Conservation Status
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A widespread but uncommon species. No obvious concerns.
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Cyclicity
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In Alberta adults have been collected from mid-June through early September.
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Distribution
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Widespread in western North America, from southern SK west to southern BC, and south to at least Colorado and California. In Alberta the Gentle Dagger Moth occurs in wooded and shrubby areas, especially in riparian woodlands, throughout the arid Grasslands region, north to at least the lower Red Deer River.
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General Description
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A relatively small (3.0-3.2 cm wingspan) narrow-winged dagger-moth with clean blue-grey forewings and shining white hindwings. The black basal streak is long and thin, forking both up and down toward the wing margins. The orbicular and reniform spots are outlined in black scales and filled with paler scales. The antemedian and postmedian lines are well marked and doubled, and the postmedian line in particular is filled with light scales. The "dagger-mark" in the anal angle is prominent, and in some specimens there are rusty-brown scales. The lower third of the forewings is suffused with blackish scales, giving the wing a two-toned appearance. The hindwings are shining white, darkening slightly along the margin and with some dark scaling along the veins, particularly in females. The antennae are simple in both sexes.
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Habitat
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Dry deciduous woodland and tall shrub.
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Life Cycle
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The Gentle Dagger Moth is a solitary defoliator of deciduous trees or shrubs. The adults come to both light and sugar bait. The extended flight period in southern Alberta is undoubtedly the result of more than one annual brood.
This little dagger moth has been collected mainly in riparian woodlands along the river valleys of the plains in southern Alberta. It was not listed for Alberta by Bowman (1951).
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Trophic Strategy
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No Alberta (or Canadian) data. Elsewhere, Prunus subcordata has been listed as a larval host, and one or more of the native cherries (Prunus sp). are the probable host in Alberta as well.
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Acronicta mansueta
(
англиски
)
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Acronicta mansueta: Brief Summary
(
англиски
)
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Acronicta mansueta, the gentle dagger moth, is a moth of the family Noctuidae. The species was first described by Smith in 1897. It was considered a synonym of Acronicta falcula, but was reinstated as a valid species in 2011. It is widespread in western North America, from southern Saskatchewan west to southern British Columbia, and south to at least Colorado and California.
The wingspan is 30–32 mm. Adults are on wing from June to September depending on the location.
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Acronicta mansueta
(
холандски; фламански
)
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Insecten Acronicta mansueta is een vlinder uit de familie van de uilen (Noctuidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1897 door Smith.
Bronnen, noten en/of referenties Geplaatst op:
11-04-2013
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