Connected on 2015-03-23 09:30:00 from Sublette County, Wyoming, United States
- Bugscope Team putto
- Bugscope Team putting the sample in the microscope now
- Bugscope Team haha That is the name of a single cherub.
- Bugscope Team hi!
- Teacher hi
- Bugscope Team we are just going to finish up the next few presets
- Teacher ok
- Bugscope Team are students going to log in or are you using a smartboard/projector setup?
- Teacher projector setup
- Bugscope Team we gave you controls
- Teacher thanks
- Bugscope Team you can select a preset to start with by clicking on the blue arrow to the left
- Teacher ok
- Teacher We are on the trapjaw ant- when i click on the mouth nothing happens
- Bugscope Team try again
- Bugscope Team sorry it took us a while to complete the presets today
- Bugscope Team and I forgot to give you control
- Bugscope Team this is a trapjaw ant from Brazil
- Bugscope Team and this is the abdomen of a ladybug larvae, from the dorsal side
- Bugscope Team we can see where it sat on an aphid
- Bugscope Team they are often, on the ventral side, covered with aphids; it's like they have very poor table manners
- Bugscope Team or they stick the aphids to themselves as trophies
- Bugscope Team they eat aphids as adults as well
- Bugscope Team aphids are true bugs, so they have piercing/sucking mouthparts like cicadas, stinkbugs, ambush bugs...
- Bugscope Team we also put a ladybug larva on the stub with the ventral side up, so you can see its face
- Bugscope Team please let us know when you have questions for us!
- Teacher ok
- Bugscope Team when they are larvae, as caterpilars, many of their features are relatively unrefined
- Teacher do you know how many days old the larvae is?
- Bugscope Team we can see the four palps -- the accessory mouthparts, but the antennae are short and stubby, and the eyes, called stemmata, are quite small
- Teacher does it have eyes?
Bugscope Team it has I think five eyes on each side of its head, and they are simple eyes, not the compound eyes it will have as an adult
- Bugscope Team that little wrinkled thing is one of the stemmata -- one of the eyes
- Bugscope Team we can tell male from female mosquitoes by their antennae
- Teacher What is coming out of the mosquito head that looks like hair?
Bugscope Team those are the antennae
- Teacher can you show us the sucking mouth parts?
Bugscope Team I am sorry -- on none of today's mosquitoes can we see the fascicle, which is the closely appressed set of biting mouthparts
Bugscope Team the fascicle is inside the proboscis, which we can show you
- Bugscope Team male mosquitoes do not bite...
- Teacher What are the "scales" by the antannae?
Bugscope Team those are indeed scales. they are found on moths, mosquitoes, butterflies, and silverfish, plus a few other insects
- Bugscope Team scales confer protection from spiders to moths, mosquitoes, butterflies, and silverfish because they come off so easily, they will stick to the web and the insect has a chance to escape
- Bugscope Team this is fruitfly, and you can see two kinds of eyes here
- Bugscope Team you can also see both portions of the antennae
- Teacher where is the second set of eyes?
Bugscope Team on top of the head we see three ocelli, which are simple eyes; they help the fly orient itself with the sun so it does not get lost
- Teacher are the atennae right in front of us? in the middle of the face- oval shaped?
Bugscope Team yes they are!
- Bugscope Team there is a pad-shaped part, which has a version of the Johnston's organ in it, and there is a branched part
- Bugscope Team the Johnston's organ, which is what makes the male mosquito antennae so ornate, helps the insect tune in the wingbeats of the females
- Bugscope Team we run a lab with a variety of microscopes that people on campus can be trained to use
- Teacher my kids want to know if you are a student at the university or a professor
Bugscope Team we work at the university but are not students or professors. You could call us academic professionals.
Bugscope Team yeah that is what the University calls us. we call ourselves electron microscopists
- Teacher awesome- so lab technicians
Bugscope Team we train Master's, PhD, and other students, as well as professors, to use a variety of sophisticated microscopes in order to do their research
- Teacher how do fruit flies eat? sucking mouth parts? or?
