Brithys crini
In 3 days ~10% in a week ~30%
Brithys crini, the amaryllis borer, crinum borer, lily borer or Kew arches, is a moth of the family Noctuidae. It is a garden pest in parts of its range, as their larvae damage the stems and leaves of lilies, especially lilies of the family Amaryllidaceae.
It is found in the coastal areas of Southern Europe and North Africa, south to South Africa. Furthermore, it is found in Japan and in Queensland and Northern Territory in Australia towards India and Sri Lanka. The wingspan of the moth is about 40 mm. Its head, thorax and forewings are very dark brown, but paler toward the wingtips. Sub-basal, median and postmedial indistinct waved lines are black. A curved submarginal ochreous line with ferrous colored lunules found on each side of it. There is a marginal black lunule series. The hindwings are practically white. Tarsi bear black and white stripes. In Europe the adults are on the wing in July.
There are several generations per year, though development slows down in cooler seasons, when the larvae sometimes overwinter by boring into the bulbs of the host plants. The moth lays clusters of a few dozen eggs on the host plant leaves. The... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Table Mountain National Park | 🇿🇦 South Africa | |
| 2 | Garden Route National Park | 🇿🇦 South Africa |
Rare
Under 5% of wildlife watchers report a Lily Borer sighting in Garden Route National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 183rd most-seen of the 298 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March, May, August–September and December–January
In those months about 10% of wildlife watchers report a Lily Borer in Garden Route National Park on a given day, against under 5% in February, April, June–July and October–November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Lily Borer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Lily Borer sightings, Garden Route National Park ranks 2nd at under 5%. The best odds are in Table Mountain National Park (South Africa, about 10%).
GBIF citizen-science records
It is estimated from how often the Lily Borer is recorded against all the insects logged in Garden Route National Park (9 verified sightings from 2019 to 2026), 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.
