Épisodes

  • Social Insects
    Dec 4 2012
    Our resident entomology expert Heather Campbell brings us another Insect Minute. This week’s topic: social insects.
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    1 min
  • Bioluminescence
    Nov 5 2012
    Our resident entomology expert Heather Campbell brings us another Insect Minute. This week’s topic: bioluminescence.
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    1 min
  • Medical Insects
    Oct 15 2012
    Our resident entomology expert Heather Campbell brings us another Insect Minute. This week’s topic: medical insects.
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    1 min
  • Termites
    Sep 25 2012
    Our resident entomology expert Heather Campbell brings us another Insect Minute. This week’s topic: termites.
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    1 min
  • Cockroaches
    Sep 17 2012
    Our resident entomology expert Heather Campbell brings us another Insect Minute. This week’s topic: cockroaches.
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    1 min
  • Bed Bugs
    Aug 10 2012

    If you would like to find out more about bed bugs visit the museum’s website at insectmuseum.org where you also find information about our museum and read our blog where we talk about interesting stuff going on in the world of entomology.

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    1 min
  • Ticks
    Aug 6 2012
    Tick Life Cycle from Centers for Disease Control and PreventionTicks find their hosts through detecting the breath, body odor or body heat of an animal or through questing. When a tick is questing for a host it will climb to the end of a leaf or tip of a blade of grass and hold on tightly with the last two sets of legs and stretch the fore legs out, holding this position until an animal comes by to climb on to. Once the tick is “aboard” it will begin looking for a place of attachment, preferably a location with thinner skin. Location found, they cut the skin’s surface and insert the feeding tube. Ticks maintain attachment either by having a barbed feeding tube or secreting an adhesive like substance that sticks the tick in place.The most common ticks found in NC are the American Dog tick, the brown dog tick, the Lone star tick and the black-legged or deer tick. The American dog tick and brown dog tick both carry Rocky Mountain spotted fever. The brown dog tick is entirely dark brown and the American dog tick is brown with white markings on the body and legs. The lonestar tick is named for the single white mark in the center of its otherwise brown body and carries the disease Ehrliciosis. The black-legged or deer tick is easily recognized by its black legs and is a carrier of Lyme disease.from Center for Disease Control and PreventionTicks can be difficult to avoid, but there are methods of prevention that can be employed to protect you. If you are going into an area where you would expect to find ticks, like a wooded area or a grassy meadow, tuck your pants into your socks. It may look‘dorky’, but it can prevent a tick from quietly latching on to your leg catching you completely unaware. If you want to increase the protection, as well as “style points”, wrap the area where your pants tuck into your socks with duct tape. New suitors may not come-a-callin’, but neither will the ticks. If you will be going camping, hunting or frequenting areas where ticks are present it is a good idea to spray your pants, socks and shoes with permethrin (allowing it to dry before donning the clothes), a chemical that has proven to be very effective in warding off ticks. WARNING*** Permethrin is toxic in its liquid form, so use gloves when applying it, do not get it on your skin or in your nose or mouth.If you do find a tick on your person and it has latched on, it is important that you move it properly. Not only do ticks carry bacterial diseases they transfer to you through their bite but they also carry different types of staphylococcus bacteria that can cause an infection at the site of the bite. Once you locate the tick, do not bother with trying to suffocate it with oils or fingernail polish in attempt to make the tick release your skin, it should be removed immediately. Remove the tick by grasping it, with tweezers, as close to your skin as possible and then squeeze the tick tightly and pull upwards, being careful not to twist or jerk the tick. Once the tick is removed sterilize the area with rubbing alcohol or by washing the area with soap and water.Now, what to do with the tick? DO NOT THROW IT AWAY! We recommend taping the tick to a calendar on the day in which you found it. If you begin to exhibiting a rash or flu-like symptoms, visit a doctor immediately and bring the tick with you. It may aid the