Bug FAQDusky-patched Dicymolomia
Dicymolomia metalliferalis · Order: Lepidoptera · Family: Crambidae
The dusky-patched Dicymolomia has a wingspan of about 16 mm. Its larvae feed on decaying seed pods of lupine species such as L. albifrons and L. latifolius.
Source: Wikipedia
Size
Wingspan is roughly 16 mm.
Source: Wikipedia
What it eats
Larvae have been recorded eating decaying seed pods of Lupinus species, including L. albifrons and L. latifolius.
Source: Wikipedia
Where it comes from
Native to western North America, spanning southern Vancouver Island, Washington, Oregon, California and western Arizona.
Source: Wikipedia
Where it is found in the US
Recorded in 4 of 51 states and DC. Most records: California, Oregon, Washington, Arizona.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What does the dusky-patched Dicymolomia eat?
The larvae feed on decaying seed pods of lupine species such as L. albifrons and L. latifolius.
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/Dicymolomia_metalliferalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.