Bugscope Team their mouthparts are sponging mouthparts. it soaks up the liquids after it's saliva has made it liquify
- Bugscope Team the sponging mouthparts seem to be broken off here; we may be able to see them on another fly
- Bugscope Team this fly is so big we cannot see its whole head at one time
- Bugscope Team we can see its mandibles, near the bottom of the image
- Bugscope Team dragonflies are super fast predators
- Bugscope Team you can barely make out some of the facets of the compound eyes, on either side
- Bugscope Team the facets of the compound eyes are called ommatidia, and dragonflies may have as many as 32,000 per eye!
- Bugscope Team good job driving!
- Teacher thanks
- Bugscope Team the antennae!
- Bugscope Team they are so small
- Teacher What are the two tube looking things by the eyes?
Bugscope Team those might be where the antennae were and broke off. they have very small antennae
- Teacher ok
- Bugscope Team you can take the mag up anytime you want
- Teacher the three mountains between the antennae?
Bugscope Team I am not sure if those are ocelli or not. ocelli usually come in threes, but they are usually on the top, or back of the head
- Bugscope Team there should be an area in the top left edge of the image that says magnification
- Teacher remind me how to increase the magnification?
Bugscope Team at the top of your screen you should have controls for magnification, focus, and contrast/brightness
- Teacher I don't have any right now....
- Teacher just more info
- Bugscope Team as Cate says, magnification should be on the left
- Teacher It just shows the "currently near the dragonfly head" on left and then "more info" on right
- Bugscope Team maybe refresh your browser
- Bugscope Team this is a super small beetle
- Bugscope Team in the meantime, or if it doesn't give you controls, we can change the mag for you
- Teacher ok- can you magnify the mouth parts of the tiny beetle more?
- Bugscope Team the background we see is carbon tape -- the doublestick tape we sticj the insects to
- Bugscope Team now we see the mandibles, which open left and right like a gate
- Bugscope Team the one on the left is on top of the other one, and it is forked
- Bugscope Team the 'hinges' of the mandibles are close to the compound eyes
- Teacher and below mandible?
Bugscope Team it is difficult to make out on this beetle, but there are almost always two sets of palps, which are accessory mouthparts
- Bugscope Team insect mouths are complicated
- Bugscope Team this is the face of a cucumber beetle
- Bugscope Team you can see the palps better
- Bugscope Team there is a top flat plate over the mandibles called a clypeus that we can see now
- Bugscope Team when an insect is eating, all of that stuff is moving at once
- Bugscope Team the palps are the pointy things that resemble small arms or legs
- Teacher cool
- Bugscope Team this is the tip of one of the palps, which have things like tastebuds on them
- Teacher can you zoom out again?
- Bugscope Team there is another palp to the lower left of where we are now
- Bugscope Team you can see it now
- Bugscope Team there are mandibular and maxillary palps
- Bugscope Team the mandible in a human is the lower jaw, and the maxilla is the upper jaw, attached to the skull
- Teacher can u show us simple eyes?
Bugscope Team these are the ocelli -- the simple eyes on the top of the fruitfly's head
Bugscope Team they are said not to allow the insect to see much more than shadows and light
- Bugscope Team we xc
- Bugscope Team ooops
- Bugscope Team it looks similar to a dust mite. they are soft bodied
- Teacher do you know if this is a dust mite?
Bugscope Team yes it looks similar to a dustmite
- Bugscope Team when we see dustmites they are often dry and shriveled up; the mites we have in the microscope today have been critical point dried to keep them from shriveling uip
- Teacher do you have a dorsal view of a mite?
Bugscope Team yes we can take a look at the oribatid mite
Bugscope Team or this one..
- Teacher can you zoom into the mouth for us? and do mites have eyes?
Bugscope Team they sometimes have eye spots
- Bugscope Team you can see that we have trouble getting them on the stub in the right orientation because they are so small
- Teacher i have a diff group of kids in so showing the ladybug larvae
- Bugscope Team hey super cool
- Bugscope Team this is the dorsal side of a ladybug larva, showing its spines
- Bugscope Team ladybug larvae are predators, like the adult versions of ladybugs, and they both like to eat aphids
- Bugscope Team this is the head of another ladybug larvae, seen from the ventral side
- Bugscope Team you can see its mandibles
- Bugscope Team now we see three of the four palps, and we see a forked mandible in the middle of the image
- Teacher the kids want to zoom in on the palp that looks like an eyeball
- Teacher wow
- Bugscope Team the tip of the palp has chemosensory setae on it, like tiny tastebuds
- Teacher are those sensors of some type on end of palps?
