Archips purpurana
In 3 days ~10% in a week ~20%
Archips purpuranus, the omnivorous leafroller moth, is a species of moth of the family Tortricidae. It is found in most of eastern North America. The length of the forewings is 8.5–11 mm for males and 10.5–12.5 mm for females. Adults are on wing from June to July in one generation per year in most of the range.
The larvae are polyphagous and have been recorded feeding on the foliage of a large range of plants, including Rhus, Erigeron annuus, Solidago, Betula (including Betula papyrifera and Betula populifolia), Viburnum, Cornus canadensis, Sedum, Sempervivum, Vaccinium, Lupinus, Quercus macrocarpa, Geranium, Ribes, Sassafras, Maianthemum racemosum, Fraxinus, Fragaria, Malus, Prunus (including Prunus pensylvanica and Prunus virginiana), Rubus (including Rubus plicatus), Spiraea, Populus tremuloides, Salix, Mandragora, Tilia americana and Viola species. They reach a length of 20–30 mm when full grown. 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 an Omnivorous Leafroller sighting in Chicago on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 669th most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Omnivorous Leafroller 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 Omnivorous Leafroller sightings, Chicago ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%) and Montreal (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Omnivorous Leafroller is recorded against all the insects logged in Chicago (9 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.
