Diphlebia nymphoides
In 3 days ~50% in a week ~80%
Diphlebia nymphoides is a species of Australian damselfly in the family Lestoideidae, commonly known as an arrowhead rockmaster. It is endemic to eastern Australia, where it inhabits streams and rivers. Diphlebia nymphoides is a large, solid-looking damselfly; the adult male is a brilliant blue colour with a black and blue striped tail, while the female has a more muted colouring. It sits with its lightly tinted wings spread out.
The genus name Diphlebia is derived from the Greek δίς (dis, "twice" or "double") and φλέψ (phleps, "vein"), likely referring to distinctive wing venation. The species name nymphoides is derived from the Greek νύμφη (nymphē, "bride" or "nymph") and the suffix -ώδης (-ōdēs, "resembling"), alluding to its beauty.
List of Odonata species of Australia Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia | |
| 3 | Blue Mountains National Park | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report an Arrowhead Rockmaster sighting in Springbrook National Park on a given day, based on 95 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 429 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
October
In that month about 40% of wildlife watchers report an Arrowhead Rockmaster in Springbrook National Park on a given day, against under 5% in April to August, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Arrowhead Rockmaster sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 parks where we can rate Arrowhead Rockmaster sightings, Springbrook National Park ranks 2nd at about 20%. The best odds are in Lamington National Park (Australia, about 40%).
Same genus: Diphlebia
The closest relatives of the Arrowhead Rockmaster that you can see in Springbrook National Park (genus Diphlebia, Rockmasters) are Sapphire Rockmaster (about 30%) and Whitewater Rockmaster (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Arrowhead Rockmaster is recorded against all the insects logged in Springbrook National Park (95 verified sightings from 2019 to 2026), 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.
