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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Rhyssomatus lineaticollis - Milkweed Stem Weevil

Eating milkweeds - Rhyssomatus lineaticollis weevil - Rhyssomatus lineaticollis weevil on milkweed - Rhyssomatus lineaticollis Another milkweed weevil - Rhyssomatus lineaticollis Weevil - Molytinae - Rhyssomatus lineaticollis Beetle - Rhyssomatus lineaticollis Weevil - Rhyssomatus lineaticollis Rhyssomatus sp.? - Rhyssomatus lineaticollis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Curculionoidea (Snout and Bark Beetles)
Family Curculionidae (Snout and Bark Beetles)
Subfamily Molytinae
Genus Rhyssomatus
Species lineaticollis (Milkweed Stem Weevil)
Remarks
Rhyssomatus lineaticollis (Coleoptera), are weevils that primarily feed on the stems of A. syriaca. Adults initially feed on the apical leaves and then, after feeding, female weevils walk to lower parts of the stem and chew several sequential holes in the stem, creating a continuous scar. Females lay a single egg per hole and larvae complete development inside the stem while feeding on pith tissue. Oviposition scar length is an accurate predictor of the number of eggs laid by the adult female. (Agrawal, 2005)