Lettered Sphinx

Lettered Sphinx

Deidamia inscriptum

Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10% in a week ~20%

39 Verified sightings at Toronto
17 In all 2 parks From 2019 to 2026
June Best month
🌅 Crepuscular When it's spotted

About the Lettered Sphinx

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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Point Pelee National Park 🇨🇦 Canada
~10%
2 Great Smoky Mountains National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Austin 🇺🇸 United States
~10%
2 Minneapolis [Saint Paul] 🇺🇸 United States
<5%
3 Toronto 🇨🇦 Canada
<5%
4 Montreal 🇨🇦 Canada
<5%
5 Dallas 🇺🇸 United States
<5%
6 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Lettered Sphinx in Toronto?

Rare

Under 5% of wildlife watchers report a Lettered Sphinx sighting in Toronto on a given day, based on 39 verified sightings from GBIF citizen-science data. It is the 446th most-seen of the 1689 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.

When is the best time to see a Lettered Sphinx in Toronto?

June

In that month about 10% of wildlife watchers report a Lettered Sphinx in Toronto on a given day, against under 5% in July to May, the lowest months.

What time of day is best to see a Lettered Sphinx?

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.

Is Toronto the best place to see a Lettered Sphinx?

3rd of 6

Of the 6 cities where we can rate Lettered Sphinx sightings, Toronto ranks 3rd at under 5%. The best odds are in Austin (United States, about 10%) and Minneapolis [Saint Paul] (United States, under 5%).

Where does the Lettered Sphinx sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Lettered Sphinx is recorded against all the insects logged in Toronto (39 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.

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