Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina} silhouette at sunrise, Welder Wildlife Refuge, Sinton, Texas, USA.

Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina}pair mating, Welder Wildlife Refuge, Sinton, Texas, USA.

John Abbott / Halloween pennant dragonfly (Celithemis eponina) male at rest, Martin Dies Jr. State Park, Texas, USA, June

LYNN M. STONE / Halloween pennant dragonfly (Celithemis eponina) resting on leaf in early morning dew, North Guilford, Connecticut, USA, August

LYNN M. STONE / Female Halloween pennant dragonfly (Celithemis eponina) resting on leaf, North Guilford, Connecticut, USA, July

LYNN M. STONE / Female Halloween pennant dragonfly (Celithemis eponina) on bud, Haddam, Connecticut, USA, July

LYNN M. STONE / Female Halloween pennant dragonfly (Celithemis eponina) on bud, Haddam, Connecticut, USA, July

John Abbott / Double-ringed pennant dragonfly (Celithemis verna) male at rest, Angelina National Forest, Texas, USA, June

David Welling / Ornate Pennant Dragonfly (Celithemis ornata) female perching. Jasper County, Texas, USA.

LYNN M. STONE / Calico Pennant Dragonfly (Celithemis elisa) perched on a reed spike in prairie fen, male, Illinois, USA

LYNN M. STONE / Calico Pennant Dragonfly (Celithemis elisa) perched on a dried weed stem in prairie fen, male, Illinois, USA

Larry Michael / Calico pennant dragonfly (Celithemis elisa) in morning dew, USA

Larry Michael / Calico pennant dragonfly (Celithemis elisa) USA

Steven David Miller / Haloween pennant dragonfly (Celithemis eponina) Everglades NP, Florida, USA

Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina} male profile, Welder Wildlife Refuge, Sinton, Texas, USA.

Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina} female on blade of grass, Welder Wildlife Refuge, Sinton, Texas, USA.