Connected on 2014-05-28 12:30:00 from Alameda County, California, United States
- Bugscope Team setting up for today's Bugscope session, May 28
- Bugscope Team presently we're waiting for the vacuum to get better so we can turn on the electron beam
- Bugscope Team hi Mrs M!
- Guest We are a grade 2 class in Canada that just came to check it out. Very interesting pictures!
- Bugscope Team Nice to have you!
- Bugscope Team you are welcome to work with us in the future if you would like, of course
- Bugscope Team What part of Canada are you in? We'd be happy to have you join us for your own session.
- Bugscope Team this is live imaging, using a scanning electron microscope
- Guest Now that we have found your cool website and program we will try to set up our own. We are in Leduc, Alberta, which is near Edmonton.
- Bugscope Team Nice! I've not been to Alberta yet, but would love to visit. And please do sign up.
- Bugscope Team At the moment, we are preparing for another session that begins in 15 minutes. You are welcome to continue to observe as their students control the scope.
- Bugscope Team Scott is just crusing around looking for cool things so their students have some places to start.
- Bugscope Team cruising
- Bugscope Team We're looking at some salt crystals now. We occasionally put a few things other than insects on the stage.
- Guest Thanks! We will periodically check it out so we can see how another class interacts with the microscope images.
- Bugscope Team The school that should be participating in 10 minutes is also 2nd grade.
- Bugscope Team If you can continue to check in periodically, that would be great. If for some reason the school in California cannot participate, we will let you know. You may be able to try driving the scope yourself - with Dr. Scott's approval, of course.
- Bugscope Team we are ready to roll!
- Bugscope Team Greetings!
- Bugscope Team Welcome to Bugscope!
- Bugscope Team The scope is ready for you. You can take control at any time.
- Teacher Hi, Daniel. We are ready.
- Teacher how do we operate the scope?
- Bugscope Team You can start by clicking on the presets to the left. The blue arrow on the left will show you which ones are available.
- Bugscope Team you can click on any of the presets, on the lefthand side of the screen, and the 'scope will drive to that place
- Bugscope Team By clicking on one of the preset buttons, you jump to that location.
- Bugscope Team You can then use the + or - buttons at the top to zoom in our out. And to move, just click on some place in the image.
- Bugscope Team you can also click on the controls just above the screen to change the mag
- Bugscope Team For instance, to move down the body of this wasp, click on the bottom of the image to move along.
- Bugscope Team also to adjust the contrast/brightness and focus
- Bugscope Team The blue arrow on the left will cause all of the presets to slide into view. Then you just click on the one you want to jump to.
- Bugscope Team please let us know if you have any questions or problems
- Bugscope Team All right!
- Teacher what do we do now?
- Bugscope Team You can see the eyes here, and the mouth parts are in the middle. The eyes are those two round things that look like golf balls. They're roughly at 1 o'clock and 7 o'clock.
- Bugscope Team Go exploring! Ask us some questions! Whatever you want to do! :)
- Bugscope Team You can zoom out to see more of this beetle. Click on the - sign by the word magnification.
- Bugscope Team Or you can zoom in to see more of its mouth.
- Bugscope Team There you go. You're moving down the beetle body!
- Bugscope Team you can click on something you would like to be centered, and you can then magnifiy that area
- Bugscope Team Zoomed in on the mouth a bit too.
- Bugscope Team now we are looking at the beetle's mouth
- Bugscope Team we can see that it has two mandibles (jaws) that open left and right like a gate
- Bugscope Team this is the side of the head, and to the top we can see some of the eye facets, which are called ommatidia
- Bugscope Team Here's a hint: if you want to move long distances, it is often easier to hit - by the magnification first, then move. Scott just tweaked the picture a bit so you could see the eye better.
- Bugscope Team insects do not have knives and forks, but they have little feelers called palps that help them taste and also manipulate their food into their mouths
- Bugscope Team Good work. Right on the eye. The eye is made up of "ommatidia", little lenses that focus light so it can see.
- Bugscope Team the little hills we see are the eye facets, and here we also see a single seta, which is what the hairlike things are called
- Bugscope Team insects often have dome-like eyes like this; it helps them see all around themselves without turning their heads
- Bugscope Team do you want to see what a ladybug looks like before it turns into a ladybug?
- Teacher We have a question: Can we look inside the lens of the eye?
- Bugscope Team Not right now. We can only see the outside of the insects here.
- Bugscope Team we cannot see through the surface of the eye with electrons
- Bugscope Team If we used a different type of microscope, we could do that. It would be tricky, but it could be done.
- Teacher Lets see the ladybug before it turns into a ladybug!
- Bugscope Team so pretty!
- Bugscope Team this is a ladybug larva
- Bugscope Team Scott just clicked on the preset for you. It is called Ladybug Larva Head.
- Bugscope Team they have big spines on their bodies to discourage other insects and also animals from trying to eat them
- Bugscope Team You can zoom out some if you want to see more of the little larva. (A larva is like a caterpillar, except here instead of becoming a butterfly, it will become a ladybug.)
