Austrolestes colensonis
In 3 days ~10% in a week ~20%
Austrolestes colensonis (Māori: kekewai), commonly known as the blue damselfly, is a species of damselfly of the family Lestidae. It is endemic to New Zealand and can commonly be found throughout the country, and at any time of the year. It is New Zealand's largest damselfly, and only blue odonate.
This species was first being described by Adam White in 1846. The first reference to this species was an illustration published under the name Agrion colensonis. In 1862 Edmond de Sélys Longchamps wrote a description of the species and used the name Lestes colensonis. The New Zealand entomologist George Hudson described, discussed and illustrated this species in 1904 under the name L. colensonis. In 1913 Robin Tillyard placed this species within the genus Austrolestes.
Hudson described the species as follows: The expansion of the wings is 2+1⁄8 inches, and the length of the body 1+3⁄4 inches. The general colour of the male is dark purplish-black, with brilliant blue markings. The front of the labium, the pronotum, two broad stripes on the mesonotum, the articulations of the wings and the articulations of the abdomen are brilliant blue. The legs are black... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Fiordland National Park | 🇳🇿 New Zealand | |
| 2 | Arthur's Pass National Park | 🇳🇿 New Zealand | |
| 3 | Rakiura National Park | 🇳🇿 New Zealand | |
| 4 | Egmont National Park | 🇳🇿 New Zealand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
Rare
Under 5% of wildlife watchers report a Blue Damselfly sighting in Auckland on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 574th 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.
July
In that month about 10% of wildlife watchers report a Blue Damselfly in Auckland on a given day, against under 5% in August to June, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Blue Damselfly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Blue Damselfly sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Odonata
The closest relatives of the Blue Damselfly that you can see in Auckland (order Odonata, Dragonflies and Damselflies) are Red Damselfly (about 20%), Aurora Bluetail (about 10%) and Carové's Giant Dragonfly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Damselfly is recorded against all the insects logged in Auckland (7 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.
