This section is from the book "British Wild Flowers - In Their Natural Haunts Vol2-4", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
As has been pointed out, the meadow is the home, as it were, of insect life, and this has a great significance, for by the agency of insects the plants of the meadows are better able to cope with the adverse conditions of existence. For without the advantage of cross-pollination the seeds are not so likely to be fertile.
The brilliance of the meadow flowers and the number of flowers of the same kind make the meadow especially suited to insect life. It is an interesting and engaging occupation to watch the wanderings of any particular insect from one flower to the next, and by practice and study the exact name of the individual insects may be learnt. The experiments of Lord Avebury may be repeated for every type of insect and a study made as to which colours most attract each insect; whether insects fly from plants having a certain coloured flower to flowers of a different colour, and the order of these; and the preference for any particular colour may be noted.
The absence of night-flowering plants and nocturnal butterflies or moths (which are more often found in woods) may be noticed.