Posts tagged with speargrass weevil

Speargrass weevils thriving on Mana Island

  • A Wellington speargrass weevil browses on an Aciphylla squarrosa leaf, Mana Island. Image: Colin Miskelly, Te Papa
  • Speargrass (Aciphylla squarrosa) in flower, Mana Island, November 2015. Image: Colin Miskelly, Te Papa
  • Feeding sign left by a Wellington speargrass weevil after browsing on an Aciphylla squarrosa flowerstalk, Mana Island, November 2015. Image: Colin Miskelly, Te Papa
  • Aerial view of the west coast of Mana Island, January 2015. Speargrass weevils were released at the left-centre of the image, between the track and the cliff-top. Image: Colin Miskelly, Te Papa

Weevils get a lot of bad press. A few species are serious crop pests or despoilers of cereal products, and they give the rest of the family a bad name. In New Zealand, a dozen or so weevil species and populations are recognised as being threatened with extinction, and Wellington speargrass weevils (Lyperobius huttoni) are… Read more »

Past and present fauna of Mt Owen, north-west Nelson

A speargrass weevil (Lyperobius clarkei) on an on the speargrass Aciphylla ferox speargrass.

As well as impressive plants, Mount Owen and the Marino Mountains are also zoologically interesting. The wet weather may have prevented us reaching the summit of Mount Owen but it did bring out the slugs and snails. We spotted a giant leaf-veined slug (Amphikonophora gigantea) beside the track on the lower flanks of the mountain…. Read more »