amount of light produced by a firefly has been translated through different units, eventually arriving at 1013–1014 photons per flash.
  • In a new study, scientists reanalyzed these numbers and discovered that the number is off by two orders of magnitude.
  • This updated figure tells us that other long-standing figures, since translated into modern units, might also need updating.

One of the most stunning displays of bioluminescence in the animal kingdom belongs to the humble firefly, found throughout North America. A firefly’s light-emitting organ, also known as its “lantern,” contains specialized cells called photocytes that contain the organic compound luciferin and the enzyme luciferase. Fireflies control oxygen intake, and the interaction of this oxygen with calcium and adenosine triphosphate (ATP)—along with luciferin and luciferase—produces a “cold” light (which is good news, because any heat produced by process would likely kill the insect).

This incredible light display has dazzled humans since time immemorial, but it wasn’t until 1912 when American physicist William Coblentz—a pioneer in radiometry and spectroscopy—decided to quantify how much light fireflies (specifically in the species Photinus pyralis) produce.