Thomas Horsfield was an American physician and naturalist who worked extensively in Indonesia, describing numerous species of plants and animals from the region. He was later a curator of the East India Company Museum in London.
Oak leaf or Oakleaf may refer to:
Kallima inachus, the orange oakleaf, Indian oakleaf or dead leaf, is a nymphalid butterfly found in Tropical Asia from India to Japan. With wings closed, it closely resembles a dry leaf with dark veins and is a commonly cited example of camouflage.
Kallima horsfieldii, the blue oakleaf, southern blue oakleaf or Sahyadri blue oakleaf, is a nymphalid butterfly found in India. The underside appears like a leaf complete with midrib while the upperside is brilliantly coloured.
Agrias is a genus of Neotropical charaxine nymphalid butterflies found in South and Central America.
Kallima philarchus, the Ceylon blue oakleaf, is a nymphalid butterfly found in Sri Lanka. With wings closed, it closely resembles a dry leaf with dark veins and is a spectacular example of camouflage.
Kallima knyvetti, the scarce blue oakleaf, is a species of leaf mimic butterfly found in Southeast Asia.
Kallima albofasciata, the Andaman oakleaf, is a species of oak leaf butterfly found in the Andaman Islands.
Aulocera is a genus in the subfamily Satyrinae of the brush-footed butterfly family, Nymphalidae. Commonly referred to as banded satyrs, species of the genus Aulocera are endemic to the Himalayas and associated mountain ranges.
Mallika is a monotypic genus of butterflies of the subfamily Nymphalinae in the family Nymphalidae found in central Africa from DR Congo to Kenya. The single species is Mallika jacksoni, or Jackson's leaf butterfly, which traditionally has been included in the genus Kallima. The habitat consists of dry, sparsely wooded hillsides.
Kallima paralekta, the Indian leafwing or Malayan leafwing, is a species of brush-footed butterfly of the genus Kallima. Despite its common names, it is not found in India or Malaysia, but is endemic to Java and Sumatra of Indonesia. Like other members of its genus, it is remarkable for its strong resemblance to a dead leaf when its wings are folded. It was one of the species encountered by the British naturalist Alfred Russel Wallace in his travels in maritime Southeast Asia. It is mentioned in his famous 19th-century work The Malay Archipelago as one of the best examples of protective camouflage achieved through natural selection.
