Mint Moth
Pyrausta aurata · Order: Lepidoptera · Family: Crambidae
Also called: Small Purple & Gold
The mint moth has a wingspan of about 0.7 to 0.8 in and shows purplish-brown forewings with golden yellow markings, while its hindwings are dark with a broad yellow band across the middle. It lives in chalk and limestone grasslands, woodlands, marshes and gardens across most of Europe, North Africa, and a wide stretch of Asia from Siberia to Japan. Adults fly both day and night from April to September and can produce two generations per season in north-west Europe.
Source: Wikipedia
How to recognize it
Forewings are purplish-brown with golden yellow spots, and hindwings are dark with a single wide yellow band across the centre.
Source: Wikipedia
Size
Wingspan measures 18 to 20 mm, roughly 0.7 to 0.8 in.
Source: Wikipedia
What it eats
Larvae feed mainly on mint species such as spearmint and round-leaf mint, but also on marjoram, sage, lemon balm, catnip and Calamintha.
Source: Wikipedia
Life cycle
In the UK it has two broods, one in May-June and another in July-August. Across north-west Europe adults are present from April to the end of September and can produce two generations each season.
Source: Wikipedia
When you see it
Adults are active both during the day and at night. In north-west Europe they can be seen from April through September.
Source: Wikipedia
Where it comes from
Occurs throughout most of Europe, North Africa and North Asia.
Source: Wikipedia
Lookalikes
It resembles the slightly larger Pyrausta purpuralis, which has a broader post-median band usually broken into at least three yellow spots.
Source: Wikipedia
Questions people ask
When can I see mint moths?
Adults fly from April to September, both day and night, with two generations in north-west Europe.
Source: Wikipedia
How can I tell a mint moth from similar species?
Look for purplish-brown forewings with golden yellow markings and a single broad yellow band on dark hindwings; the similar Pyrausta purpuralis has a larger size and a band split into several spots.
Source: Wikipedia
Same family (Crambidae)
Box Tree MothCydalima perspectalisDamages trees, gardens or crops
Celery Leaftier MothUdea rubigalisDamages trees, gardens or crops
Elegant Grass-veneerMicrocrambus elegans
Hawaiian Beet Webworm MothSpoladea recurvalisDamages trees, gardens or crops
Garden Grass-veneerChrysoteuchia culmellaDamages trees, gardens or crops
Bluegrass Webworm MothParapediasia teterrellusDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Mint_moth
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.