Sarcophaga peregrina
In 3 days ~70% in a week ~90%
Sarcophaga peregrina (synonym Boettcherisca peregrina) is a species of flesh fly belonging to the family Sarcophagidae. They easily breed, multiply and spread in human habitation, from garbage, faeces and livestock manures. In many regions, they are health concerns as they are active vectors of infectious diseases such as myiasis in humans. Due to their close contact with human activities, they are considered as forensically important insects. They can be used for molecular analysis of the time of postmortem intervals. They are also occasionally parasitic in other invertebrates. They produce a group of antibacterial peptide called sarcotoxins. The first of such protein, sarcotoxin 1A, was determined in 1983 by Masayuki Okada and Shunji Natori at the University of Tokyo, Japan.
Sarcophaga peregrina has been reported in Southeast Asian region from Sri Lanka to Indonesia, China, Japan, Australia, Samoa and Cook Islands, Hawaii, and throughout Europe. They are usually the most abundant fly in these regions as they rapidly breed in chicken manure, and also on foods and excrement around human habitations.
Sarcophaga peregrina looks like normal flies, and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guiyang | 🇨🇳 China |
Possible
About 30% of wildlife watchers report a Sarcophaga peregrina sighting in Guiyang on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 36 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
May and August
In those months about 50% of wildlife watchers report a Sarcophaga peregrina in Guiyang on a given day, against under 5% in February, April and September–October, the lowest months. Those are among Guiyang's wettest months, with about 160 mm of rain a month against 25 mm in February.
Only Guiyang, in our data
Guiyang is the only city on Wallace's Line with enough records to rate Sarcophaga peregrina sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sarcophaga peregrina is recorded against all the insects logged in Guiyang (8 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
