Synthesiomyia nudiseta
In 3 days ~10% in a week ~20%
Synthesiomyia nudiseta is one of the largest flies in the family Muscidae. The fly has a pair of forewings; the paired hind wings have been reduced to halteres that help with stability and movement during flight. Key characteristics of this species include plumose (that is, "feathery") segmented aristae, well-developed calypters, and sternopleural bristles. Synthesiomyia nudiseta is a forensically important species because it is necrophagous and can therefore help determine the time of colonization for the post mortem interval with its known life cycle.
The species Synthesiomyia nudiseta, was named by Frederik Maurits van der Wulp in 1883; and S. nudiseta is the only known species under the genus Synthesiomyia. Synthesiomyia nudiseta is essentially a kind of necrophagous fly. Larvae of S. nudiseta were found in a cadaver in Costa Rica, and the larvae have also been shown to be important on decomposition of carcasses in Malaysia. S. nudiseta are said to be useful in the recognition of the range of post-death, and of importance to forensic entomology. In Brazil, S. nudiseta is very common in Rio de Janeiro, where it is highly synanthropic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lima | 🇵🇪 Peru | |
| 2 | Zhuhai [Macau] | 🇨🇳 China | |
| 3 | Tel Aviv | 🇮🇱 Israel | |
| 4 | Lisbon | 🇵🇹 Portugal | |
| 5 | Madrid | 🇪🇸 Spain | |
| 6 | Guangzhou | 🇨🇳 China | |
| 7 | Taipei | 🇹🇼 Taiwan | |
| 8 | Sydney | 🇦🇺 Australia | |
| 9 | Miami | 🇺🇸 United States | |
| 10 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Synthesiomyia nudiseta sighting in Madrid on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 350th most-seen of the 457 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
October and November
In those months about 10% of wildlife watchers report a Synthesiomyia nudiseta in Madrid on a given day, against under 5% in December to September, the lowest months. Those are among Madrid's wettest months, with about 60 mm of rain a month against 10 mm in July.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Synthesiomyia nudiseta sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 10
Of the 10 cities where we can rate Synthesiomyia nudiseta sightings, Madrid ranks 5th at under 5%. The best odds are in Lima (Peru, about 10%), Zhuhai [Macau] (China, about 10%) and Tel Aviv (Israel, about 10%).
GBIF citizen-science records
It is estimated from how often the Synthesiomyia nudiseta is recorded against all the insects logged in Madrid (7 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.
