Orthosia segregata
(Smith, 1893)
Separated Quaker
Orthosia segregata, commonly known as the Separated Quaker, is a of or dart moth in the Noctuidae. It belongs to the Orthosia, a group of early spring-flying often referred to as "quakers." The species was described by Smith in 1893 and is native to North America, with records from western Canadian provinces including Alberta, Manitoba, and Saskatchewan. Like other Orthosia species, it likely has a single per year with emerging in early spring.



Pronunciation
How to pronounce Orthosia segregata: /ɔɹˈθoʊsiə ˌsɛɡrəˈɡeɪtə/
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Identification
The "segregata" (meaning "separated") may refer to distinguishing features that separate this from . Within the Orthosia, species identification typically relies on subtle differences in forewing pattern, particularly the configuration of dark stigmata ( and spots) and the overall ground color. Accurate identification of O. segregata requires examination of genitalia or comparison with closely related species such as O. hibisci and O. gothica.
Images
Distribution
North America: recorded from Alberta, Manitoba, and Saskatchewan in Canada. The full extent of its range within North America is not comprehensively documented in available sources.
Seasonality
likely fly in early spring (March–May), consistent with other Orthosia . No specific period data is available for O. segregata, but in similar latitudes typically have a single with adult beginning in March.
Life Cycle
Presumed (one per year), with likely occurring in the pupal stage, as is characteristic of the Orthosia.
Behavior
are and attracted to light. Like other noctuid , they are disoriented by artificial light sources rather than actively attracted to them.
Ecological Role
Larvae (cutworms) likely function as herbivores on herbaceous plants or low-growing vegetation. may serve as early-season and as prey for including bats and birds.
Similar Taxa
- Orthosia hibisci (Speckled Green Fruitworm Moth)Similar early spring period and general appearance; O. hibisci is widespread across North America with -feeding caterpillars on deciduous trees and shrubs.
- Orthosia gothica (Hebrew Character)Another early spring Orthosia with similar ; distinguished by forewing pattern featuring a dark basal patch resembling a Hebrew letter.
- Orthosia cerasi (Common Quaker)Shares early spring and quaker appearance; fly March to May in temperate regions.
More Details
Taxonomic Note
Authority sometimes cited as (Smith, 1891) in some databases versus (Smith, 1893) in others; basionym Mamestra segregata.
MONA/Hodges Number
10493