Drosophila hydei
In 3 days ~10% in a week ~20%
Drosophila hydei is a species of Diptera, or the order of flies, in the family Drosophilidae. It is a species in the hydei species subgroup, a group in the repleta species group. Bizarrely, it is also known for having approximately 23 mm long sperm, 10 times the length of the male's body. Drosophila hydei are commonly found on compost piles worldwide, and can be rudimentarily identified by eye owing to their large size and variegated pigment pattern on the thorax. The name derives from Dr R. R. Hyde, who first discovered that the species was distinct from Drosophila repleta. D. hydei are one of the more popular flies used as feeders in the pet trade. A few varieties are available, some flightless. They are very similar to Drosophila melanogaster, despite having separated 50 million years ago.
Wild populations of D. hydei can be infected with Spiroplasma bacteria that defend the fly against parasitoid wasps. The Class II "Minos" transposon was identified as a repetitive element in the genome of Drosophila hydei. Minos transgenic tools derived from the element in Drosophila hydei have been used in an extremely wide variety of invertebrate and... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Hydei Fruit Fly sighting in London on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 1300th most-seen of the 1504 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Hydei Fruit Fly in London on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Hydei Fruit Fly sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Vienna (Austria, under 5%).
GBIF citizen-science records
It is estimated from how often the Hydei Fruit Fly is recorded against all the insects logged in London (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.
