Leptophlebia Vespertina
if you’re in an playful mood you could always try saying that three times in a row as fast as you can !

pretty well distributed around the world, the Leptophlebiidae order of the Mayfly family comprised of 134 Genera (types) and 623 Species (groups) is not only a groovy bug to look at…
but imitations of these in the various forms of the bug’s development are fun to make and well worth having in the fly box.

[...] important than the imitation or it’s fish catching capabilities, being able to pronounce this tongue-twisting bug’s name makes anyone cooler than cool and a highest of highly respected angler, the kind [...]