Schizura unicornis
Encyclopedia
The Unicorn Caterpillar Moth, Unicorn Prominent or Variegated Prominent (Schizura unicornis) is a species of moth
of the Notodontidae
family. It is found in all of North America
, except the arctic north.
The wingspan
is 24-35 mm. The forewings are dark grey, variably shaded and marked with yellowish, rose and brown. The hindwings are dirty white, shaded with grey in males and dark grey in females. Adults are on wing from February to September in the south and from May to August in the north. There is one generation per year.
The larvae feed on Alnus, Malus
, Populus tremuloides
, Betula papyrifera, Ulmus, Crataegus
, Carya and Salix species. They are brown, although the second and third thoracic segments are bright green. The head is mottled brown. Larvae can be found from May to October in the south and from June to September in the north. The species overwinters in the larval stage in a cocoon beneath leaf litter.
Moth
A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...
of the Notodontidae
Notodontidae
Notodontidae is a family of moths with approximately 3,500 known species. Moths of this family are found in all parts of the world, but they are most concentrated in tropical areas, especially in the New World...
family. It is found in all of North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
, except the arctic north.
The wingspan
Wingspan
The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...
is 24-35 mm. The forewings are dark grey, variably shaded and marked with yellowish, rose and brown. The hindwings are dirty white, shaded with grey in males and dark grey in females. Adults are on wing from February to September in the south and from May to August in the north. There is one generation per year.
The larvae feed on Alnus, Malus
Malus
Malus , the apples, are a genus of about 30–35 species of small deciduous trees or shrubs in the family Rosaceae. Other studies go as far as 55 species including the domesticated Orchard Apple, or Table apple as it was formerly called...
, Populus tremuloides
Populus tremuloides
Populus tremuloides is a deciduous tree native to cooler areas of North America, commonly called quaking aspen, trembling aspen, American aspen, and Quakies,. The trees have tall trunks, up to 25 metres, with smooth pale bark, scarred with black. The glossy green leaves, dull beneath, become golden...
, Betula papyrifera, Ulmus, Crataegus
Crataegus
Crataegus , commonly called hawthorn or thornapple, is a large genus of shrubs and trees in the rose family, Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia and North America. The name hawthorn was originally applied to the species native to northern Europe,...
, Carya and Salix species. They are brown, although the second and third thoracic segments are bright green. The head is mottled brown. Larvae can be found from May to October in the south and from June to September in the north. The species overwinters in the larval stage in a cocoon beneath leaf litter.