Frederick County, Maryland, United States

Aeshna tuberculifera (Black-tipped Darner)
Aeshna umbrosa (Shadow Darner)
Amphiagrion saucium (Eastern Red Damsel)
Anax junius (Common Green Darner)
Anax longipes (Comet 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)
Basiaeschna janata (Springtime Darner)
Boyeria vinosa (Fawn Darner)
Calopteryx maculata (Ebony Jewelwing)
Celithemis elisa (Calico Pennant)
Celithemis eponina (Halloween Pennant)
Celithemis fasciata (Banded Pennant)
Celithemis martha (Martha's Pennant)
Celithemis verna (Double-ringed Pennant)
Chromagrion conditum (Aurora Damsel)
Cordulegaster bilineata (Brown Spiketail)
Cordulegaster erronea (Tiger Spiketail)
Cordulegaster maculata (Twin-spotted Spiketail)
Cordulia shurtleffii (American Emerald)
Didymops transversa (Stream Cruiser)
Dromogomphus spinosus (Black-shouldered Spinyleg)
Enallagma aspersum (Azure Bluet)
Enallagma basidens (Double-striped Bluet)
Enallagma civile (Familiar Bluet)
Enallagma divagans (Turquoise Bluet)
Enallagma durum (Big 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)
Epitheca spinosa (Robust Baskettail)
Erpetogomphus designatus (Eastern Ringtail)
Erythemis simplicicollis (Eastern Pondhawk)
Erythrodiplax minuscula (Little Blue Dragonlet)
Gomphaeschna furcillata (Harlequin Darner)
Gomphurus fraternus (Midland Clubtail)
Gomphurus lineatifrons (Splendid Clubtail)
Gomphurus vastus (Cobra Clubtail)
Hagenius brevistylus (Dragonhunter)
Hetaerina americana (American Rubyspot)
Hylogomphus abbreviatus (Spine-crowned Clubtail)
Hylogomphus viridifrons (Green-faced Clubtail)
Ischnura hastata (Citrine Forktail)
Ischnura posita (Fragile Forktail)
Ischnura ramburii (Rambur's Forktail)
Ischnura verticalis (Eastern Forktail)
Ladona deplanata (Blue Corporal)
Ladona julia (Chalk-fronted Corporal)
Lanthus vernalis (Southern Pygmy Clubtail)
Lestes australis (Southern Spreadwing)
Lestes eurinus (Amber-winged Spreadwing)
Lestes forcipatus (Sweetflag Spreadwing)
Lestes rectangularis (Slender Spreadwing)
Lestes vigilax (Swamp Spreadwing)
Leucorrhinia frigida (Frosted Whiteface)
Libellula auripennis (Golden-winged Skimmer)
Libellula axilena (Bar-winged Skimmer)
Libellula cyanea (Spangled Skimmer)
Libellula incesta (Slaty Skimmer)
Libellula luctuosa (Widow Skimmer)
Libellula needhami (Needham's Skimmer)
Libellula pulchella (Twelve-spotted Skimmer)
Libellula semifasciata (Painted Skimmer)
Libellula vibrans (Great Blue Skimmer)
Macromia alleghaniensis (Allegheny River Cruiser)
Macromia illinoiensis (Swift River Cruiser)
Nasiaeschna pentacantha (Cyrano Darner)
Neurocordulia obsoleta (Umber Shadowdragon)
Neurocordulia yamaskanensis (Stygian Shadowdragon)
Pachydiplax longipennis (Blue Dasher)
Pantala flavescens (Wandering Glider)
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)
Somatochlora linearis (Mocha Emerald)
Stylogomphus albistylus (Eastern Least Clubtail)
Stylurus laurae (Laura's Clubtail)
Stylurus notatus (Elusive Clubtail)
Stylurus plagiatus (Russet-tipped Clubtail)
Stylurus spiniceps (Arrow Clubtail)
Sympetrum internum (Cherry-faced Meadowhawk)
Sympetrum rubicundulum (Ruby Meadowhawk)
Sympetrum semicinctum (Band-winged Meadowhawk)
Sympetrum vicinum (Autumn Meadowhawk)
Tachopteryx thoreyi (Gray Petaltail)
Tramea carolina (Carolina Saddlebags)
Tramea lacerata (Black Saddlebags)

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