Dargida diffusa
In 3 days ~10%
Dargida diffusa, the wheat head armyworm, is a moth of the family Noctuidae. It is found in most of North America, except Yukon and Alaska. The wingspan is 27–36 mm. Adults are on wing from May to September depending on the location.
The larvae feed on seed heads of cereal crops and grasses, especially Phleum pratense. 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 Wheat Head Armyworm sighting in Chicago on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 884th most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Wheat Head Armyworm in Chicago on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Wheat Head Armyworm sightings, Chicago ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Austin (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Wheat Head Armyworm is recorded against all the insects logged in Chicago (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.
