Verna's flower moth (Schinia verna) COSEWIC assessment and status report: chapter 12
Technical Summary
Schinia verna
Verna’s Flower Moth – Héliotin de Verna
Canadian population : Southeastern Alberta, west-central Saskatchewan and southwestern Manitoba
Extent and Area information
Population information
(>1 order of magnitude)?
Threats
Loss of native grassland habitat
Quantitative Analysis
insufficient data
Current Status
COSEWIC: Threatened (May 2005)
Status and Reasons for Designation
Status: Threatened
Alpha-numeric code: B2ab(iii)
Reasons for Designation: This moth is found only in the Canadian prairies, with one extant site in southeastern Alberta. The species is known historically from very few locations despite its relatively large size, distinctive markings and day-flying habit. It has a small total range in suitable native prairie that is fragmented and declining in quality and extent.
Applicability of Criteria
Criterion A (Declining Total Population): Insufficient information
Criterion B (Small Distribution, and Decline or Fluctuation): Met criterion B2ab(iii) and likely 2c(iv) for Threatened. The AO is small (<2000 km²), the species is known from <5 fragmented sites and its prairie habitat is declining. Extreme fluctuations in the number of mature individuals are likely.
Criterion C (Small Total Population Size and Decline): Insufficient information
Criterion D (Very Small Population or Restricted Distribution): Insufficient information
Criterion E (Quantitative Analysis): Insufficient information
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