Ypsolopha
genus of insects
Ypsolopha is a genus of moths of the family Ypsolophidae. It is the type genus of the family and comprises over 120 described species (about 95% of the family's known world diversity).
Distribution
Most Ypsolopha species have been recorded from the Holarctic temperate region.
Description
Ypsolopha species are variable in shape and color and no exclusive superficial features have been established for the group. In contrast, the genitalia of both sexes are remarkably homogeneous.
Biology
Adults are nocturnal or rarely diurnal. Their resting postures are various, but they often have the head down and the lower body up. Ypsolopha acuminata mimics a small broken branch at rest. The larvae usually live in open webs on the leaves of various, primarily woody, plants and mostly feed on a limited range of host plants. They are active primarily at night and have two defensive behaviors that involve wiggling and jumping.
Begin with the source’s own compact description: “Ypsolopha” is genus of insects. The dossier treats that line as a proposition to test through Ypsolopha, genus and insects, not as a finished interpretation.
Why this record matters
The phrase “genus of insects” 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 Feb 25, 2024. The linked authority identifier is Q3020455. None of the 0 selected statements returned an explicit reference.
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.
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This entry incorporates text from “Ypsolopha” 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.