Helcystogramma chambersella
In 3 days ~10% in a week ~20%
Helcystogramma chambersella is a moth in the family Gelechiidae. It was described by Mary Murtfeldt in 1874. It is found in North America, where it has been recorded from Pennsylvania, Illinois, Ohio, South Carolina, Tennessee, Louisiana, Mississippi, Florida, Oklahoma, Missouri, Texas, Arizona and California.
The length of the forewings is 3.5–5 mm. Adults have been recorded on wing from April to September. The larvae feed on Ambrosia artemisiifolia, Ambrosia confertifolia and Ambrosia ptilostachya. 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 Chambers' Twirler sighting in Dallas on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 1213th most-seen of the 1412 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 a Chambers' Twirler in Dallas on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Chambers' Twirler sightings, Dallas ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Houston (United States, under 5%).
Same family: Gelechiidae
The closest relatives of the Chambers' Twirler that you can see in Dallas (family Gelechiidae, Twirler Moths) are Red-Necked Peanutworm Moth (about 10%), Anacampsis fullonella (about 10%) and Polyhymno Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chambers' Twirler is recorded against all the insects logged in Dallas (6 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.
