''Ceutorhynchus americanus'' is a species of true weevils in the tribe

Ceutorhynchini Ceutorhynchini is a true weevil tribe in the subfamily Baridinae. Genera The following genera are included: *'' Aiphonsinus'' Korotyaev, 2001 *'' Allosirocalus'' Colonnelli, 1983 *'' Amalorrhynchus'' Reitter, 1913 *'' Amalus'' Schoenherr, 1 ...

. It is found in

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

, United States, as well as

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

, Canada. It feeds on the stems of '' Raphanus raphanistrum''. Feeding habits and host plants Seeing as Raphanus species are not native in the same distribution as the listed C. americanus' native distribution one can assume this species' main host plant isn't Raphanus sp. but merely able to generally browse on Raphanus sp. It has also been observed by amateur observers on garlic mustard, fawn lily, and day lily. More studies are needed to learn the feeding habits of this species. Though species in this

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

have been looked at as a

biological control Biological control or biocontrol is a method of controlling pests, whether pest animals such as insects and mites, weeds, or pathogens affecting animals or plants by using other organisms. It relies on predation, parasitism, herbivory, or o ...

against Garlic mustard in the past.

References

External links

* *
''Ceutorhynchus americanus''
at insectoid.info Ceutorhynchini Beetles described in 1937 Insects of Canada Beetles of the United States {{Baridinae-stub