Decided to go for:
Giant Damselfly 6 feet long, 6 to 8 foot wingspan, weight 50 pounds;
Variant: Small Giant Dragonfly 4 to 4½ foot long, 7 foot wingspan.
Giant Dragonfly 7 to 8 feet long, 10 to 12 foot wingspan, weight 250 pounds;
Variant: Big Giant Damselfly 10 foot long, 10 to 14 foot...