Conservation Status
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The migratory grasshopper, as its name implies, congregates into swarms and migrates in search of food. It is a serious agricultural and rangeland pest causing the most damage of all the species of grasshoppers in the States (Pfadt 2002).
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Cyclicity
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Melanoplus sanguinipes nymphs (no wings or short wing buds) hatch from May to June. Adults (wings extend past the abdomen) can be found about 35 to 55 days after the nymphs have hatched (Pfadt 2002). In Alberta they have been collected in July and August (Strickland Museum records).
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Distribution
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This migratory grasshopper ranges from coast to coast across North America, spreading as far north as Alaska and the Canadian territories and as far south as the southern States (based on range map in Pfadt 2002). In has been found in mid-Alberta (Strickland Museum records).
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General Description
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Melanoplus sanguinipes is a medium-sized spurthroated grasshopper with long wings extending well past the abdomen. This and other grasshoppers of the subfamily Melanoplinae often have a spiny bump on their "throat" between their front legs (Johnson 2002). The males of this species can easily be identified by the notch in theirsubgenital plate, the rounded shape of their cerci and the node or bump on theirmesosternum. Adult females are slightly larger than the males but can be associated with them by their similar colour patterns (Pfadt 2002).
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Habitat
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The migratory grasshopper is found in all North American habitats except the far north and Mexico (Pfadt 2002).
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Life Cycle
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The life cycle of Melanoplus sanguinipes is described in Pfadt's Field Guide to Common Western Grasshoppers (2002). Nymphal maturation through the 5 instars is accelerated at high altitudes. The earlier emerging adults have better reproductive success because the eggs have more time to mature in the soil before winter diapause and more favourable moisture conditions. Males are able to recognize an unmated female and perform a short courtship ritual where they wave their antennae and vibrate their femora. About 6 days after mating, the female oviposits her clutch of eggs among the roots of blue grama or other prairie grasses. This may take up to an hour. The egg pods are curved; about 2.5 cm long, and contain 18 to 24 pale yellow or cream coloured eggs. Healthy adults copulate many times and a long-lived female may lay up to 20 egg pods.
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Trophic Strategy
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The migratory grasshopper consumes a mixture of plants that grow in its habitat, but seem to prefer dandelion, tumble mustard, wild mustard, pepperweed, western ragweed, downy brome, Kentucky bluegrass, barley, and wheat (Pfadt 2002).
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Melanoplus sanguinipes
(
англиски
)
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Melanoplus sanguinipes, known generally as migratory grasshopper, is a species of spur-throated grasshopper in the family Acrididae. Other common names include the lesser migratory grasshopper and red-legged grasshopper.[1][2][3][4] It is found in the Caribbean and North America.[1][5]
Subspecies
These four subspecies belong to the species Melanoplus sanguinipes:
-
Melanoplus sanguinipes atlanis (Riley, 1875) i c g
-
Melanoplus sanguinipes defectus Scudder, 1897 i c g
-
Melanoplus sanguinipes sanguinipes (Fabricius, 1798) i c g
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Melanoplus sanguinipes vulturnus Gurney and Brooks, 1959 i g
Data sources: i = ITIS,[1] c = Catalogue of Life,[2] g = GBIF,[3] b = Bugguide.net[4]
References
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Melanoplus sanguinipes: Brief Summary
(
англиски
)
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Melanoplus sanguinipes, known generally as migratory grasshopper, is a species of spur-throated grasshopper in the family Acrididae. Other common names include the lesser migratory grasshopper and red-legged grasshopper. It is found in the Caribbean and North America.
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Melanoplus sanguinipes
(
шпански; кастиљски
)
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Melanoplus sanguinipes[nota 1] es una especie de saltamontes perteneciente a la familia Acrididae.[1][2][3][4] Esta especie se encuentra en casi toda América del Norte y en el Caribe.[1][5][6]
Se alimenta de una variedad de plantas y puede llegar a ser una plaga de cosechas y jardines. Pasa el invierno como huevos en el suelo y puede tener dos generaciones en el sur. Es una especie migratoria, su nombre común en inglés se refiere a esta cualidad.[4]
Subespecies
Estas cuatro subespecies pertenecen a la especie Melanoplus sanguinipes:[1][3]
Notas
-
↑ En inglés es conocido como migratory grasshopper, lesser migratory grasshopper y red-legged grasshopper.
Referencias
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Melanoplus sanguinipes: Brief Summary
(
шпански; кастиљски
)
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Melanoplus sanguinipes es una especie de saltamontes perteneciente a la familia Acrididae. Esta especie se encuentra en casi toda América del Norte y en el Caribe.
Se alimenta de una variedad de plantas y puede llegar a ser una plaga de cosechas y jardines. Pasa el invierno como huevos en el suelo y puede tener dos generaciones en el sur. Es una especie migratoria, su nombre común en inglés se refiere a esta cualidad.
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Melanoplus sanguinipes
(
холандски; фламански
)
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Insecten Melanoplus sanguinipes is een rechtvleugelig insect uit de familie veldsprinkhanen (Acrididae). De wetenschappelijke naam van deze soort is voor het eerst geldig gepubliceerd in 1798 door Fabricius.
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22-04-2013
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