| | Cross Timbers Master Naturalist - Current Features |
 | | But when it's time to explore a new area for food or mates, they emulate the glider and in so doing assuredly save energy and fuel. |
 | | Swallowtails are often referred to as "the true swallowtails" (subfamily Papilioninae) and, along with Parnassians (light or pale colored species seen in the northern and western United States and Canada), form the North American branch of the family Papilionidae. |
 | | Except for the tailless Polydamas Swallowtail, which normally flies only as far north as the Rio Grande Valley, all true North American Swallowtails do indeed have tails. |
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