Richard Haensch
German entomologist and insect dealer
Richard Hänsch or Haensch (16 September 1865 – ?) was a German entomologist, zoologist, and insect dealer in Berlin.
Haensch was born in Rostock, Grand Duchy of Mecklenburg-Schwerin, to Carl Helmuth Hänsch and Maria Otilie Dorothea Krüger.
He collected in Bahia (1893–1894) and Minas Gerais (1896–1897) in Brazil, and in Ecuador (1899–1900).
He wrote the section "Familie Danaidae" in Die Gross-Schmetterlinge der Erde [The Large Butterflies of the World] (1909–1910) edited by Adalbert Seitz and published by Alfred Kernen, Stuttgart, Germany. His revision of the subfamily Ithomiinae is still the standard work. The types of the new taxa he described are in Museum für Naturkunde Berlin. Coleoptera and Arachnida supplied by his dealership are in the same museum. Hemiptera (rarely available from dealerships) are in Staatliches Museum für Tierkunde Dresden and Institute of Zoology, Polish Academy of Sciences, Warsaw (originally supplied to Natural History Museum, Stettin) and in the German Entomological Institute collection.
Haensch is commemorated in the scientific name of a species of South American lizard, Stenocercus haenschi.
Sources
Gädecke R., Groll, E.K. (editors) (2010).
This brief starts where responsible research should: with the source description of “Richard Haensch” as german entomologist and insect dealer. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as german entomologist and insect dealer. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Oct 12, 2025. The linked authority identifier is Q636119. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1865, 1893, 1894 and 1896.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. 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 “Richard Haensch”, its source revision and the description used here.
- Expand the search: follow Richard Haensch primary sources, Richard Haensch archive and Richard 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 “Richard Haensch”?
- Is the terminology current, historical or disputed?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “Richard Haensch” 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.