Brumoides suturalis
In 3 days ~20% in a week ~30%
Brumoides suturalis, the three-striped lady-beetle, is a species of ladybird described by Johan Christian Fabricius in 1789. It is found in India, Pakistan, Bangladesh, Sri Lanka, Bhutan, Nepal, Indonesia, Philippines and Papua New Guinea.
Adults reach a length of about 3.5–3.8 mm (0.14–0.15 in). Adults are small and ovate. Head and thorax are brown. Eyes are black. Elytra yellowish white with two black stripes. One strip runs down the trailing edge, whereas the other stripe runs the middle of each elytron. Pronotum brownish anterio-laterally and creamy in the center. Scutellum and ventrum brownish.
Adult female lays egg cluster of 2 to 20.within shingle-like crevices made by overlapping leaves in curled leaves, or sometimes at the junction of leaf and stem. Eggs are yellowish with orange tinge. Larva undergo four instars. Newly hatched instar is smoky grey and fuzzy. With each moult, body becomes more elongated with spiny projections over the body.
It is known to feed on wide variety of aphids: Aphis craccivora, Aphis gossypii, Brevicoryne brassicae, Lipaphis erysimi, Myzus persicae, Hyadaphis coriandri, Hysteroneura setariae, Ropalosiphum maidis, Therioaphis... 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 Three-Striped Lady Beetle sighting in New Delhi on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 115th most-seen of the 174 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
February to May
In those months about 10% of wildlife watchers report a Three-Striped Lady Beetle in New Delhi on a given day, against under 5% in June to January, the lowest months. Those are among New Delhi's driest months, with about 20 mm of rain a month against 220 mm in July.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Three-Striped Lady Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 7 cities where we can rate Three-Striped Lady Beetle sightings, New Delhi ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Prayagraj (India, about 10%), Chennai (India, about 10%) and Hyderabad (India, about 10%).
Same family: Coccinellidae
The closest relatives of the Three-Striped Lady Beetle that you can see in New Delhi (family Coccinellidae, Lady Beetles) are Seven-Spotted Lady Beetle (about 20%), Six-Spotted Zigzag Ladybird (about 20%) and Anegleis cardoni (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Three-Striped Lady Beetle is recorded against all the insects logged in New Delhi (8 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.
