Bug FAQPterospoda nigrescens
Pterospoda nigrescens · Order: Lepidoptera · Family: Geometridae
Pterospoda nigrescens is a moth in the Geometridae family with a wingspan of about 24 mm. It lives at moderate elevations in dry scrub and open woodland, and adults fly at least twice a year, mainly in April and August in Arizona. The caterpillars have been raised on Condalia plants, probably the variety Condalia warnockii var. kearneyana.
Source: Wikipedia
How to recognize it
Pterospoda nigrescens belongs to the moth family Geometridae.
Source: Wikipedia
Size
Its wingspan measures roughly 24 mm.
Source: Wikipedia
What it eats
Larvae have been reared on Condalia species, likely Condalia warnockii var. kearneyana.
Source: Wikipedia
Life cycle
Adults have at least two flight periods each year, primarily in April and August in Arizona.
Source: Wikipedia
When you see it
The species shows two annual flight peaks, mainly in April and August in Arizona.
Source: Wikipedia
Where it is found in the US
Recorded in 3 of 51 states and DC. Most records: Texas, Arizona, New Mexico.
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
Same family (Geometridae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Pterospoda_nigrescens
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.