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Northern emerald

species of insect

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 18, 2026
Entity authorityQ674064 ↗
Source-derived summary

The northern emerald (Somatochlora arctica) is a species of emerald dragonfly found in northern and middle Eurasia. The species was first described in 1840 from Scandinavia. It is a relatively small dragonfly, just 4 to 5 centimetres (1.6 to 2.0 in) long, and is recognizable by its hairy thorax, dark abdomen, and bright green eyes. The males have narrowly waisted abdomens, while the females have straight ones; the females are also recognizable by the two lateral yellow spots behind the thorax. Northern emeralds pass two years as larvae in sphagnum-rich bog pools before emerging as adults which hunt above peat bogs, wet meadows, and open woodlands. Despite being assessed as a least-concern species by the IUCN, northern emeralds are threatened by habitat loss caused by human activity, and climate change is expected to exacerbate the problem. The northern emerald is found from Japan and the Kamchatka Peninsula through much of Russia. It is abundant throughout Fennoscandia, and is also well-known from the Alps and the Scottish Highlands. Its distribution in lowland Europe is sparse, but the dragonflies can be hard to find and record.

Taxonomy

The northern emerald is known scientifically as Somatochlora arctica and is placed in the family Corduliidae.

Editorial summary

This brief starts where responsible research should: with the source description of “Northern emerald” as species of insect. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current lead gives the account dated anchors—1840—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Northern, emerald and species can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as species of insect. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 18, 2026. The linked authority identifier is Q674064. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1840.

Critical limits

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.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Northern emerald”, its source revision and the description used here.
  2. Expand the search: follow Northern emerald primary sources, Northern emerald archive and Northern 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

  1. Which source most directly establishes the central claim about “Northern emerald”?
  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 “Northern emerald” 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.