- Teacher ok
- Bugscope Team they help the insect taste its prospective food
- Bugscope Team they also -- the whole palp does this -- help push food toward the mouth
- Teacher what are the spikes on the outside of the palp
Bugscope Team we do not know for sure but most of them are likely mechanosensory setae -- they are touch-sensitive
- Bugscope Team sometimes on palps we also find tiny pores that we believe are also chemosensory but do not require being touched -- they sense airborne smells
- Bugscope Team the male mosquito
- Bugscope Team 's eye is collapsed a bit
- Bugscope Team the donut-like piece is called a pedicel, and it is the base of the antenna
- Teacher are the hairs on the antennae sensory? or chemosensory?
Bugscope Team probably a combination of the two; also, they are sensitive to the sound of the wingbeats of female mosquitoes of the same species. the antennae help the males find the females.
- Bugscope Team we are now imaging one of the ommatidia on the compound eye of the male mosquito
- Bugscope Team the features we see are submicron -- we are imaging on the nanoscale
- Bugscope Team this is a female mosquito
- Bugscope Team this is the tip of the proboscis, which we see is covered with scales and thus not capable of piercing your skin
- Bugscope Team inside this long tube is the fascicle, which has four cutting stylets, the siphon tube for blood and saliva, and another component I'm not sure about.
- Bugscope Team this is a tiny round mite called an Oribatid, and below it is a springtail, which looks like an insect but is not quite really an insect
- Bugscope Team springtails are called Collembola
Bugscope Team they are found in leaflitter
- Bugscope Team some insects have mouthparts that produce web, and we wonder whether these do as well -- they resemble spinnerettes, on a spider
- Bugscope Team the Oribatid mite has scales stuck to its cuticle
- Bugscope Team this is a plier ant, which feeds on springtails
- Bugscope Team is anyone there?...
- Bugscope Team this is the compound eye of the plier ant
- Bugscope Team we can see that it has maybe 15 or so ommatidia, or individual eye facets
- Bugscope Team it has fearsome mandibles, like a mean dog, but they open in a different plane
- Bugscope Team the mandibles help it hold the springtails it likes to eat
- Bugscope Team this is the underside of a plier ant's mandibles
- Bugscope Team we can see the palps now
- Teacher HI- We got disconnected our internet went out district wide
Bugscope Team when you look at the transcript, later, you will see the images and text from when you were disconnected
- Bugscope Team this is an aphid -- a flying aphid
- Bugscope Team its piercing/sucking mouthparts are pointed up, toward us
- Teacher great
- Bugscope Team aphids are plant pests
- Bugscope Team pollen!
- Bugscope Team this may be ragweed pollen, but we are not sure
- Bugscope Team this is a larger ant than most of the others
- Bugscope Team ragweed type pollen are those spikey burr-like balls
- Bugscope Team you can see one of its compound eyes
- Bugscope Team no. it's like one of those black ants you might see.
- Bugscope Team this is one of its forelimbs. we can see its antenna comb
- Teacher awesome
- Bugscope Team when its leg folds a bit, it can hold the antennae between the parts we see and clean them
- Bugscope Team this is a butterfly wing, up close where we can see the individual scales
- Bugscope Team they look like potato chips, like Ruffles
- Bugscope Team the ridges are so small that they interfere with visible light and cause other colors to appear
- Bugscope Team this is pretty high mag. we can see three of the ridges, and each is about one bacterium wide
- Bugscope Team cool looking ant
- Bugscope Team please let us know if you have questions, or if we should quit...
- Bugscope Team we can shut down.. we've collected a lot of images and added comments
- Bugscope Team this is the haltere of a fruit fly
- Teacher ok- we are having problems with our internet again. But I think we are good
- Teacher how do I get back to the transcript for a future class? to show them?