Ischiodon scutellaris
In 3 days ~20% in a week ~50%
Ischiodon scutellaris, commonly known as the common hover fly or yellow-shouldered hover fly, is a species of hover fly found in India, Turkey to Japan and Australia, as well as all the Pacific islands except for Hawaii.
Larvae feed on aphids, and are considered an effective biological control agent. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Yellow-Shouldered Hover Fly sighting in Mumbai on a given day, based on 32 verified sightings from GBIF citizen-science data. It is the 109th most-seen of the 362 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a Yellow-Shouldered Hover Fly in Mumbai on a given day, against under 5% in May–July and September, the lowest months. That is one of Mumbai's driest months, with about 5 mm of rain against 830 mm in July.
4th of 17
Of the 17 cities where we can rate Yellow-Shouldered Hover Fly sightings, Mumbai ranks 4th at about 10%. The best odds are in Raipur (India, about 20%), Dhaka (Bangladesh, about 20%) and Jaipur (India, about 20%).
GBIF citizen-science records
It is estimated from how often the Yellow-Shouldered Hover Fly is recorded against all the insects logged in Mumbai (32 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.
