Hasora vitta
In 3 days ~10% in a week ~20%
Hasora vitta, the plain banded awl, is a butterfly belonging to the family Hesperiidae which is found in India and parts of Southeast Asia. The butterfly, which has a wingspan of 45 to 55 mm, is dark brown above. It resembles the common banded awl (Hasora chromus), except in the case of having a broad white band on the under hindwing which is outwardly diffused; also, its wings are more prominently glossed.
Other differentiating characteristics are: Male: The upper forewing has an apical spot, sometimes with another in 3. The upper forewing has no brand. Female: The apical spot in the case of the female is larger, and there is an additional spot in 2.
The butterfly has two subspecies: Hasora vitta vitta - South Myanmar (Dawnas), Malaya peninsula, Indonesian archipelago and Philippines. Hasora vitta indica - South India, Sikkim, Assam, North Myanmar, Thailand and south western China.
The plain banded awl is found in India in the south (Kanara), Sikkim, Assam and eastwards to Myanmar, Thailand, western China, Malaysia, Indonesia and the Philippines. Not rare as per Evans (1932). Not common as per Wynter-Blyth (1957). Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Plain Banded Awl sighting in Singapore on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 448th most-seen of the 1045 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.
April to June
In those months about 10% of wildlife watchers report a Plain Banded Awl in Singapore on a given day, against under 5% in July to March, the lowest months.
Yes
Of the 2 cities where we can rate Plain Banded Awl sightings, Singapore has the highest daily chance: under 5%. Next come Hong Kong (China, under 5%).
Same genus: Hasora
The closest relatives of the Plain Banded Awl that you can see in Singapore (genus Hasora) are Yellow Banded Awl (about 10%) and Common Awl (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Plain Banded Awl is recorded against all the insects logged in Singapore (33 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.
