Hemlock Woolly Adelgid vs Madeiran Large White
Side-by-side species comparison
| Attribute | Hemlock Woolly Adelgid | Madeiran Large White |
|---|---|---|
| Scientific Name | Adelges tsugae | Pieris brassicae wollastoni |
| Order | Hemiptera | Lepidoptera |
| Family | Adelgidae | Pieridae |
| Size | 0.8-1.5 mm | 5-6 cm wingspan |
| Habitat | Forests | Forests |
| Diet | Sap Feeders | Herbivores |
| Regions | Asia, North America | Portugal |
| Conservation | Not Evaluated | Critically Endangered |
Hemlock Woolly Adelgid
A devastating invasive pest of eastern hemlock in North America, originally from East Asia. It feeds at the base of needles, killing branches and eventually the tree.
Did You Know?
It has killed millions of hemlocks from Georgia to Maine since its detection in the 1950s.
Madeiran Large White
A subspecies of the large white butterfly that was endemic to Madeira. It has not been reliably recorded since the 1970s and may be extinct.
Did You Know?
Pesticide use and introduced parasitoid wasps are believed to have driven it to the brink of extinction.