Connected on 2014-10-06 11:00:00 from Contra Costa County, California, United States
- Bugscope Team microscope is pumping down with sample in it; electron gun is coming up (normally it would already have been on); so far so good
- Bugscope Team electron beam is still coming up; close now
- Bugscope Team making presets!
- Teacher Here I am
- Bugscope Team good morning!
- Teacher so excited
- Bugscope Team things are working well
- Bugscope Team we would like to make some more presets, so if you can hold off on driving for a little while longer..,.
- Bugscope Team We are ready to roll!
- Bugscope Team YEOMAN, you have control of the scope!
- Teacher ok... can i please have 4 minutes?
- Bugscope Team as much time as you'd like -- it's all yours
- Bugscope Team Sure. We're just letting you know we're done with the setup.
- Teacher Thank you
- Bugscope Team this is a cute little leafhopper
- Teacher he is pretty cute
- Bugscope Team like a Klingon
- Bugscope Team it has pumping capacity in the center of its head (I don't know if it is a male or a female)
- Bugscope Team Yeoman you can select from the presets now, as well.
- Bugscope Team The pumping structure Scot is referring to is called a rostrum, or beak. It is the insects mouthparts and consists of a modified labium, or lower lip, which forms a sheath around the maxillary stylets, which are used to pierce plant tissue. All true bugs have this kind of modified mouthparts
- Bugscope Team leafhoppers produce nanoparticles (250 to 400 nm in diameter) from their Malpighian tubules and 'anoint' themselves with them. The nanoparticles are called brochosomes.
- Bugscope Team here we see the mouthparts. leafhoppers are 'true bugs,' with piercing/sucking mouthparts
- Bugscope Team this is the head of a yellow butterfly
- Bugscope Team at first I thought it was a moth
- Bugscope Team the image is really bright because it is charging up with electrons, despite our having coated it with gold-palladium
- Bugscope Team there is a separate preset of its ommatidia -- the facets of the compound eye we are looking at
- Bugscope Team This is another type of true bug, a stink bug. you can see that it also has a rostrum for mouthparts
- Bugscope Team this is another true bug -- a stinkbug!
- Teacher What is that bulb on the side of it's head
Bugscope Team those are its compound eyes!
Bugscope Team Eyes.
Bugscope Team Insects typically have two compound eyes composed of many facets, called ommatidia
- Teacher We are 2/3 graders so...we are making our best guesses
Bugscope Team That's good that your students are guessing. I've never smelled a stink bugs eye before... maybe they are a little stinkier than the rest of the bug ;)
- Bugscope Team the stink glands are on the ventral side of the body -- the underside, where the legs are. they are found beneath the second set of legs.\
- Teacher oh! We thought that might be his stink making glands
Bugscope Team Not sure that those are visible. Josh could confirm, but I think they'd be at the other end of the body.
Bugscope Team Yes, the stink glands are located internally in the abdomen of the insect. I'm not sure where they open out at, but I suspect it might be at the "posterior end" of the insect... ads a whole other meaning to the term stink bug....
- Teacher Haha, that's funny.
- Bugscope Team the stink gland openings have absorbent tissue around them that is super cool looking if it is not covered with dried fluid, as it is today
- Teacher We want to know if that is hair on the top of it's head?
Bugscope Team we're not supposed to call it hair, so we call it setae, or bristles, or spines. and then we give up and call it hair again
Bugscope Team In insects, hairs, or setae, often have sensory functions. because insects have an exoskeleton, they have to have modified parts of their exoskeleton to allow them to sense their external environment. Hairs can be mecanoreceptors (i.e. touch receptors), or chemoreceptors (smell sensors).
- Bugscope Team setae are very important to insects and other similar arthropods because they are used to help sense the environment
- Teacher now we are wondering how many of those little dots there are on the eyes
Bugscope Team Ive never counted... probably thousands. It varies between insects... some have fewer than 50
- Teacher We are guessing 274,000
Bugscope Team Sounds like a good homework assignment... or punishment for someone being naughty in class! :)
Bugscope Team haha -- in this case I think about 3000 per compound eye. a dragonfly and some large hornets may have as many as 30,000 per compound eye
- Bugscope Team some ants will have twelve, or even fewer; some ants do not have eyes at all
- Teacher Now, we think this bee head looks like a monster
Bugscope Team A fuzzy and adorable monster? :)
- Teacher Haha, fuzzy yes...and a little scary
- Bugscope Team we can see its tongue if we look down further
Bugscope Team Bee tongues are also used for sucking fluids, like true bug mouthparts, but are more similar to straws, where bug mouthparts are more similar to needles
Bugscope Team this one really is like a straw, and we can see that at the very tip\
- Bugscope Team now we can see where the labra part and the glossa is starting to show
- Teacher what does he use his tongue for?
