Presentation on theme: "Welcome to “Bug” Week Test scores, not terrible Snack Bar reminder Bug Day is Friday! Use the laptops to get vocabulary and chart done Lab (sketches) and."— Presentation transcript:
Welcome to “Bug” Week Test scores, not terrible Snack Bar reminder Bug Day is Friday! Use the laptops to get vocabulary and chart done Lab (sketches) and Video coming up www.cirrusimage.com
Insect Collection - Tuesday 1. Grasshopper, cricket, roach, mantis 2. true bug 3. cicadas or leaf or plant hopper 4. beetle 5. fly 6. ant, bee or wasp 7. butterfly or moth 8. dragonfly, lacewing, termite, flea, silverfish 9. spider 10. isopod, or centipede or millipede
General Insect Characteristics 3 body parts, head, thorax, abdomen 6 legs, usually 2 pr. Wings - all from thorax Exoskeleton of chitin Breathe by spiracles/tracheae Wide variety of mouthparts Complete or incomplete metamorphosis Estimates as high as 30 million species
Beetles - Coleoptera Wings - 1st pr. modified into elytra Allow beetles to go places other insects can’t Mouthparts - chewing Metamorphosis - complete - larva often called a grub Other - largest order Weevils, scarabs, mealworms, etc.
Ants & Bees - Hymenoptera Wings - 2 pr. Linked, membrane winged Mouthparts - Chewing Metamorphosis - Complete Other - Social, solitary or parasites, 3rd largest Narrow constriction between thorax and abdomen Ovipositor modified into sting
Flies - Diptera Wings - only 1 pr. 2nd pr - halteres, for balance Mouthparts - lapping or biting Metamorphosis - complete, larva are maggots or wigglers (mosquitos) Other - disease carriers; 4th largest Gnats, midges, punkies
Dragonflies - Odonata Wings - 2 pair Mouthparts - chewing Metamorphosis - Incomplete, aquatic nymphs, rectal gills, jet propulsion Other – predators, even as nymphs Damselflies can fold wings against body, narrow abdomen Legs form a basket underneath Fossil dragonflies wingspan, 2 ½ feet.
Termites - Isoptera Wings - 2 pr. Straight if present Mouthparts - chewing Metamorphosis - Incomplete Other - All social, flagellates are symbiotic Castes include soldiers; 5,000,000 in a colony; huge part of tropical ecosystems; queen might live 50 years