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17 Cards in this Set
- Front
- Back
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Podites |
Primitive thoracic appendages |
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Coxa (coxae plural) |
First of six serially arranged segments; short, socket-like structure, attached by a tough elastic membrane |
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Trochanter |
Second segment; subtriangular, shorter than coxa, partially fused to third segment |
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Femur (femora plural) |
Third, largest segment |
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Tibia (tibiae plural) |
Fourth segment; more slender than femur, but almost equal in length |
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Tibial spurs |
Spine-like |
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Tarsus |
Single segment made up of subdivisions |
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Tarsomeres/tarsal segments |
Subdivisions of tarsus; number varies from group of insects to group; never more than five |
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Pretarsus |
Terminal tarsal segment |
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Tarsal claws |
On pretarsus |
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Ambulatorial (walking) leg |
generalized type of insect leg |
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Cursorial (running) leg |
typified by elongate, relatively slender segments; ex) cockroach, tiger beetle |
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Saltatorial (jumping) leg |
a specialization usually limited to the metathoracic legs; enlarged femora; ex) grasshopper, cricket, flea |
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Raptorial (grasping) leg |
specializations usually limited to the prothoracic legs; swollen femora and/or development of rows of prominent spines between femora and tibiae; ex) praying mantis, giant water bug, ambush bug |
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Fossorial (digging) leg |
characterized by flattened, spatulate form; ex) mole cricket, cicada nymph |
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Natatorial (swimming) leg |
usually involves the development of clusters of elongate "swimming setae" which add surface area; ex) backswimmers, water boatman, diving beetle |
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Pollen carrying leg |
characterized by enlarged size, development of numerous simple and/or branched setae; ex) honey bee, bumble bee, some flower beetles |
