Bactrocera dorsalis
In 3 days ~10% in a week ~30%
Bactrocera dorsalis, previously known as Dacus dorsalis and commonly referred to as the oriental fruit fly, is a species of tephritid fruit fly that is originally from to Southeast Asia. It is one of the major pest species in the genus Bactrocera with a broad host range of cultivated and wild fruits. Male B. dorsalis respond strongly to methyl eugenol, which is used to monitor and estimate populations, as well as to annihilate males as a form of pest control. They are also important pollinators and visitors of wild orchids, Bulbophyllum cheiri and Bulbophyllum vinaceum in Southeast Asia, which lure the flies using methyl eugenol.
The fly is similar to the closely related species B. carambolae and B. occipitalis. The species name B. dorsalis is identical to other synonyms B. papayae, B. invadens and B. philippinensis. B. dorsalis is a species of tephritid fruit fly. Flies that belong to this family are usually small to medium-sized with colorful markings. In particular, B. dorsalis belongs to a complex of physically similar flies called the Bactrocera dorsalis complex, whose defining characteristics include a mostly black thorax and dark T-shaped marking on the fly... 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 an Oriental Fruit Fly sighting in Singapore on a given day, based on 60 verified sightings from GBIF citizen-science data. It is the 337th most-seen of the 1045 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
January–February, June, August and October–November
In those months about 10% of wildlife watchers report an Oriental Fruit Fly in Singapore on a given day, against under 5% in March–May, July, September and December, the lowest months.
5th of 12
Of the 12 cities where we can rate Oriental Fruit Fly sightings, Singapore ranks 5th at under 5%. The best odds are in Taichung (Taiwan, about 10%), Kaohsiung (Taiwan, about 10%) and Zhuhai [Macau] (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Oriental Fruit Fly is recorded against all the insects logged in Singapore (60 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.
