Paleacrita Vernata
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''Paleacrita vernata'', the spring cankerworm, is a
moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...
of the
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Geometridae The geometer moths are moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyleti ...
. The species was first described by
William Dandridge Peck William Dandridge Peck (May 8, 1763 – October 8, 1822) was an American naturalist, the first native-born entomologist and a pioneer in the field of economic entomology. In 1806 he became the first professor of natural history at Harvard, a pos ...
in 1795. It is found in North America from the
Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
west to
Alberta Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...
,
Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
and
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
. The length of the forewings is 11–18 mm for males. The females are wingless. Adult males are on wing from February to late May. The larvae feed on various deciduous trees and shrubs, but especially '' Acer'', ''
Ulmus Elms are deciduous and semi-deciduous trees comprising the genus ''Ulmus'' in the family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical- montane regions of North America and Eurasia, ...
'', ''
Betula A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech- oak family Fagaceae. The genus ''Betula'' contains 3 ...
'' and ''
Prunus ''Prunus'' is a genus of flowering plant, flowering trees and shrubs from the family (biology), family Rosaceae. The genus includes plums, cherries, peaches, nectarines, apricots and almonds (collectively Drupe, stonefruit). The genus has a cosm ...
'' species. Oaks (''Quercus'') are also affected, and many homeowners place sticky bands around trunks of their trees to trap the migrating adults as they climb the tree to lay eggs. The eggs hatch, turning into numerous inch-long worms that can defoliate and kill a tree. The worms often fall from the canopy onto passersby. Usually they are suspended by a line of silk that they can climb back into the tree along, should a spring wind dislodge them from their meal of leaves.


Etymology

The specific name is derived from
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
''vernus'', "spring (attributive)".


References


External links

* * Taxa named by William Dandridge Peck Moths described in 1795 Bistonini {{Bistonini-stub