Bugscope Team he pushes it into flowers and extracts nectar
Bugscope Team Its most likely a She. All worker bees are female
Bugscope Team haha Of course. Sorry.
- Bugscope Team this is actually a firefly, I believe
- Bugscope Team I forgot to change the label, not recognizing it.
- Teacher part
- Bugscope Team we are always happy to have new critters, especially in the dead of winter
- Teacher which part is the glowing
Bugscope Team The tip of the abdomen glows, usually the last two or three segments (I.e. the insects bottom)
- Bugscope Team so cool looknig
- Bugscope Team looking...
- Teacher very cool
- Bugscope Team you can see a butterfly wing scale on the left...
- Teacher yes
- Teacher what is that hairy thing sticking out under the eye
Bugscope Team under the right eye, to the left, one of the antennae
Bugscope Team the other antenna is broken off
Bugscope Team under the antennae, but above the mouthparts there are long setae most likely used to help filter food. In case thats what you were asking about.
- Teacher yes that answers our questions perfectly
- Bugscope Team the wing scales are stuck to the right antenna, which is on the left because we are looking at the lightning bug from the front
- Bugscope Team Fireflies are so cool. We didn't get very many this year. I've heard there are concerns about their populations being reduced.
- Bugscope Team setae can see mechanosensory, meaning they can sense touch, or wind
- Bugscope Team Scott is going to move the image for you a bit.
- Bugscope Team Now you can see the pollen better.
- Bugscope Team setae can be thermosensory as well, meaning they sense temperature, like hot and cold
- Bugscope Team we often see spikey pollen grains like this
- Bugscope Team I thought they were from ragweed, but it may be that lots of pollen look like that
- Bugscope Team you can se two curved claws here, and above them are deflated little bags that can be inflated to help the stinkbug hold onto surfaces
- Bugscope Team the claws can open and close using a tendon called an unguitractor
- Teacher So what are those long things hanging off the claws
Bugscope Team the long things are mechanosensory setae that let the insect know when it has touched something
- Bugscope Team insects do not have skin like we do. instead they have an exoskeleton, which is kind of like if you were wearing armor all of the time
- Teacher Thank you so much for letting us look at these bugs up close!
- Bugscope Team the setae stick through the armor and help the insects sense touch, wind, hot/cold, and all kinds of smells
- Bugscope Team Thank you for logging in today!
- Bugscope Team they are so cool looking!
- Teacher we were surprised to see that these bugs looked like vampires and monsters
Bugscope Team Just in time for Halloween.
Bugscope Team Fortunately, many of them are quite harmless and even beneficial to us.
Bugscope Team I personally think they're cuter than puppies, but maybe thats just me :)
- Bugscope Team http://bugscope.beckman.illinois.edu/members/2014-065
- Bugscope Team this is your member page for today's session
- Teacher GREAT!
- Bugscope Team sy
- Bugscope Team Yaya
- Bugscope Team yay! cannot
- Bugscope Team type
- Bugscope Team Scott has fumblefingers today.
- Bugscope Team see you next year?
- Teacher Yes, we are going to talk about the things they do for the environment later today
Bugscope Team They do far more than people imagine and are incredibly important for our food supply.
- Bugscope Team time to shut down?
- Bugscope Team Thank you, Everyone!
- Teacher Sure, where do I provide feedback? That was amazing! The kids loved it
Bugscope Team A link should be in a message from Kendra when you were first scheduled. But Scott is looking it up to paste it here.
Bugscope Team I can resend the original message that should have the link in it.
Bugscope Team Ooops. Maybe not here. Check your mail later.
- Bugscope Team Awesome!
- Bugscope Team Thank you!
- Teacher Thank you I will! I really appreciate it...that was great!
Bugscope Team We hope you'll come back again soon!
- Bugscope Team K I am shutting us down...
- Bugscope Team Bye!
- Bugscope Team Bye!
- Bugscope Team Bye!