Lestes praemorsus
In 3 days ~20% in a week ~40%
Lestes praemorsus is a damselfly species in the family Lestidae. It is commonly known as the scalloped spreadwing or sapphire-eyed spreadwing. It is very widely distributed from India to China and south to New Guinea. It is a medium-sized damselfly with the male have an abdomen length 32 to 35 mm compared to the similar looking species, Lestes dorothea having an abdomen length 36–40 mm. Its head is black and matured males have deep sapphire-blue eyes as in L. dorothea. Its thorax is black, pruinosed white laterally, yellowish beneath. The dorsum of the thorax is marked with a pair of metallic green antehumeral stripes shaped like those seen in L. dorothea. There are several irregular spots present on both sides. The thorax of matured males are heavily pruinosed, obscuring all these markings. Abdomen is blue marked with black on dorsum. Segments 2 to 7 have very narrow bluish basal rings. Segment 8 has a thin apico-lateral blue spot. Segment 9 has a very large lateral spot of blue on each side which may get pruinosed to form an apical ring in adults. Segment 10 also has a blue spot on each side, get pruinosed to form an apical ring in adults. Anal appendages... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Scalloped Spreadwing sighting in Singapore on a given day, based on 244 verified sightings from GBIF citizen-science data. It is the 193rd most-seen of the 1045 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.
Any time of year
In every month with enough records, about 10% of wildlife watchers report a Scalloped Spreadwing in Singapore on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Scalloped Spreadwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Scalloped Spreadwing sightings, Singapore has the highest daily chance: about 10%. Next come Kochi (India, under 5%).
Same order: Odonata
The closest relatives of the Scalloped Spreadwing that you can see in Singapore (order Odonata, Dragonflies and Damselflies) are Common Parasol (about 40%), Crimson Marsh Glider (about 30%) and Scarlet Skimmer (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scalloped Spreadwing is recorded against all the insects logged in Singapore (244 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.
