Hubbard's Silk Moth

Hubbard's Silk Moth

Syssphinx hubbardi

Daily sighting probability ~10% · With luck
at Saguaro National Park

In 3 days ~20% in a week ~50%

35 Verified sightings at Saguaro National Park From 2019 to 2026
35 In 1 park
September Best month
☀️🌙 Day & Night When it's spotted

About the Hubbard's Silk Moth

Syssphinx hubbardi, or Hubbard's silk moth, is a species of moth in the family Saturniidae. It is found in Mexico and the southern United States. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Saguaro National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Hubbard's Silk Moth in Saguaro National Park?

With luck

About 10% of wildlife watchers report a Hubbard's Silk Moth sighting in Saguaro National Park on a given day, based on 35 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 71st most-seen of the 354 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see a Hubbard's Silk Moth in Saguaro National Park?

September

In that month about 20% of wildlife watchers report a Hubbard's Silk Moth in Saguaro National Park on a given day, against under 5% in January–May and November, the lowest months. That is one of Saguaro National Park's wettest months, with about 50 mm of rain against almost none in May.

What time of day is best to see a Hubbard's Silk Moth?

Between 9 pm and midnight

Across all the parks we cover, that three-hour window holds the most Hubbard's Silk Moth sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.

Where else can you see a Hubbard's Silk Moth?

Only Saguaro National Park, in our data

Saguaro National Park is the only park on Wallace's Line with enough records to rate Hubbard's Silk Moth sightings: about 10% of wildlife watchers there report one on a given day.

Where does the Hubbard's Silk Moth sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Hubbard's Silk Moth is recorded against all the insects logged in Saguaro National Park (35 verified sightings from 2019 to 2026), 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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