Nomophila nearctica
In 3 days ~10% in a week ~30%
Nomophila nearctica, the lucerne moth, clover nomophila, false webworm, celery stalkworm or American celery webworm, is a moth of the family Crambidae. It is known from southern Canada and all of the United States, south to Mexico and the Neotropics.
The wingspan is 24–35 mm. Adults are on wing from April to November in North America. The larvae feed on celery, grasses, lucerne, Medicago sativa, Polygonum, Melilotus and various other low-growing herbaceous plants. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Big Bend National Park | 🇺🇸 United States | |
| 4 | Acadia National Park | 🇺🇸 United States | |
| 5 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | Baltimore | 🇺🇸 United States | |
| 4 | Chicago | 🇺🇸 United States | |
| 5 | Detroit | 🇺🇸 United States | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Houston | 🇺🇸 United States | |
| 10 | Toronto | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Lucerne Moth sighting in Denver on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 158th most-seen of the 461 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.
May and August–October
In those months about 10% of wildlife watchers report a Lucerne Moth in Denver on a given day, against under 5% in June–July and November–April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Lucerne Moth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
13th of 21
Of the 21 cities where we can rate Lucerne Moth sightings, Denver ranks 13th at under 5%. The best odds are in Austin (United States, about 10%), Dallas (United States, about 10%) and Baltimore (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Lucerne Moth is recorded against all the insects logged in Denver (30 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.
