Macrobrochis gigas
In 3 days ~10% in a week ~30%
Macrobrochis gigas is a moth of the family Erebidae. It was described by Francis Walker in 1854. It is found in China (Yunnan), India (Sikkim), Bhutan, Nepal, Indonesia, Thailand, Hong Kong and Taiwan. The habitat consists of woodlands.
Adults have been recorded on wing from March to May. There is one generation per year. The species is possibly involved in a mimicry relationship with Eterusia aedea. Macrobrochis gigas differs from congeners in the following morphological characters: orange head and collar; thorax black above with green metallic tinge and orange below; tegulae striped with orange; abdomen greenish black, the extremity and ventral surface orange; abdomen with white bands or lateral spots on the hind borders of each segment; forewing black with a green tinge, with a small white spot at the base, with a larger one beyond it, and a spot at the end of the cell and another below it; hindwing with the basal half white, the outer half black. Mass aggregation and feeding behavior of this species adult and larvae observed in several sites in South India Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Macrobrochis gigas sighting in Hong Kong on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 352nd most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April to June
In those months about 10% of wildlife watchers report a Macrobrochis gigas in Hong Kong on a given day, against under 5% in July to March, the lowest months. Those are among Hong Kong's wettest months, with about 200 mm of rain a month against 25 mm in December.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Macrobrochis gigas sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 cities where we can rate Macrobrochis gigas sightings, Hong Kong ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Dehradun (India, about 10%), Taipei (Taiwan, about 10%) and Taichung (Taiwan, about 10%).
Same family: Erebidae
The closest relatives of the Macrobrochis gigas that you can see in Hong Kong (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Banyan Tussock Moth (about 20%), Orvasca subnotata (about 20%) and Zhejiang Tussock Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Macrobrochis gigas is recorded against all the insects logged in Hong Kong (29 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.