- Bugscope Team I'm Scott, but I'm using the scanning electron microscope (SEM) computer
- Bugscope Team Its body is really neat looking. It is all covered with the little spine-like structures.
- Bugscope Team Scott is driving over to show the base of the antenna and the little round things are the eyes of the larva.
- Bugscope Team Nice. Keep zooming out!
- Bugscope Team Now if you move down a bit.
- Bugscope Team You'll see the rest of the body.
- Bugscope Team There's another one to the upper left.
- Bugscope Team you can see its friend, to the left
- Bugscope Team Scott drove over a bit so you could see the body of the other one.
- Bugscope Team There's some more of the legs.
- Bugscope Team There "are" some more of the legs, along with a nasty looking head.
- Bugscope Team ladybugs eat aphids, among other insects, but they particularly like aphids
- Teacher We have another question: How does an animal react when it eats the ladybug larva?
- Bugscope Team I know how I react: blech! :)
- Bugscope Team ladybugs have two defenses, and one is that they taste bad
- Bugscope Team so the animal may spit them out right away
- Bugscope Team yuck!
- Bugscope Team The Asian Ladybugs that are invasive have a really foul smell. I've accidentally inhaled an adult and it tastes awful. It won't hurt you, but it is gross.
- Bugscope Team but the larva also have those spines, because they are not brightly colored like the adults
- Teacher Can we go really close to the ladybug larva mouth?
- Bugscope Team the red color is a warning that they are bad tasting
- Bugscope Team Yes. Zoom out first to the lowest magnification. Scott is showing the remnants of an aphid it ate.
- Bugscope Team Here is its mouth with the remnants of its last meal in the mandibles. Mandibles are similar to jaws. They are used to crush the food so the larva can slurp it up.
- Bugscope Team messy eaters
- Bugscope Team (Scott just jumped there for you.)
- Bugscope Team We don't know what it last ate.
- Bugscope Team Something small. What is left is dried up bug pieces that have become little crystals.
- Bugscope Team we can see that the food was a liquid, and when it dried it formed crystals
- Teacher Did the ladybug larva spines hurt when people touch them?
- Bugscope Team The liquid that was part of its meal became crystals, just like when you have salt water dry down to make salt crystals.
- Bugscope Team Nope. These ones are very safe.
- Bugscope Team Ooops. I should have replied directly to that question.
- Bugscope Team crystals
- Bugscope Team The spines are used to scare away predators, but in this case they don't hurt. Some insects *do* have spines that sting or produce chemicals that will burn your skin, but not the ladybug larva.
- Guest My grade 2 class is wondering how long before a ladybug larva turns into an adult?
- Bugscope Team I think about 6 weeks but Daniel is checking...
- Teacher Why does it look so webbed, or web-like?
- Bugscope Team It depends upon the type of ladybug. The native ones along the west coast can take just a few weeks - about 30 days to go from egg to adult. I'd assume the ones in the midwest of North America are going to be similar.
- Bugscope Team It is kind of webbed because some of it is fungus that has grown on the larva after it died.
- Bugscope Team Some if it is also "setae" - the "hairs" on the larva. If it is attached directly to the insect, it is a setae (pronounced "see tea"). The stuff laying on the surface is a fungus.
- Bugscope Team Scott is driving over to show you some of the side of the larva.
- Bugscope Team Mrs. M: did you see my answer to your question?
- Bugscope Team this is a super cool looking wasp
- Bugscope Team we can see that in addition to its compound eyes, it has other eyes on top of its head
- Teacher What is all that crumply body part on the abdomen?
- Bugscope Team Scott will cruise down there for you...
- Bugscope Team Here we go. Those dimples are part of the wasp's "exoskeleton".
- Teacher Is that the wing?
- Bugscope Team Yes!
- Bugscope Team He's moving over there so you can see one of the four wings.
- Bugscope Team Wasps and bees, and sometimes ants, have four wings - two on each side of the body.
- Bugscope Team ants that have wings are either males or the queen
- Bugscope Team but when they do have wings, there are four
- Bugscope Team The wings are neat because they actually hook together in flight. We couldn't find the hooks called hamuli on this wasp, but it looks like a spiral-bound notebook.
- Bugscope Team flies have only two wings
- Bugscope Team If you zoom in, sometimes you can see that the wings have "setae" on them too.
- Teacher Are there any females beside the queen that have wings?
Bugscope Team Typically only the queen and the males have wings. And often the queen loses the wings once she starts laying eggs.
- Bugscope Team You can see some of the setae on the left, and many of those bright dots are probably the base of setae as well, though I can't tell at this magnification.
- Teacher Can we look at the stinger?
Bugscope Team We tried finding a stinger, but couldn't. We'll drive down to that area, but it has either broken off or it is internal to the wasp right now.
Bugscope Team Here is where it is supposed to be. We think that it got broken off as the wasp dried out.
Bugscope Team We'll go to the other wasp to see if we can find it there.
