Ochrogaster lunifer
In 3 days ~20% in a week ~40%
Ochrogaster lunifer, the bag-shelter moth or processionary caterpillar, is a member of the family Notodontidae. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1855. Both the larval and adult forms have hairs that cause irritation of the skin (urticaria). The adult moth has a woolly appearance and its wings can grow to be about 5.5 cm across. The larvae feed on Grevillea striata at night and reside in brown silken bag nests during the day.
Ochrogaster lunifer has a one-year lifecycle, living communally with siblings and conspecifics from egg to pre-pupa. In October to November (Spring), adult moths emerge from the pupae underground, mate and the females lay an egg mass containing 150–550 eggs on the trunk or in the canopy of a host tree. Host trees include species of wattles and eucalypts. The eggs hatch after approximately 3–4 weeks. The caterpillars moult 7 times giving 8 instars which develop from December to May (Summer-Autumn). First instars do not feed and stay within the protection of the egg mass, other early instars feed on leaves in their host tree during the day and later instars feed at night. Throughout their development, the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Uluru-Kata Tjuta National Park | 🇦🇺 Australia | |
| 2 | Cape Range | 🇦🇺 Australia | |
| 3 | Hattah-Kulkyne National Park | 🇦🇺 Australia | |
| 4 | Ningaloo Marine Park | 🇦🇺 Australia | |
| 5 | Grampians National Park | 🇦🇺 Australia | |
| 6 | Blue Mountains National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brisbane | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Bag-Shelter Moth sighting in Brisbane on a given day, based on 80 verified sightings from GBIF citizen-science data. It is the 179th most-seen of the 1083 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report a Bag-Shelter Moth in Brisbane on a given day, against under 5% in February, May–September and December, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Bag-Shelter Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Brisbane, in our data
Brisbane is the only city on Wallace's Line with enough records to rate Bag-Shelter Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Notodontidae
The closest relatives of the Bag-Shelter Moth that you can see in Brisbane (family Notodontidae, Prominent Moths) are Ecnomodes sagittaria (about 10%), Golden Notodontid (about 10%) and Black Spot Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bag-Shelter Moth is recorded against all the insects logged in Brisbane (80 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.