doctor in properly diagnosing you more quickly.Do you want to have a guide to ticks in your pocket? Check out this really cool app that was developed by a professor and his students here at North Carolina State University!http://web.ncsu.edu/abstract/technology/tp-got-ticks/http://itunes.apple.com/app/tickid/id531348104?mt=8Transcript of Insect Minute 5 – TicksHi this is Heather with your Insect Minute brought to you by WKNC and the NC State Insect Museum.We have a special report on ticks this week! We go to Buzz Beesome in the field to find out more!Buzz…Buzz: We have here Miss Henrietta Hemophile. Now madam, you are a tick are you not? So, you’re not a true insect is that right? You’re a member of Acari?Tick: Yes, that’s right, our closest relatives are mites (mites)Buzz: and you’re getting ready to add to the family I see.Tick: I am indeed! Soon I will lay my eggs in the grasses around my habitatBuzz: and you just ….. leave them in the grass?Tick: They’ll be fine! Soon adorable little six-legged larvae will hatch and immediately begin searching out an appropriate host for a blood meal.Buzz: uh….Blood meal?Tick: Yes, ticks, male and female, need blood to continue development. (like milk for mammals) Once the larva feeds it molts into an 8-legged nymph which, after feeding develops into an adult.Buzz: And how do you FIND this……blood?Tick: In two ways, either through detecting the breath, body odor or body heat of the animal or th...
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    1 min
  • Cicadas
    Jul 27 2012
    Cicadas are found on every continent, with the exception of Antarctica. In fact, there are 2,600 described species in the world ranging from very large (110 mm) to relatively small (14 mm), most of which are members of the family Cicadidae. The other family of cicadas, Tettigarctidae, is a very small and relictual group that is represented by two species present only in Australia. These Australian cicadas are known as the hairy cicadas and communicate by transmitting vibrations through vegetation instead of singing like the Cicadas we are familiar with.The members of the family Cicadidae sing using organs called tymbals which are located on the abdomen of the males. The tymbal is like a drum. A complex membrane with taenidia-like striations running parallel along the surface and as the membrane vibrates and the enlarged chambers within the trachael system in the insects body act as a resonating chamber.Image from what-when-howThe males use the tymbals to attract females and have distinctive calls to ensure that they attract the females in their species. Males and females have tympana on the underside of their abdomen which the females use to hear and orient toward potential mates, while the males use the tympana to identify competing males.The life cycle of cicadas is pretty neat, a female cicada will lay eggs into the twigs of a woody host plant using a lance-like ovipositor. When the nymph hatches it drops to the ground and, using its fossorial legs, burrows into the soil where it spends the majority of its life feeding on juices it sucks from tree roots. The cicadas we are that we hear every summer are known as the dog-day or annual cicada. The latter name is actually a misnomer. Many believe that the dog-day cicada has a one-year life cycle when in fact they live underground for up to 8 years before they emerge. Because the emergence patterns are asynchronous they do not make as big of an impression. When it is time for cicadas to come above ground the nymph will dig to the surface, climb partway up the tree and molt into its adult form.The periodical cicada get the most attention because of the grand synchronized emergence that occur every 13 to 17 years. These cicadas are in the genus Magicicada, which looks a lot like magic cicada. That is not too far off when you consider that no one knows exactly how they time their appearance. What is it that signals all the members of a brood to emerge at the same time? Some researches have hypothesized that it is a temperature shift, others believe it could be that the cicadas are tracking the seasonal changes in their host plant until they reach 13 or 17 cycles. It could be a combination of both or something else entirely but because they are so long lived it is hard to pinpoint the reason. Regardless of how they do it, it makes an impact on anyone who is lucky enough to experience it.photo by billy liarIf you would like to learn more about cicadas there are plenty of websites dedicated to them. They are such enigmatic little creatures it is no surprise!DrMetcalfdatabase http://www.lib.ncsu.edu/specialcollections/digital/metcalf/cicadas.htmlCicada Mania http://www.cicadamani...
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    1 min