Ennomos quercaria
species of insect
Ennomos quercaria, the clouded August thorn, is a species of moth in the family Geometridae. The species was first described by Jacob Hübner in 1813. It is mostly found in southern Europe. There are two dubious records from Britain, one in the 19th century, then again in south-east England in 1992.
The wingspan is 28–35 mm. Adults are on wing from June to September.
The larvae feed on various species of oak.
Begin with the source’s own compact description: “Ennomos quercaria” is species of insect. The dossier treats that line as a proposition to test through Ennomos, quercaria 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.
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 Jan 28, 2024. The linked authority identifier is Q5379232. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1813 and 1992.
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 “Ennomos quercaria”, its source revision and the description used here.
- Expand the search: follow Ennomos quercaria primary sources, Ennomos quercaria archive and Ennomos 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 “Ennomos quercaria”?
- Which observation, specimen, dataset or publication supports the account?
- Is the terminology current, historical or disputed?
Search terms from this dossier
This entry incorporates text from “Ennomos quercaria” 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.