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Bed BugsCimex lectularius
Bed Bug Identification
Unfed adults are mahogany; engorged bed bugs are red-brown. Nymphs are nearly colorless.
Flat, broad oval when unfed; swollen and elongated when fed.
Adults are 1/4 inch long. Nymphs range from 1.3 mm to 4-5 mm.
Found throughout U.S.
How to Identify Bed Bugs
Bed bugs are an?oval shape and?only grow to about 3/16th?of an inch?in length.?Prior to feeding, they?are brown and flat. After feeding,?bed bugs?become more?red?in color,?swollen,?and elongated.?Bed bugs?have?6 legs?and?2?antennae.?Despite?having reduced?“wing pads,”?bed bugs do not have wings and cannot fly.?
Adult?bed bugs are visible to the human eye and can be detected?by sight, especially within mattress seams and box springs.?Bed bug?nymphs?can be harder?to?identify,?as they?are smaller in size and paler in color.??
Signs of a Bed Bug Infestation
Bed bugs?are most easily?identified?by small reddish-brown fecal spots on mattresses, upholstery or walls.?If these spots are found, it can?indicate an infestation.?Bites on the arms and legs are also a?tell-tale sign?of bed bugs. While these?bites can be small,?if they swell and become itchy, they are noticeable.?It?can take?two?to?three?days for these bites to appear, allowing the infestation to grow.?However, bites alone do not indicate an infestation without other bed bug evidence.??
Infestations can also be identified by sightings of bed bug molt skins, their eggs,?empty eggshells, or the bugs themselves.?All of these things are quite small, but still visible to the human eye. Bed bug molt skins as well as their?eggshells?appear?pale white after molting or emerging from the eggshell, respectively.?
Bed Bug Photos
Photo of an unfed adult bed bug on the skin
Photo of a male and female bed bugs with eggs
Photo of a bed bug to scale on a penny
Close-up photo of the head and thorax of a bed bug
Photo of a bed bug on human skin
Photo of an adult bed bug on a piece of velcro
Photo of bed bug skins - a telltale sign of a bed bug infestation
Photo of a baby bed bug and fecal spots
Snapshot of the appearance and distribution of bed bugs
Bed Bug Infestation
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Where do bed bugs come from??
Because?bed?bugs can be found in any location?where humans congregate and spend extended time, it is important to?be on the lookout for bed bugs when using public transportation or sitting in public spaces like libraries. In particular, hotel rooms should be thoroughly inspected before sleeping in the bed.?Check?the bedsheets for tell-tale blood spots?or sightings of the bugs or?eggshells.?Use a small flashlight to assist with visual inspections.?Because bed bugs also tend to?travel easily,?be sure to vacuum suitcases and inspect for any signs of bed bugs?upon returning?from a vacation. Also consider bringing a large trash bag to keep your suitcase in during hotel stays?and wash clothes on hot cycles once you return home, even those that haven’t been worn.??
Additionally, never bring second-hand furniture, especially mattresses and box springs,?into a home without thoroughly examining for signs of?bed bugs. You might consider having a?pest control professional?inspect the furniture as it is difficult to detect an infestation if you are untrained.??
Bed Bug Education
So,?where do bed bugs come from??Bed bugs?are excellent at traveling well hidden. They will latch onto suitcases, boxes, shoes and?other items?and?travel?on?the objects to a new home. Once introduced into a new environment, they will spread?throughout their new?surroundings, whether it be a?large?building or a?single-family?home. Bed bugs?can take up residence?in many places besides just a?bed,?such as the cracks and crevices in walls or wood. They?also?like to hide behind baseboards, around mattress buttons,?within?bedding and inside?box springs.?In some instances,?bed bugs?can come from?inside?electrical switch plates, picture frames,?and?wallpaper. These elusive pests can be found?nearly anywhere inside a home, car, bus, or other shelter.?In hotels, the most common place to find bed bugs?is?within?the backside of headboards that are mounted on walls.?
The National Pest Management Association’s 2018?Bugs Without Borders Research?uncovered that bed bugs can be found just about anywhere.?The?three most common?structures?bed bugs?were?discovered?were?single-family homes (91 percent), apartments/condominiums (89 percent) and hotels/motels (68 percent),however?they?were?also?found in places one might not expect,?including?nursing homes (59 percent), schools and daycare centers (47 percent), office buildings (46 percent), college dorms (45 percent), hospitals (36 percent) and public transportation (19 percent).?It is important to?know how to?identify?the?tell-tale signs of?bed bugs?whenever spending time?in a populated area.???
Bed bugs usually come out at night to eat. However, they are opportunistic?feeders?and?will?take a blood meal during the day, especially in heavily-infested areas. Bed bugs usually require 5-10 minutes to engorge with blood. After feeding, they move to secluded places and?congregate?for?several?days?until they are ready to feed again. During this time in the bed bug life cycle, they digest their meal, mate, and lay eggs.?It?is possible for adult bed bugs to go several months without a blood meal.?They also can?withstand?temperatures?from?nearly freezing up to 122 degrees?Fahrenheit,?allowing them to survive in?harsh conditions.??
Although bed bugs can dine on?many?warm-blooded animals, they primarily?feed?on humans.?Because their?bites are nearly painless, humans?usually?don’t?notice?or?wake up?when bitten.?Bed bugs do not transmit disease, but their bites can?cause?red, itchy welts.?These bites do not need professional treatment,?and?people who experience severe itching usually can find relief with topical steroid creams.??
Perhaps the most?alarming?feature of bed bugs?is their?fast-reproductive?nature. Females lay 1-5 eggs per day, reaching up to 541 eggs in their lifetime. It only takes about 21 days for these nymphs to become adult bed bugs.?If a?bed bug population?goes?undetected, these bugs?can quickly?infest an entire household or building.?Once established, an infestation can be extremely difficult to get rid of.?
Bed Bug Bite Symptoms
Humans are the preferred host for bed bugs, and they will latch onto skin that is exposed while the host is sleeping. Although the bite is painless at the time?of the attack,?most people develop an allergic reaction to the saliva that is transmitted during the bite. This is what causes bites to?become red, itchy and swollen.?Bites tend to be found in a pattern or in small clusters. This can be an indication that the bites are from bed bugs and not a different pest.?
However, some?humans never have a reaction to bites, making a?bed bug?infestation hard to?identify. After times of extended exposure, it is possible for humans to reach a point where they no longer have a reaction?or their reaction may become more severe.??