How long do Dragonflies get their adult
When dragonflies and damselflies first emerge from their water-borne larval
stage, most have very muted colors. Depending on weather conditions, it can
take a few to a few days for them to gain their bright adult color.
A male Ischnura senegalensis (Rambur, 1842)
takes only 2 hours to transform from pale greenish to its bright
green-black-blue adult color.
damselflies are often a pale pinkish-brown rather than sky-blue on first
emergence. Some damselflies, Blue-tailed are a good example, undergo a gradual
color change as they age. The females have several different color forms, some
change from violet to rich brown, others from salmon-pink to blue. Some old females may start to
develop the coloration of the males. Examples are Common Darter, which goes
from yellow-brown to reddish brown, and Black-tailed Skimmer, which goes from
yellow-brown to a bluish-grey.