Nymphal

The female trico nymphs ascend to the water’s surface first thing in the morning, shed their nymphal shucks and take to the air as adults.

Biology Ecology Dragonflies and damselflies are predatory both in the aquatic nymphal and adult stages.

These nymphs go through three nymphal instars during a 2–3-week period.

These young mites move about on the skin and molt into a " nymphal " stage, before maturing as adults, which live three to four weeks in the host's skin.

The veins carry haemolymph which is pumped in at the time of emergence from the nymphal stage to expand the wings.