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Dysgonia algira

species of insect

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 5, 2025
Entity authorityQ311656 ↗
Source-derived summary

Dysgonia algira, the passenger, is a moth of the family Noctuidae. The species was first described by Carl Linnaeus in 1767 and is found in the Palearctic - from the southern half of Europe and parts of North Africa through West, Central and South Asia.

Technical description and variation

O. algira L. (= achatina Sulz., triangularis Hbn) Forewing brownish fuscous, with a purplish tinge when fresh; a whitish median band narrowed in middle, edged inwardly by the erect but slightly outcurved inner line, outwardly by the similarly incurved median line: outer line acutely angled outwards on vein 6 and bluntly bent between veins 3 and 4. then sinuous to inner margin near median line; a black apical streak of two spots; the terminal area violet grey: hindwing fuscous, with a diffuse whitish median band: the terminal area grey at middle: fringe grey, below apex whitish; the ab. mandschuriana Stgr.[ now full species Dysgonia mandschuriana (Staudinger, 1892) ] is more uniformly purplish or slaty grey, with the median band only slightly paler, not white. Larva yellowish grey, darker on dorsum, with tine black longitudinal lines; venter and feet pale grey; spiracles black; head yellowish grey. The wingspan is 40–46 mm.

Biology

The moth flies from May to August depending on the location. The larvae feed on Rubus and willow.

Editorial summary

Begin with the source’s own compact description: “Dysgonia algira” is species of insect. The dossier treats that line as a proposition to test through Dysgonia, algira and species, not as a finished interpretation.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—1767, 1892—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Dysgonia, algira and species is the immediate research focus.
Editorial analysis

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.

Evidence profile

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 Sep 5, 2025. The linked authority identifier is Q311656. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1767 and 1892.

Critical limits

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.

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  • Current terminology
  • Classification context
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Three-step research path

  1. Establish the record: confirm the title “Dysgonia algira”, its source revision and the description used here.
  2. Expand the search: follow Dysgonia algira primary sources, Dysgonia algira archive and Dysgonia research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from “Dysgonia algira” 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.