Bug FAQClay-colored Billbug
Sphenophorus aequalis · Order: Coleoptera · Family: Dryophthoridae
Also called: Clay-coloured Billbug, Clay-coloured Billbug Weevil
The clay-colored billbug is called Sphenophorus aequalis. It occurs in North America. Its native range is North America.
Source: Wikipedia
How to recognize it
The species is named Sphenophorus aequalis, the clay-colored billbug.
Source: Wikipedia
Where it lives
It is found in North America.
Source: Wikipedia
Where it comes from
Its native range is North America.
Source: Wikipedia
Where it is found in the US
Recorded in 37 of 51 states and DC. Most records: California, Illinois, Utah, Minnesota, Iowa, Wisconsin, Nebraska, Colorado.
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
Same family (Dryophthoridae)
Rice WeevilSitophilus oryzaeCan damage your home
Wheat WeevilSitophilus granariusDamages trees, gardens or crops
Red Palm WeevilRhynchophorus ferrugineusDamages trees, gardens or crops
Hunting BillbugSphenophorus venatus
Cocklebur WeevilRhodobaenus quinquepunctatus
South American Palm WeevilRhynchophorus palmarumDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Sphenophorus_aequalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.