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For Insects, Spiders & Their Kin
For the United States & Canada
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Genus Sphenophorus - Billbugs

Billbug - Sphenophorus venatus weevil - Sphenophorus parvulus Rocky Mountain Billbug? - Sphenophorus cicatristriatus Sphenophorus - Sphenophorus venatus Sphenophorus venatus ? - Sphenophorus parvulus Billbug weevil? - Sphenophorus sayi Sphenophorus venatus weevil - Sphenophorus venatus
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 Dryophthorinae
Tribe Rhynchophorini
Subtribe Sphenophorina
Genus Sphenophorus (Billbugs)
Synonyms and other taxonomic changes
Calandra, Calendra
Explanation of Names
Sphenophorus Schönherr 1838
Greek 'wedge-bearer'
65 spp. in our area(1); selected local faunas: 20 spp. in Canada(2), 24 in SC(3), 25 in FL(4), 18 in CA(5), 11 in NH(6),...
Key to spp. in(7)
Only a small proportion of Sphenophorus have three clear-cut, bare, elevated stripes or ridges (australis, cariosus, costicollis, costipennis, incongruus, latinasus, pertinax, robustus, robustior, and villosiventris)(7)
so. Canada to Argentina; also in the Old World (much fewer spp. there)(8)
Fields, wet areas, with host plants
associated with various monocots, incl. grasses (Poaceae) and sedges (Cyperaceae)(1)
some spp. damage turfgrass or corn(1); in NA, the following spp. have been reported to damage turfgrass: S. parvulus, S. minimus, S. venatus, S. inaequalis, S. phoeniciensis, S. cicatristriatus, S. coesifrons, S. apicalis (although many other spp. may occur alongside) (Huang 2008)