Downesia sulcata
species of beetle
Downesia sulcata is a species of beetle of the family Chrysomelidae. It is found in Thailand and Vietnam.
Description
Adults reach a length of about 5.5 mm. This species is similar to Downesia tarsata. The adults are reddish-yellow. There are three raised ribs on each elytron, separated from each other by two rows of deeply depressed dots. Furthermore, the posterior third of the elytra is black.
Life history
No host plant has been documented for this species.
Taxonomy
Some sources list the author as Raffaello Gestro, but this is in error.
Begin with the source’s own compact description: “Downesia sulcata” is species of beetle. The dossier treats that line as a proposition to test through Downesia, sulcata and species, not as a finished interpretation.
Why this record matters
The phrase “species of beetle” 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.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Oct 26, 2025. The linked authority identifier is Q1814135. 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 “Downesia sulcata” 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.