Connected on 2013-05-28 13:00:00
from Leon, Florida, United States
- 12:08 pm
- Bugscope Teamsample is pumping down for today's session
- 12:17 pm
- 12:23 pm
- 12:29 pm
- 12:38 pm
- 12:45 pm
- 12:51 pm
- 12:58 pm
- Bugscope Teamhello! Welcome to Bugscope!
- TeacherHello Bugscope
- Bugscope Teamwe're securing the last few presets for you
- TeacherThank you
- Bugscope Teampollen!
- Bugscope Teamthis is pollen from a lily
- 1:03 pm
- Bugscope Teamwe're done with the presets, so you are welcome to drive if you would like
- TeacherIs that from our bee sample?
Bugscope TeamCate put it to complement everything else. The bees also have pollen on them.
- Bugscope Teamwhen we get up close we see charging from places where the electrons cannot escape from the sample
- Bugscope Teamso it does not always look good...
- Bugscope Teamthat's what the bright glow is from
- Bugscope Teamin our experience lily pollen looks like this
- TeacherWhat are the cracks under the pollen?
Bugscope Teamthat is the surface of the carbon doublestick tab the specimens are attached to
- 1:08 pm
- Bugscope Teamyou can see its antennae, the labrums, the glossa
- Bugscope Teamyou can see its compound eye now
- Bugscope Teamand the antenna...
- TeacherWhat is the highest magnification we can use?
Bugscope Teamtoday probably around 20,000x before things start charging up
- Bugscope Teamthe setae on the eye are likely mostly mechanosensory; some could be chemosensory
- TeacherWhat are the hairs on the eye?
Bugscope Teamthose are setae, which are hairs. We call them setae because they aren't mammalian hairs
Bugscope Teamthese are sensory hairs, these are most likely sensing changes in wind speeds/direction etc...(mechanosensory)
- 1:13 pm
- TeacherWhy do the compound eyes have the hexagon shape?
Bugscope Teamthat is the most efficient shape for generally circular lenses in a dome-like configuration
- TeacherAny idea what these things are stuck to the setae?
Bugscope Teamsome of the things we saw earlier were pollen; this looks like a shriveled mold spore.
- Bugscope Teammold spores are usually smaller than pollen, less spikey, and also more likely to shrivel as they dry
- Bugscope Teamthis is cool
- Bugscope Teamdifferent kinds of pollen and mold spores
- Bugscope Teamthe mold spore that looks like a gumdrop in the center back (top) portion of this view has a tiny mold spore next to it that looks like an amphora
- Bugscope Teamoops now we're at a higher mag
- Bugscope Teambacteria, if we see them, are usually about 2 microns long
- 1:18 pm
- TeacherWhat is an amphora?
Bugscope Teamone of those jugs you see underwater near an ancient shipwreck
- Bugscope Teamblunted stinger
- TeacherWhat is the starfish-thing next to it?
Bugscope Teamflying spaghetti monster
Bugscope Teamsome sort of plant material I think
- Bugscope Teamwe see those often but are not sure what they are
- Bugscope Teamwe think they are plant material that gets blown around, dispersed, before settling and growing into a plant
- Bugscope Teamit may be that wasp stingers are less barbed, but wasps sometimes need to be able to secure their stingers in their prey sometimes
- TeacherIs it normal for the bee to be barbed but not the wasp?
Bugscope Teamwe see both
Bugscope Teamyea, most stingers are barbed, it's just that the stinger barb is more pronounced in honey bees, which leads to the stinger getting stuck more easily
- 1:24 pm
- Bugscope Teamhoneybee stingers get caught in mammalian skin, which is thick; when honeybees sting other insects they do not lose their stingers
- Bugscope Teammicrosetae
- Bugscope Teamthe compound eye
- Bugscope Teamsome large hornets can have as many as 17,000 ommatidia (the eye facets) per eye; dragonflies can have as many as 32,000 ommatidia per eye
- 1:29 pm
- TeacherWhere does the food go in?
Bugscope TeamI am not sure how these work; they have a tongue that is absorbent
- Bugscope Teamthe tube is a broken-off maxillary palp
- Bugscope Teampalps are accessory mouthparts, like little feelers or extra limbs that help insects taste and manipulate food
- Bugscope Teamthis is pretty cool
- Bugscope Teamplus they (bees, wasps, hornets, and dragonflies) have three simple eyes, called ocelli, on the top of the head
Bugscope Teamthe ocelli is sensitive to changes in light, and so can aid in stabilising flight and motion detection.
- 1:34 pm
- TeacherI wonder why some pollen grains are less complex than others.
- Bugscope Teamsome have to travel further than others, and some have different landing surfaces to attach to on flowers
- Bugscope Teamthe stigma on different plants are as distinct as the pollen that sticks to them
- Bugscope Teamon different flowers...
- 1:40 pm
- Bugscope Teamthis is a great opportunity to see what the inside of the antenna looks like
- Bugscope Teambees are unlike other insects in that they have forked setae -- forked hairs -- on some parts of their bodies
- Bugscope Teamthe chemosensors sense the chemicals others make, like chemical trails
- TeacherWhy are there separate sections of the antenna?
Bugscope Teamthat is so they can bend
- TeacherOur beekeeper just walked into the room. She collected the bees for us.
- Bugscope Teamthe little plate-like things we saw at higher mag are chemosensors called placoid sensillae
- Bugscope Teamoh cool!
- Bugscope Teamthis is the tibia
- Bugscope Teamwas the darker (blackish) one a bee or a wasp?
- 1:45 pm
- Bugscope Teamthe setae on the compound eye also likely have a thermoregulatory function
- Bugscope Teamhamuli!
- TeacherIs it a mating structure?
- TeacherWhat are hamuli?
Bugscope Teamthey're hooks that hook the wings together, so that they're beating in tune.
Bugscope Teamon bees, the hooks are on the hindwings
- Bugscope Teamhamuli are found on the leading edge of the hindwing, and they clip to a ridge on the forewing when the bee (or wasp) flies
- Bugscope Teambees and wasps and ants, if they have wings, have four wings
- 1:50 pm
- Bugscope Teamsome wasps have much smaller clips
- TeacherCan you help us look at a wing?
- Bugscope Teamyes!
- Teacherto the wing!
- Bugscope Teamthis is one of the hindwings
- Bugscope Teamyou can see microsetae on the surface of the wing
- TeacherWould there be any parasites of other pests in our speciemens?
- Bugscope Teamyour bees did a really good job pollinating. They are everywgere
- Bugscope Teamwhere*
- Teacheror on...
- Bugscope Teamwe didn't notice any mites
- 1:56 pm
- TeacherDo the projections help with aerodynamics?
Bugscope TeamJose is an entomologist, and he may know; I think that the projections help keep the wings from sticking to flat surfaces when they are wet
Bugscope TeamI do not know the answer to this question.
- Bugscope Teammicrosetae may also strengthen the wing, and they likely also help trap air and create more surface area
- TeacherYou all are awesome. We've learned so much. We have a classmate named Jose.
- Bugscope Teamawesome!
- Bugscope TeamSweet!
- Teachero_0 We had a great time!
- Bugscope Teamthanks for sending us the cool bees! Be sure to let your beekeeper know
- Bugscope Teamgreat! glad you guys enjoyed it.
- TeacherBugscope is a great program. We will do it again in the future.
Bugscope Teamit is super fun for us; we appreciate it