Theretra silhetensis
In 3 days ~10% in a week ~20%
Theretra silhetensis, the brown-banded hunter hawkmoth, is a moth of the family Sphingidae described by Francis Walker in 1856. It lives in Indo-Australia, India, Sri Lanka, Papua New Guinea, East Australia, Solomon Islands, Fiji Islands, Vanuatu Islands.
The wingspan is 60–72 mm. Not to be confused with Theretra oldenlandiae in being very much paler in color and with a white line down the center of the abdomen. The forewing has a silvery line beyond the oblique brown band. Other parts are ochreous. Larvae are exceedingly variable, from yellow green and green to brown or greyish black ones. But the commonly found color of larva is green with a reddish-brown dorsal area. There is a subdorsal paler line with equal-sized ocelli from 4th to 10th somites with green center. The horn is reddish brown as well.
Larvae have been recorded feeding on Colocasia antiquorum and Ludwigia species in southern China, Colocasia esculenta in Japan, Ludwigia repens and Boerhavia species in India and numerous other host plants from elsewhere, including Arum, Caladium, Pistia, Kochia, Ipomoea, Boerhavia, Ludwigia, Rosa and Trapa species.
Theretra silhetensis... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Daintree National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Brown-Banded Hunter Hawkmoth sighting in Brisbane on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 538th most-seen of the 1083 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.
January and February
In those months about 10% of wildlife watchers report a Brown-Banded Hunter Hawkmoth in Brisbane on a given day, against under 5% in March to December, the lowest months. Those are among Brisbane's wettest months, with about 150 mm of rain a month against 40 mm in July.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Brown-Banded Hunter Hawkmoth sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
7th of 8
Of the 8 cities where we can rate Brown-Banded Hunter Hawkmoth sightings, Brisbane ranks 7th at under 5%. The best odds are in Ponnani (India, about 20%), Kochi (India, about 20%) and Kolkata (India, about 10%).
Same genus: Theretra
The closest relatives of the Brown-Banded Hunter Hawkmoth that you can see in Brisbane (genus Theretra, Hunter Hawkmoths) are Pale Brown Hawkmoth (about 10%) and Tryon's Hawkmoth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown-Banded Hunter Hawkmoth is recorded against all the insects logged in Brisbane (16 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.
