Tetragonus catamitus
In 3 days ~20% in a week ~40%
Tetragonus catamitus, the common butterfly moth, or Philippine callidulid moth, is a moth of the family Callidulidae. It was first described by Carl Geyer in 1832. Noted from Taiwan, north-eastern India, south-west India, the Andaman and Nicobar Islands, Sri Lanka, the Tenasserim Hills of Myanmar and from Java. They are day-flying moths that can be easily mistaken for a butterfly due to the position in which they hold their wings.
The head, thorax and abdomen are dark yellowish and reddish brown. The wings are yellowish and reddish brown. The hindwings are more uniform reddish brown. On the underside, there are dark striations and both the forewing and hindwing have three grey spots in the discal cell. There are four pale rufous bands along the medial, postmedial, submarginal region.
The species was named Tetragonus catamitus by Carl Geyer in 1832 based on a specimen from Java and later described under the name of Cleosiris fasciata by Frederic Moore. The larvae were described later as being translucent green with a dark black semi-prognathous head and a prothorax with a well-developed prothoracic shield. Young instar larvae live in a rolled leaf, and... Wikipedia →
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Common Butterfly Moth sighting in Tuen Mun on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 218th most-seen of the 557 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.
March to December
In those months about 10% of wildlife watchers report a Common Butterfly Moth in Tuen Mun on a given day, against under 5% in January and February, the lowest months.
Among the best
Of the 3 cities where we can rate Common Butterfly Moth sightings, Tuen Mun ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Kochi (India, about 10%).
Same order: Lepidoptera
The closest relatives of the Common Butterfly Moth that you can see in Tuen Mun (order Lepidoptera, Butterflies and Moths) are Common Mormon Swallowtail (about 40%), Great Eggfly (about 40%) and Pale Grass Blue (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Butterfly Moth is recorded against all the insects logged in Tuen Mun (18 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.
