Deidamia inscriptum
In 3 days ~10% in a week ~20%
Deidamia inscriptum, the lettered sphinx, is a species of moth of the family Sphingidae. It is the only member of the genus Deidamia. The species was first described by Thaddeus William Harris in 1839 and the genus was erected by James Brackenridge Clemens in 1859. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | Dallas | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Lettered Sphinx sighting in Dallas on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 1019th 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 Lettered Sphinx in Dallas on a given day, so our monthly data shows no clear season.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Lettered Sphinx sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
5th of 6
Of the 6 cities where we can rate Lettered Sphinx sightings, Dallas ranks 5th at under 5%. The best odds are in Austin (United States, about 10%), Minneapolis [Saint Paul] (United States, under 5%) and Toronto (Canada, under 5%).
Same family: Sphingidae
The closest relatives of the Lettered Sphinx that you can see in Dallas (family Sphingidae, Sphinx Moths) are White-Lined Sphinx (about 10%), Walnut Sphinx (about 10%) and Snowberry Clearwing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lettered Sphinx is recorded against all the insects logged in Dallas (10 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.
