Philornis
genus of insects
Philornis is a genus of around 50 species of fly (Diptera, Muscidae) from Central and South America. Their larvae are subcutaneous parasites of nestling birds. They are sometimes referred to as "bot flies", though they are not related to true bot flies (family Oestridae).
Two species are also found in the southern United States. One species, P. downsi, has been accidentally introduced to the Galapagos Archipelago, posing a major threat to some of its endemic birds.
They parasitize a wide range of bird species including psittacines. A study in the Peruvian Amazon compared parasite prevalence among different nests of scarlet macaws at the Tambopata research site, to see whether any of the nest types resulted in higher infestation. Parasite prevalence was significantly lower in natural nest hollows than in artificial nest boxes. The most extreme intensity was 63 larvae per chick, which is higher than those found for other Neotropical parrots. The study also described a new and efficient technique to remove larvae using a reverse syringe design snake bite extractor.
“Philornis” enters the record as genus of insects. Crown Archives preserves that source wording while asking what Philornis, genus and insects can confirm, complicate or overturn.
Why this record matters
“Philornis” is worth following because a concise public description often conceals a longer documentary argument. Here, Philornis, genus and insects provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 28, 2026. The linked authority identifier is Q7186151. 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.
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 “Philornis”, its source revision and the description used here.
- Expand the search: follow Philornis primary sources, Philornis archive and Philornis 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 “Philornis”?
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- Has classification or technical consensus changed since the cited source?
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This entry incorporates text from “Philornis” 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.