The Low-Country Dry Zone:

The low-country dry zone occupies about three-quarters of the country. It receives between 25-75 inches of rain, most of which falls towards the end of the year. Elevation ranges from sea level to 500 feet above sea level. It is hot and dry for most of the year. Rice is cultivated extensively under irrigation from man-made water reservoirs that are called tanks. Vegetables are also cultivated in this zone after the monsoonal rains. It does have some tracts of forest and scrub jungle, though vastly reduced from its former size due to new settlements. Most of the butterflies found in this zone are similar to those in South India.