"Directorate of plant protection" .
1960 - "The Desert Locust in India" monograph by Y.R. Rao.
1969 - "The monograph on Indian Thysanoptera" by Dr. T.N. Ananthakrishnan
Insect Morphology and Systematics
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1.
More number of species: In the animal kingdom more than 85 per cent of the species
belongs to insect group. Total number of insects described so far is more than 9 lakhs.
2.
Large number of individuals in a single species:
e.g., Locust swarm comprising of 10
9
number of individuals, occupying large area.
3.