Large, spike-like jaws (mandibles) are easily seen from above; body leathery, some with leg-like gills down the sides...
LEVEL III | Body covered with hard plates, usually somewhat rounded in top view...
COLEOPTERA (Beetles) |
Long, slender, segmented appendages at both ends (may be broken or missing); thorax usually with wingpads...
EPHEMEROPTERA and PLECOPTERA (Mayflies and Stoneflies) | A large hinged and toothed "jaw" (labium) attached to underside of head; thorax usually with wingpads...
ODONATA (Dragonflies and Damselflies) |
Head with a needle-like mouthpart that extends down and back; thorax usually with wings or wingpads, but some are wingless...
HEMIPTERA (True Bugs) | Body soft, white to yellowish, and worm-like, and usually with many fine finger-like gills attached to abdomen; often found inside a case constructed of silk with sand, tiny stones, shredded leaves, or wood...
TRICHOPTERA (Caddisflies) |