Drasteria adumbrata
species of insect
Drasteria adumbrata, the shadowy arches, is a moth of the family Erebidae. The species was first described by Hans Hermann Behr in 1870. It is found from coast to coast in southern Canada, south in the west to California and Colorado, south in the east to New England and Michigan. Subspecies D. a. alleni is found from eastern Alberta to New York and Nova Scotia. Subspecies D. a. saxea occurs from southern British Columbia and south-west Alberta south to California and Colorado.
The wingspan is about 32 mm. Adults are on wing in summer.
The larvae feed on Vaccinium angustifolium and probably other Vaccinium species.
Begin with the source’s own compact description: “Drasteria adumbrata” is species of insect. The dossier treats that line as a proposition to test through Drasteria, adumbrata and species, not as a finished interpretation.
Why this record matters
The phrase “species of insect” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Aug 30, 2025. The linked authority identifier is Q5305894. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1870.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Drasteria adumbrata”, its source revision and the description used here.
- Expand the search: follow Drasteria adumbrata primary sources, Drasteria adumbrata archive and Drasteria research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Drasteria adumbrata”?
- Has classification or technical consensus changed since the cited source?
- Is the terminology current, historical or disputed?
Search terms from this dossier
This entry incorporates text from “Drasteria adumbrata” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.