Deidamia inscriptum
In 3 days ~20% in a week ~30%
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 |
With luck
About 10% of wildlife watchers report a Lettered Sphinx sighting in Austin on a given day, based on 83 verified sightings from GBIF citizen-science data. It is the 378th most-seen of the 1624 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
March and April
In those months about 10% of wildlife watchers report a Lettered Sphinx in Austin on a given day, against under 5% in May to February, the lowest months.
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.
Yes
Of the 6 cities where we can rate Lettered Sphinx sightings, Austin has the highest daily chance: about 10%. Next come 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 Austin (family Sphingidae, Sphinx Moths) are White-Lined Sphinx (about 20%), Walnut Sphinx (about 10%) and Vine Sphinx (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 Austin (83 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.
