Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Otiorhynchus

Broad-nosed Weevil - Otiorhynchus sulcatus Weevil 1 - Otiorhynchus ovatus Weevil? - Otiorhynchus porcatus Strawberry Root Weevil - Otiorhynchus ovatus Otiorhynchus rugosostriatus Otiorhynchus raucus weevil? - Otiorhynchus raucus Curculionidae, Strawberry Root Weevil, frontal - Otiorhynchus ovatus Otiorhynchus rugosostriatus  - Otiorhynchus rugosostriatus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea
Family Curculionidae (Snout and Bark Beetles)
Subfamily Entiminae (Broad-nosed Weevils)
Tribe Otiorhynchini
Genus Otiorhynchus
Explanation of Names
Otiorhynchus Germar 1822
Numbers
14 spp. in our area (all adventive), of which 11 in Canada; immense genus, ~1,500 spp. in at least 105 subgenera(1)(2)(Hlaváč 2011)
Size
4-11 mm
Identification
snout stout, squarish, widened toward tip; pronotum roundish with pebbled or bumpy surface; elytra color varies from light yellowish-brown to black, surface variously sculptured, rarely smooth; flightless (hind wings absent)
For hi-res images of most of our spp., see(3)(4)(5)

Key to our species in Warner & Negley 1976.
Range
native to the Palaearctic, adventive but widely established in NA north to AK, NWT
Habitat
usually on or near host plant; adults can be present in large numbers in gardens and around the houses and other buildings, and sometimes move inside(6) (e.g., seeking winter shelter)
Season
adults often spend colder months in homes and can be crawling around virtually anytime
Food
larvae and adults are polyphagous herbivores(1)
Life Cycle
one generation per year; overwinters as a larva in soil, or adult in leaf litter (or in homes)
most of NA populations are female-only (parthenogenetic) -- except for O. ligneus, O. meridionalis, & O. porcatus-- although in Europe males of all species are known(7)
Remarks