BIOL11300 Lecture Notes - Lecture 5: Hexapoda, Protura, Springtail
18 Mar 2016
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Protura: first tail tiny, pale, no eyes, no anternnae, no wings found in soil. Collophore: on underside of abdomen that regulates water uptake and excretion. Furcula: hook type thing used for long distance movement. Live in soil, mostly decomposers, few are predators. Ametabulous metamorphosis only get bigger as they grow: molt as an adult. Super ancient: they are able to remain active at low temperatures. No thorais structures necessary for ancestors to have wings: never had wings. Microcoryphia: small head (bristletails) found in grass or woods long antennae long maxillary palps (external mouthparts) large compound eyes that meet at top of head. Eat lichen, algae, and other rotting plant material. Ancient jaw with single point of attachment. Oldest exstant insect jump by arching thorax not with legs cursorial legs indirect sperm transfer. Thysanura: fringe tail long flattened body long thin antennae similar to bristletails live with people pretty well.