- Teacher What is that?
- Teacher How does the wasp look when it is born?
Bugscope Team Wasps look like little white grubs.
Bugscope Team Scott is looking for the stinger of the other wasp.
Bugscope Team After the eggs are laid, the eggs hatch to form little white grubs. Depending upon the wasp, these can be very tiny living inside a hive, or can actually be feeding off another insect.
- Bugscope Team The larva eventually "pupate" to become the adult. When the adult comes out, it looks just like all the others.
- Bugscope Team This is the area where the stinger should be. But it is missing.
- Bugscope Team Scott's moving over to the bee right now. We couldn't find a stinger on it either!
- Bugscope Team As you can see, the bee has setae that are feathery. This helps the bee hold pollen since it needs pollen in order to survive.
- Bugscope Team Those little bumps in the center are the ocelli - (oh-sell-eye) - which help them to sense the area around them and to keep their orientation to the sun. They are like eyes, but aren't as complex as the big eyes you saw earlier.
- Bugscope Team bees are said to be the only insects that have branched setae like this
- Bugscope Team You can see lots of dust trapped in the setae here. We were hoping to see some pollen but haven't found anything that we can say is definitely flower pollen.
- Teacher How old do wasps and bees live before they get old and die?
Bugscope Team Many of them only live for a few weeks. However, some bee queens will actually overwinter to help found the next colony in the spring.
Bugscope Team The "yellow jacket" wasps that are a nuisance in the fall - at least here in Illinois; don't know if you have these in California - are out hunting for sugar because the queen isn't caring for the hive. They'll soon starve before winter hits.
- Bugscope Team This is part of the antenna on the bee.
- Bugscope Team Now on to the eye.
- Bugscope Team Scott is looking for pollen so you can see what it looks like.
- Teacher What are those things on the eye?
Bugscope Team The chunky stuff is dirt. The bumps are the ommatidia (om-muh-tid-ee-uh) are the facets of the eye.
- Teacher That is pollen?
Bugscope Team Yes. This is lily pollen on the wing of a wasp.
Bugscope Team Looks like a little football.
Bugscope Team Each species of plant produces unique pollen. You can tell what plant the bee visited just by looking at the pollen.
- Bugscope Team Pollen actually sprouts like a seed when it finds a female flower. This causes a little tube to form in the flower that helps get the seeds started.
- Teacher What are those little spikes?
Bugscope Team These are more setae on the wing of the wasp.
Bugscope Team They are small, and are thought to help the wing fly properly.
- Bugscope Team one really cool thing we found out about recently is that microsetae can inhibit bacterial colonization
- Bugscope Team the microsetae may actually impale bacteria
- Teacher Are they sharp?
Bugscope Team Yes, but they're flexible. They won't hurt you. They're also very tiny, so you probably wouldn't even feel them if you rubbed your finger over the wing.
Bugscope Team As Scott said, they can hurt bacteria, but they won't hurt you.
- Bugscope Team so they can be very sharp on a very small scale
- Bugscope Team This is the tarsus (tar-suss) of a beetle claw.
- Bugscope Team These setae near the claw help stick to things.
- Teacher Can we see a pollen basket on a bee's leg?
Bugscope Team Click on the bee head preset and let's drive down there.
Bugscope Team Ok, see if you can drive down to the bottom.
Bugscope Team Just keep clicking at the bottom of the image. It will take us to the base of the bee.
- Bugscope Team We're not sure if the pollen basket is there.
- Bugscope Team Or do you want us to cruise down there?
- Bugscope Team Scott just dove down there but we don't think we can see a pollen basket. This isn't a honey bee, so it may not have a big basket at all.
- Bugscope Team see you next year!
- Bugscope Team Thanks for trying it out!
- Bugscope Team Thank you!
- Bugscope Team Mrs. M: you still online?
- Guest I am but we are just heading off for lunch too. It was fantastic, I think I enjoyed it more than my grade twos!
- Bugscope Team We hope you'll consider submitting an application when school resumes.
- Guest I will for sure, I'm glad I found you and will mention to other teachers in my school.
- Bugscope Team we were sorry not to be able to find stingers or pollen baskets, but it is often like that -- we do not always get to see what we want
- Bugscope Team Actually, you can submit an application at any time, so if you want to set up something for the fall, you can get your name in this week.
- Bugscope Team still we find cool stuff, to us at least
- Bugscope Team If you have problems with the application form, you can contact us directly. Just a second...
- Bugscope Team firstname.lastname@example.org - or look on the web page for a link.
- Guest Thanks!
- Bugscope Team The reason I mention it is that we've discovered that Windows 7 & 8 tend to fill out information in the proposal form that causes problems on our end. So if you submit one online and it doesn't send you an email back saying your application was submitted, please email us.
- Guest okay, I will keep that in mind.
- Bugscope Team We're logging off now, so if you have any questions, just contact us!
- Bugscope Team Thanks for watching and asking questions! Also, you can submit your own insects to us to look at.
- Bugscope Team Bye!