Connected on 2013-10-10 16:30:00 from Alameda, California, United States
- Student HI there~
- Student We will be back in a bit!
- Bugscope Team haha Awesome
- Student Are we all set?
- Bugscope Team ready to roll
- Bugscope Team you have control now
- Student Thanks!!
- Bugscope Team I can give 'Michele' control if you wish.
- Bugscope Team this is the tip of the haltere of a cranefly
- Bugscope Team oops messed you up
- Bugscope Team be sure to let us know when you have questions
- Student What is haltere of a cranefly
- Bugscope Team craneflies are flies -- Diptera -- which means they have two wings. the halteres are balancing components of the flying structure that beat opposite the way the wings beat and provide balance in flight
- Bugscope Team this is the cranefly's head, of course; they look like super large mosquitoes
- Bugscope Team but they are kind of slow and don't bite
- Bugscope Team aa adults they are said to feed on nectar
- Bugscope Team as adults..
- Student Do I have control? Michele?
- Bugscope Team now you do
- Bugscope Team CSU had it
- Guest what do they feed on before they're adults?
- Bugscope Team roots 'and other vegetation'
- Bugscope Team the larvae are said to be called leatherjackets. I have never seen them to my knowledge
- Bugscope Team they eat grass roots, for example
- Bugscope Team this is the compound eye
- Bugscope Team one of them
- Bugscope Team the facets are called ommatidia
- Bugscope Team probably a few thousand ommatidia per eye
- Guest how are they able to see? I'm guessing they don't see like us (using pupils and etc.)
Bugscope Team each ommatidium is an individual lens; they are kind of like our eyes, but they're not as good individually
- Bugscope Team with compound eyes you have better peripheral vision and also get faster updates from the visual field
- Guest how many ommatidium do they have? per "eye"?
Bugscope Team a few thousand, here; some large wasps can have 30,000 ommatidia per eye
- Bugscope Team flying insects also have, often, simple eyes called ocelli on the top of the head, usually three
- Student We wan tot be on teh yellow jacket head.....darn it!!
- Bugscope Team the ocelli are more rudimentary but give good info about orientation
- Student Michele...control...please
Bugscope Team I cannot get to the yellowjacket head either; just a sec
- Guest Are those teeth?
Bugscope Team no they protect the tongue
- Bugscope Team above the things that look like teeth are the mandibles, which open left and right like a gate
- Student So what are they exactly?
Bugscope Team really do not know their function
- Guest are the body hairs all used as feelers?
Bugscope Team they are almost all receptors of some sort, so yes
- Student Looks like an evil rabbit
Bugscope Team yes it does!
- Guest Are we looking at the bellyside of the yellowjacket?
Bugscope Team yes this is the ventral side, where the legs are
- Bugscope Team the hairs are called setae, and they are mechanosensory, chemosensory, thermosensory; some are used for proprioception
- Guest Is that an antenna coming out of its mouth area? or is it curling into its mouth?
Bugscope Team there are both antennae, which come from about where we might expect to see eyes, and there are palps, which come from the mouth\
- Guest Proprioception?
Bugscope Team self-sensing
- Guest What are those small particles? Looks like pollen...
Bugscope Team one of those we see now is a scale from a butterfly or moth
- Bugscope Team some of the bristles that stick out of limbs bend when the limbs are moved and thus let the insect know that the limb has moved
- Bugscope Team the poor imaging is due to electrons not shedding from the sample quickly
- Bugscope Team the specimens are all coated with gold-palladium to make them conductive, but insects are difficult to coat well
- Student is this ant missing its gaster?
Bugscope Team exactically
Bugscope Team don't know how that happened!
- Bugscope Team ants communicate mostly through chemical signals
- Bugscope Team almost all ants we see are females
- Bugscope Team when we see winged ants, if they are not the queen, they're males
- Bugscope Team ball and socket fit of the antenna to the head
- Bugscope Team those super tiny setae are likely for proprioception
- Guest what is an ant's leg length in porpotion to it's body length? the legs seem quite long
Bugscope Team they differ according to species; for example those of leafcutter ants are quite long
- Bugscope Team spiders have an autotomy function whereby they can jettison a leg once they sense venom coming into it
- Student What is a cephalothorax?
Bugscope Team cephalo means head and thorax is the trunk region; in a spider they are fused into one piece
- Bugscope Team um this spider has, like, totally no legs
- Student How much time do we have left in our session?
Bugscope Team 3 hours 26 minutes
- Bugscope Team I think we're good for 35 minutes before someone else shows up
- Guest so the best way to poison the spider is an injection directly into the belly?
Bugscope Team yes!
- Student What are thos "bumpy" parts?
Bugscope Team the eyes
- Bugscope Team some spiders have what are called 'urticating hairs' that they can actually shoot at you
- Bugscope Team stinger
- Bugscope Team see the serrations?
- Guest is a bee's stinger ticklish?
Bugscope Team no I don't think so; you can see it slides, side by side, to cut into you
- Bugscope Team stingers are modified ovipositors, so they are found only on females
- Student Is that a part of its wing there that I see right now?
Bugscope Team that is part of someone else's wing -- a butterfly or moth
- Guest ovipositors = egg laying thing?
Bugscope Team yes!
- Student How is someone else's wing by its stinger?
Bugscope Team what we see, I think, is a loose scale from a moth wing
- Guest if the bee were alive, would it "clean" itself to remove the moth scale?
Bugscope Team yes it would
- Student Why are there so many hairs on the bee? I am wondering why
Bugscope Team part of that is thermoregulation
- Student Are the holes hiding places for other insects?
Bugscope Team this is a piece of bark, so we are looking at cells
- Bugscope Team Cate thought you'd sent us some redwood bark.
- Student This will be our last specimen
- Student Scot, could you show us some detail in the moth scale?
- Bugscope Team this is a moth, of course, covered with scales, which among other things protect insects that have them from getting caught in spider webs
- Guest the moth looks like it has tiny feathers
Bugscope Team those are the scales; I think one of their functions is much like that of feathers
- Bugscope Team sorry hard to find ones that do not charge up with electrons
- Guest is this the same type of moth that makes holes develop in clothing?
- Bugscope Team the larvae do that; I think this is one of them.
- Bugscope Team a palm frond in an old master's painting indicates martyrdom
- Guest what does an ant's eyes look like?
Bugscope Team we saw them earlier; they are generally not as complex and have way fewer ommatidia
- Guest Thanks!!!!!
- Bugscope Team Thank you, Mike.
- Bugscope Team substructure of the eye to the upper left
- Bugscope Team like tiny rods or cones
- Student Ok Scot - we are going to log off. Thanks for the great time and working things out tonight! I / we appreciate it very much!
- Bugscope Team Thank you, everyone, for logging in this evening.