Washington County, Maryland, United States

Aeshna tuberculifera (Black-tipped Darner)
Aeshna umbrosa (Shadow Darner)
Aeshna verticalis (Green-striped Darner)
Anax junius (Common Green Darner)
Argia apicalis (Blue-fronted Dancer)
Argia fumipennis (Variable Dancer)
Argia moesta (Powdered Dancer)
Argia sedula (Blue-ringed Dancer)
Argia tibialis (Blue-tipped Dancer)
Argia translata (Dusky Dancer)
Arigomphus villosipes (Unicorn Clubtail)
Basiaeschna janata (Springtime Darner)
Boyeria grafiana (Ocellated Darner)
Boyeria vinosa (Fawn Darner)
Calopteryx angustipennis (Appalachian Jewelwing)
Calopteryx maculata (Ebony Jewelwing)
Celithemis elisa (Calico Pennant)
Cordulegaster bilineata (Brown Spiketail)
Cordulegaster maculata (Twin-spotted Spiketail)
Cordulegaster obliqua (Arrowhead Spiketail)
Didymops transversa (Stream Cruiser)
Dromogomphus spinosus (Black-shouldered Spinyleg)
Enallagma aspersum (Azure Bluet)
Enallagma basidens (Double-striped Bluet)
Enallagma civile (Familiar Bluet)
Enallagma exsulans (Stream Bluet)
Enallagma geminatum (Skimming Bluet)
Enallagma signatum (Orange Bluet)
Enallagma traviatum (Slender Bluet)
Epiaeschna heros (Swamp Darner)
Epitheca cynosura (Common Baskettail)
Epitheca princeps (Prince Baskettail)
Erythemis simplicicollis (Eastern Pondhawk)
Gomphaeschna furcillata (Harlequin Darner)
Gomphurus fraternus (Midland Clubtail)
Gomphurus lineatifrons (Splendid Clubtail)
Gomphurus vastus (Cobra Clubtail)
Hagenius brevistylus (Dragonhunter)
Helocordulia uhleri (Uhler's Sundragon)
Hetaerina americana (American Rubyspot)
Hylogomphus abbreviatus (Spine-crowned Clubtail)
Hylogomphus viridifrons (Green-faced Clubtail)
Ischnura posita (Fragile Forktail)
Ischnura verticalis (Eastern Forktail)
Ladona deplanata (Blue Corporal)
Libellula axilena (Bar-winged Skimmer)
Libellula cyanea (Spangled Skimmer)
Libellula incesta (Slaty Skimmer)
Libellula luctuosa (Widow Skimmer)
Libellula pulchella (Twelve-spotted Skimmer)
Macromia alleghaniensis (Allegheny River Cruiser)
Macromia illinoiensis (Swift River Cruiser)
Nasiaeschna pentacantha (Cyrano Darner)
Neurocordulia obsoleta (Umber Shadowdragon)
Neurocordulia yamaskanensis (Stygian Shadowdragon)
Ophiogomphus rupinsulensis (Rusty Snaketail)
Pachydiplax longipennis (Blue Dasher)
Pantala hymenaea (Spot-winged Glider)
Perithemis tenera (Eastern Amberwing)
Phanogomphus exilis (Lancet Clubtail)
Phanogomphus lividus (Ashy Clubtail)
Phanogomphus quadricolor (Rapids Clubtail)
Plathemis lydia (Common Whitetail)
Rhionaeschna mutata (Spatterdock Darner)
Somatochlora linearis (Mocha Emerald)
Somatochlora tenebrosa (Clamp-tipped Emerald)
Stylogomphus albistylus (Eastern Least Clubtail)
Stylurus laurae (Laura's Clubtail)
Stylurus spiniceps (Arrow Clubtail)
Sympetrum rubicundulum (Ruby Meadowhawk)
Sympetrum semicinctum (Band-winged Meadowhawk)
Sympetrum vicinum (Autumn Meadowhawk)

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