This identification guide focuses on the association between the flies and the flowers of the trees, shrubs, herbs, gardens, and medicinal plants. The very reason of structuring this handbook is that the beginner will be able to relate the flowers and the insects together as an integral part of a given ecosystem and biodiversity strategies.
The diptera are probably the second most common order of flower - visitors and pollinators worldwide and may rival even the hymenopterans in their diversity especially in tropical countries. Today flies are being considered seriously as alternative pollinating agents of several cash crops and play a major role in maintenance of ecosystem diversity and ensuring food security.