Bug FAQSpruce Coneworm Moth
Dioryctria reniculelloides · Order: Lepidoptera · Family: Pyralidae
Also called: Spruce Coneworm
The spruce coneworm moth has a wingspan of about 10 mm. Adults fly from June through August and there is one generation each year. The larvae overwinter as first-instar larvae and pupate in late June to early July.
Source: Wikipedia
Size
Wingspan ranges from 9.5 to 11 mm.
Source: Wikipedia
What it eats
Larvae feed on spruce, Douglas-fir, hemlock, fir and lodgepole pine.
Source: Wikipedia
Life cycle
Pupation occurs in late June and early July.
Source: Wikipedia
When you see it
Adults are on the wing from June to August.
Source: Wikipedia
Where it comes from
It occurs across North America from Nova Scotia to Alaska, east to New York and west to California and New Mexico.
Source: Wikipedia
Where it is found in the US
Recorded in 26 of 51 states and DC. Most records: Pennsylvania, Colorado, New York, Oregon, Washington, Michigan, Montana, Alaska.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When can I see adult spruce coneworm moths?
Adults are active from June through August.
Source: Wikipedia
What trees do the larvae feed on?
The larvae eat spruce, Douglas-fir, hemlock, fir and lodgepole pine.
Source: Wikipedia
How does the spruce coneworm moth survive the winter?
It overwinters as a first-instar larva.
Source: Wikipedia
Same family (Pyralidae)
Indian-Meal MothPlodia interpunctellaCan damage your home
Greater Wax MothGalleria mellonella
Mediterranean Flour MothEphestia kuehniellaCan damage your home
Meal mothPyralis farinalisDamages trees, gardens or crops
Bee MothAphomia sociellaNuisance, not dangerous
Yellow-fringed Dolichomia MothHypsopygia olinalisSources
- Wikipedia: https://en.wikipedia.org/wiki/Dioryctria_reniculelloides
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-26.