Idiopterus nephrelepidis
In 3 days ~10% in a week ~20%
Idiopterus nephrelepidis, commonly known as the black fern aphid, is a species of aphid insect that feeds on various species of fern. It is the type species of the genus Idiopterus. Likely to have originated in the neotropics, it has spread across Europe, though it is only found indoors in Central and Northern Europe, New Zealand, and North America. 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 Fern Aphid sighting in Auckland on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 425th 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 20%, if each day is a fresh chance.
June–July and September
In those months about 10% of wildlife watchers report a Fern Aphid in Auckland on a given day, against under 5% in August and October–May, the lowest months.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Fern Aphid sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Aphididae
The closest relatives of the Fern Aphid that you can see in Auckland (family Aphididae, Aphids) are Oleander Aphid (about 10%), Giant Willow Aphid (about 10%) and Hairy-Tailed Fig Aphid (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Fern Aphid is recorded against all the insects logged in Auckland (12 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.
