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What is a No See Um?

Wetlands can be a prime breeding ground for no see ums.
No see ums may be referred to as midges.
A mosquito is much larger than a no see um, but its bite doesn't compare.
No see ums are a common problem at picnics.
No see ums often live around discarded tires.
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  • Last Modified Date: 19 October 2014
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Many people don't know what a no see um looks like because of its tiny size, but if one bites, it's hard to miss. The insect is a bloodsucker many times smaller than a mosquito, but with a bite inversely more painful. The sting causes a large welt that can irritate the skin for several days, causing severe itching. It is tiny enough to pass through window screens, making it a nuisance to people and pets.

The scientific name for the no see um is Ceratopogonidae, but it has accumulated many common names. These include the sand flea, sand fly, biting midge and punkie or punky. Common to beaches, wetlands, creek and lakebeds, the insect purportedly stays within 350 feet (107 meters) of its breeding ground. Therefore, if people find themselves under attack at a camping site, on a picnic, or at the beach, moving a short distance can provide relief.

The no see um lays its eggs in standing water, where larvae hatch to feed on dead vegetation. Within a few days, the larva becomes a pupa, then an adult, leaving the nesting grounds in search of food. The bug is most active at dawn and dusk, and people who are unlucky enough to pass through a dark swarm of these insects might get them flying into their eyes, ears, nose, or mouth.

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Like the mosquito, it is only the female no see um that requires protein-rich blood meals for egg laying. When one pierces the flesh, it injects a liquid that thins the blood to keep it from clotting, causing irritation and triggering the body’s immune system. Many species are found in Alaska, Florida, the southern US states, and the California coast, though they can be found anywhere conditions are ideal. The best way for people to protect themselves from their bite is to stay clear of breeding grounds and empty standing water from yard decorations, empty pots or discarded tires. Insect repellent containing DEET will also help to repel this tiny predator.

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Discuss this Article

anon962553
Post 20

Could noseeums come in with clothes I hung on the clothes line?

how2do
Post 19

Does anyone know anything about bird mites?

anon945164
Post 17

Try hot water or a hot hair dryer. It will take the itching away for quite a while.

anon359577
Post 16

I agree totally with the first post. Just don't touch it. Because once you start there is no stopping. Of course you have no control over brushing against one of the many bites and starting the process over again!! Good to know they breed like Mosquitos. Will definitely check for any standing water nearby.

anon354858
Post 15

I have about 25 bites on my legs and put a paste of baking soda and water and have gotten relief within minuets! I tried every cream with no relief!

anon343041
Post 14

No See Um's have a very short life span and will quickly die off in your home, but if you see them collecting on your walls or ceiling as they easily pass through the holes of window screens, the one way I have found to get rid of them is to use the sticky peel away type lint rollers. Simply roll over them and ta-da! Then toss away the layer of the peel away roller and start fresh for round two and beyond. This works, especially since the little suckers are too small for even a fly swatter to be very effective.

anon340143
Post 13

No-see-ums can crawl right through ordinary 14x18 window/patio screens, so you'd need 20x20 to keep them out. In other words, they can get through a hole that is .07-inch square but not .05-inch. Their bites can leave large, itchy scabs that last for days.

JackWhack
Post 12

@cloudel – I've been the victim of no see um flies before, and I took an antihistamine right after being bitten. This kept me from having as bad of a reaction as I normally would have.

Also, I used aloe vera gel on the bumps that showed up on my arms and legs. It cooled the area and relieved the itching.

I've heard other people say that taking a colloidal oatmeal bath can help with the itching. Also, you can take ibuprofen to reduce the swelling of the welts.

The first time that I got into a swarm of them, I didn't know of any remedies. I just scratched my skin until it bled and stayed miserable for the rest of my vacation. Now, I take a bottle of aloe vera gel and some antihistamines with me whenever I go to the lake.

cloudel
Post 11

No see um bites can hurt as much as a jellyfish sting! I was swimming in the ocean with a few friends when we all started getting bitten, and we really thought that we were in a school of jellyfish!

The burning just would not subside. We had to wait it out, because I don't really know of any remedy for no see um bite pain.

Another person on the beach saw us jumping around and screaming and figured out that we had been attacked by no see ums. That did explain why there were no tentacle marks on our legs!

healthy4life
Post 10

@Oceana – The first time I heard about no see um bugs was when my friend claimed she was being bitten in her room by invisible insects. I thought something was seriously wrong with her, like maybe some sort of mental illness that makes you think bugs are crawling under your skin.

I think we were both relieved to find out that the bug did exist. They are so sneaky, because they are so tiny that you really don't notice them until they have already done their damage!

Oceana
Post 9

A no see um insect sounds like something straight out of a horror movie! I've never heard of this, and if anyone had told me about them, I would have thought that they were kidding. “No see um” is a suspicious name, and it reminds me of the “snipes” my brother tried to get me to go hunting at night.

anon246335
Post 8

This thing has made my life miserable beyond comprehension for the past five months.

Today, after endless research, I am going to spray garlic paste / pieces around and see how it goes, because everything else has failed.

anon194389
Post 7

@anon107139: we get them awful every year. Once I realize they have hatched, my husband sprays from the house 15 feet out into the yard and removes all the screens and sprays them as well, if they are still getting into the house after spraying the yard. He only had to do the screens once in the last seven years, though.

I wish I could tell you what it is he uses but he is unavailable. I know he found out what to use from the Fish, Wildlife and Parks dept. and gets it at Home Depot or Ace Hardware. Everyone around here uses this method to control them. The numbers getting in the house go down by around 95 percent after spraying the lawn. Hope it helps some. Good luck.

anon132022
Post 6

Try listerine in a sprayer to eliminate these pests.

This was used by an exterminator in Florida some time ago.

anon107139
Post 4

No-see-ums have made our life a living hell. Somehow they got into our home during the time that some construction was occurring close to our residence. there is a pond near this area also. we saw these bugs outside our home but were surprised when they came through our screens. Nothing we try gets rid of them (ex. sprays, swatters).

dill1971
Post 3

@cmsmith10: You can use bug spray or mosquito repellent to prevent bites. If working outdoors around moist areas or lakes, it is a good idea to wear long sleeves.

cmsmith10
Post 2

How do you keep from being bitten by a no-see-um?

apolo72
Post 1

I heard that no-see-ums are less than 1/4 inch (0.6 cm) long. Pretty tiny! Also, my trick for getting around the drive to itch bites: take your fingernail and press into the bite to make a indentation. Continue to do this until you've made a criss cross over it. Somehow that satisfies the itch without scratching the bite and irritating it more! Of course just not touching the bite at all is best!

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