General: The order Hymenoptera includes two suborders: the Symphyta and the Apocrita. Hymenopterans are diverse, but are recognized by their two pairs of membranous wings that are connected by a series of hooks (hamuli).
Suborder Apocrita: wasps, bees, and ants. These creatures have a constriction between the first and second abdominal segments (wasp waist), and the larvae are legless and mostly carnivorous.
Suborder Symphyta: sawflies, horntails, and parasitic wood wasps. These creatures have an unconstricted junction between the thorax and abdomen (no wasp-waist), and the larvae are herbivorous and have legs like a caterpillar.
Note: All distances, elevations, and other facts are approximate.
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