RES Handbook Vol 1 Part 10. Odonata

THE ODONATA or Dragonflies are insects familiar to everyone, and, if we except a few of the larger Neuroptera or Lacewings, there are few insects in this country with which they may be confused. They may be described as large or medium-sized four-winged insects, aerial in habit and amphibious by nature since, apart from the short imaginal stage, they spend the greater part of their lives in water; they are predacious on other insects which they capture when on the wing. The sexes are of the same size, but frequently differ in colour and markings, and although the newly emerged or "teneral" male often resembles the female, this resemblance is lost after a few days on the wing.
Lt-Col. F. C. Fraser, I M S
Available as: 
res handbooks out of print dragonflies damselflies