Helophilus seelandicus
In 3 days ~10% in a week ~30%
Helophilus seelandicus, commonly known as the three-lined hoverfly, is a hoverfly endemic to New Zealand. The common name corresponds to the three black lines behind the insect's head. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
Rare
Under 5% of wildlife watchers report a Three-Lined Hover Fly sighting in Auckland on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 311th most-seen of the 689 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.
July, September and November–January
In those months about 10% of wildlife watchers report a Three-Lined Hover Fly in Auckland on a given day, against under 5% in February–June, August and October, the lowest months.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Three-Lined Hover Fly sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Syrphidae
The closest relatives of the Three-Lined Hover Fly that you can see in Auckland (family Syrphidae, Hover Flies) are Common Drone Fly (about 20%), Small Hover Fly (about 10%) and Large Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Three-Lined Hover Fly is recorded against all the insects logged in Auckland (16 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.
