Taxonomy :
phylum : Arthropoda
class : Insecta
order : Odonata
family : Anisoptera

Life History :
egg -- > nymph -- > adult

Habitat :
permanent - running or still waters.

Feeding Patterns:
Nymphs - carnivores, feeding on insect larvae, shrimp, and even small fish

Notes :
- do not tolerate pollution.

Description :
Nymph - stouter body than damselflies; no conspicuous caudal gills; 3 to 5 spine-like or triangular processes on tip of abdomen