Showing posts with label Hollyhock Weevil. Show all posts
Showing posts with label Hollyhock Weevil. Show all posts

2006-06-19

Insect Profile: Apion (Rhopalapion) longirostre, Hollyhock weevil



Apion (Rhopalapion) longirostre, Hollyhock weevil, on, of all things, my hollyhocks in the sunny border at Garden #4 in Flatbush. The upper photo shows a single male, I believe, on a leaf. The lower photo shows a pair in their typical posture, ie: mating. The female has her (even longer) snout buried in the flower bud.
Photos taken: June 4, 2006

The taxonomy of Apion (Rhopalapion) longirostre, common name Hollyhock weevil or (sometimes) Black vine weevil, is confusing. I've seen it listed as being in the Family Brentidae, the straight snout weevils, the Apionidae or Apioninae, and the Curculionidae. Whatever! They are in the order Coleoptera, the beetles.

The genus Apion seem to generally have long snouts. Their antenna are jointed and located halfway along the snout. A. longirostre is distinguished from other Apion species by its orange legs.

Their native range of A. longirostre is in Eurasia, originally limited to southern and southeastern Europe and Asia Minor. It has since spread much further afield there. It was first detected in North America in Georgia in 1914. Within fifty years it had spread across the continent.