Bug FAQSyssphinx montana
Syssphinx montana · Order: Lepidoptera · Family: Saturniidae
The adult has a wingspan of about 62 to 82 mm, with females larger than males. It lives mainly in Mexico and is only rarely seen in southeastern Arizona. Adults are on the wing from mid-July through early August.
Source: Wikipedia
Size
Wingspan ranges from 62 to 82 mm. Males are smaller than females.
Source: Wikipedia
Where it lives
Found in Mexico and occasionally in southeastern Arizona.
Source: Wikipedia
When you see it
Adults are active from mid-July to early August.
Source: Wikipedia
Where it comes from
Its range includes Mexico and rarely southeastern Arizona.
Source: Wikipedia
Where it is found in the US
Recorded in 2 of 51 states and DC. Most records: Arizona, Kansas.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When are adult Syssphinx montana active?
Adults fly from mid-July through early August.
Source: Wikipedia
How large are these moths?
Their wingspan measures between 62 and 82 mm, with females larger than males.
Source: Wikipedia
Where can I find Syssphinx montana?
They occur in Mexico and are rarely seen in southeastern Arizona.
Source: Wikipedia
Same family (Saturniidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Syssphinx_montana
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.