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

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.