Helena Olive Wireworm Beetle vs Purple Loosestrife Beetle
Side-by-side species comparison
| Attribute | Helena Olive Wireworm Beetle | Purple Loosestrife Beetle |
|---|---|---|
| Scientific Name | Tarphius wollastoni | Galerucella calmariensis |
| Order | Coleoptera | Coleoptera |
| Family | Zopheridae | Chrysomelidae |
| Size | 0.3-0.6 cm | 4-5 mm |
| Habitat | Forests | Wetlands |
| Diet | Fungus Feeders | Herbivores |
| Regions | St. Helena | Europe (native), introduced to North America |
| Conservation | Critically Endangered | Least Concern |
Helena Olive Wireworm Beetle
A small beetle endemic to St. Helena in the South Atlantic. It is associated with decaying endemic gumwood trees.
Did You Know?
St. Helena's native gumwood forests have been reduced to a few tiny remnant patches since colonization.
Purple Loosestrife Beetle
A small, yellowish-brown beetle deliberately introduced as a biocontrol agent against invasive purple loosestrife. Adults and larvae feed on leaves and growing tips of the target weed.
Did You Know?
This beetle has been one of the most successful classical biological control agents, dramatically reducing purple loosestrife infestations across North America.