She was extremely perky and was ready to fly quite quickly.
At this time of year our temperatures are warm and so the butterflies dry and are ready to fly in a shorter time, compared to later in the season when our temperatures are cooling.
Scent scales are modified wing scales on the forewing of male butterflies and moths (on the costal fold) that release pheromones. These chemicals attract females of the same species. Scent scales are also called androconia.
REF: Enchanted Learning.com