Melanitis leda
Encyclopedia
Melanitis leda, the Common Evening Brown, is a common species of butterfly found flying at dusk. The flight of this species is erratic. They are found in Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, South Asia
South Asia
South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 and South-east Asia extending to parts of Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

.

Description

See glossary
Glossary of Lepidopteran terms
This glossary describes the terms used in the formal descriptions of insect species, jargon used mostly by professionals or entomologist....

 for terms used

Wet-season form: Fore wing: apex subacute; termen slightly angulated just below apex, or straight. Upperside brown. Fore wing with two large subapical black spots, each with a smaller spot outwardly of pure white inwardly bordered by a ferruginous interrupted lunule; costal margin narrowly pale. Hind wing with a dark, white-centred, fulvous-ringed ocellus subterminally in interspace 2, and the apical ocellus
Eyespot (mimicry)
An eyespot is an eye-like marking. They are found on butterflies, reptiles, birds and fish. In members of the Felidae family , the white circular markings on the backs of the ears are termed ocelli, and they are functionally similar to eyespots in other animals.Eyespots may be a form of...

, sometimes also others of the ocelli,on the underside, showing through.

Underside paler, densely covered with transverse dark brown striae ; a discal curved dark brown narrow band on fore wing; a post-discal similar oblique band, followed by a series of ocelli: four on the fore wing, that in interspace 8 the largest; six on the hind wing, the apical and subtornal the largest.

Dry-season form: Fore wing : apex obtuse and more or less falcate; termen posterior to falcation straight or sinuous. Upperside: ground-colour similar to that in the wet-season form, the markings, especially the ferruginous lunules inwardly bordering the black sub-apical spots on fore wing, larger, more extended below and above the black costa. Hind wing : the ocellus in interspace 2 absent, posteriorly replaced by three or four minute white subterminal spots.

Underside varies in colour greatly. Antennae, head, thorax and abdomen in both seasonal forms brown or greyish brown: the antennae annulated with white, ochraceous at apex.

Ecology

Colonel C. T. Bingham
Charles Thomas Bingham
Charles Thomas Bingham was an Irish military officer and entomologist.Bingham’s military career began in India where he was a soldier in the Bombay Staff Corps and later with the Bengal Staff Corps...

 wrote of the genus in 1878:

The Melanitis was there among dead leaves, its wings folded and looking for all the world a dead, dry leaf itself. With regard to Melanitis, I have not seen it recorded anywhere that the species of this genus when disturbed fly a little way, drop suddenly into the undergrowth with closed wings, and invariably lie a little askew and slanting, which still more increases their likeness to a dead leaf casually fallen to the ground.


Resident butterflies are known to fight off visitors to the area during dusk hours. This chase behaviour is elicited even by pebbles thrown nearby.

The caterpillar
Caterpillar
Caterpillars are the larval form of members of the order Lepidoptera . They are mostly herbivorous in food habit, although some species are insectivorous. Caterpillars are voracious feeders and many of them are considered to be pests in agriculture...

s feed on a wide variety of grass
Grass
Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...

es including rice (Oryza sativa
Oryza sativa
Oryza sativa, commonly known as Asian rice, is the plant species most commonly referred to in English as rice. Oryza sativa is the cereal with the smallest genome, consisting of just 430Mb across 12 chromosomes...

), bamboo
Bamboo
Bamboo is a group of perennial evergreens in the true grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae. Giant bamboos are the largest members of the grass family....

s, Andropogon
Andropogon
Andropogon is a genus of grasses. Andropogon gerardii, big bluestem, is the official state grass of Illinois.Broomsedge is found along the eastern United States...

, Rotboellia cochinchinensis, Brachiaria mutica, Cynodon
Cynodon
Cynodon is a genus of nine species of grasses, native to warm temperate to tropical regions of the Old World. The genus as a whole as well as its species are commonly known as Bermuda Grass or Dog's Tooth Grass.-Species:...

, Imperata
Imperata
Imperata is a small genus of grasses known as satintails. Satintail grass species are perennial rhizomatous grasses native to the tropics and warm temperate regions worldwide. They bear solid, erect stems and silky inflorescences...

, and millets such as Oplismenus compositus, Panicum
Panicum
Panicum is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone...

and Eleusine indica
Eleusine indica
Eleusine indica is an invasive species in the grass family Poaceae. It is a small annual weed distributed throughout the warmer areas of the world to about 50 degrees latitude...

.

Adults feed mainly on nectar, and in rare cases visit rotting fruits.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK