Mallada basalis
In 3 days ~10% in a week ~20%
Mallada basalis is a species of green lacewing in the family Chrysopidae, first described by Francis Walker in 1853. No subspecies are listed in the Catalog of Life. The species was detected on mainland New Zealand in the 2010s.
Mallada basalis has a length of 10–15 mm, and typically has a pale green colour. Its translucent, veined wings are iridescent in natural sunlight. Specimens can be identified by a green pterostigma present in the hind wings that is not present in Chrysopidae of a similar appearance.
Mallada basalis has been identified on the Eastern states of Australia, the Philippines, Taiwan, the Ryukyu Islands, Micronesia and Polynesia (including an outlier population on Easter Island). Mallada basalis has been seen living in both suburban and native flora environments.
The first confirmed sighting of Mallada basalis in New Zealand was in 1940 on the Kermadec Islands, though evidence of the species may go back as far as 1908. In 2010, a specimen was identified on Tiritiri Matangi Island in the Hauraki Gulf, and the first specimen in Auckland was identified in 2016. By 2020, Mallada basalis was present across the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand | |
| 2 | Zhuhai [Macau] | 🇨🇳 China | |
| 3 | Sydney | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Mallada basalis sighting in Sydney on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 621st most-seen of the 742 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 Mallada basalis in Sydney on a given day, so our monthly data shows no clear season.
3rd of 3
Of the 3 cities where we can rate Mallada basalis sightings, Sydney ranks 3rd at under 5%. The best odds are in Auckland (New Zealand, about 30%) and Zhuhai [Macau] (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Mallada basalis is recorded against all the insects logged in Sydney (6 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.
