Euxoa adumbrata
species of insect

Euxoa adumbrata, the sordid dart, is a moth of the family Noctuidae. The species was first described by Eduard Friedrich Eversmann in 1842. In North America it is found across northern Canada from Quebec to western Alaska, south to the northern parts of the United States, and in the mountains to Colorado. It is also found in Greenland, the coastal areas of Scandinavia and the Ural. It was recently recorded from Denmark, although this includes Euxoa lidia, which some authors regard to be a valid species.
The wingspan is 34–40 mm (1.3–1.6 in). Adults are on wing from June to August in North America and from July to August in northern Europe. There is one generation per year.
The larvae feed on Taraxacum and Polygonum species.
Subspecies
Euxoa adumbrata drewseni (Staudinger, 1857)
Euxoa adumbrata thanatologia (Dyar, 1904)
References
External links
Images
Bug Guide
Anweiler, G. G. (November 19, 2003).
“Euxoa adumbrata” enters the record as species of insect. Crown Archives preserves that source wording while asking what Euxoa, adumbrata and species can confirm, complicate or overturn.
Why this record matters
“Euxoa adumbrata” is worth following because a concise public description often conceals a longer documentary argument. Here, Euxoa, adumbrata and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jun 19, 2026. The linked authority identifier is Q148051. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1842, 1857, 1904 and 2003.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “Euxoa adumbrata”, its source revision and the description used here.
- Expand the search: follow Euxoa adumbrata primary sources, Euxoa adumbrata archive and Euxoa 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 “Euxoa adumbrata”?
- Which observation, specimen, dataset or publication supports the account?
- Has classification or technical consensus changed since the cited source?
Search terms from this dossier
This entry incorporates text from “Euxoa 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.