There are some 450 species in North America and almost 300 in Costa Rica, some of which are shared. Since I have visited both the States and more recently Costa Rica just once each looking for odonata, the North American trip being very late in their season and mainly a tourist trip, I have decided just to list those that I have seen.
Zygoptera (Damselflies)
- Argia medullaris (Sky-blue Dancer)
- Argia oenea (Fiery-eyed Dancer)
- Enallagma civile (Familiar Bluet)
- Hetaerina titia (Smoky Rubyspot)
- Ischnura posita (Fragile Forktail)
- Ischnura verticalis (Eastern Forktail)
- Mecistogaster modesta (Bromeliad Helicopter)
Anisoptera (Dragonflies)
- Brechmorhoga pertinax (Masked Clubskimmer)
- Brechmorhoga praecox (Slender Clubskimmer)
- Brechmorhoga rapax (Amber-banded Clubskimmer)
- Brechmorhoga vivax (Vivacious Clubskimmer)
- Epigomphus subobtusus (Common Knobtail)
- Erythemis simplicicollis (Eastern Pondhawk)
- Erythemis vesiculosa (Great Pondhawk)
- Macrothemis pseudimitans (White-tailed Sylph)
- Orthemis discolor (Carmine Skimmer)
- Orthemis ferruginea (Roseate Skimmer)
- Pachydiplax longipennis (Blue Dasher)
- Pantala flavescens (Wandering Glider)
- Remartinia luteipennis (Malachite Darner)
- Rhionaeschna psilus (Turquoise-tipped Darner)
- Sympetrum illotum (Cardinal Meadowhawk)
- Zenithoptera fasciata (Amazon Sapphirewing)