Giant Black Water Beetle vs Northern Flower Longhorn
Side-by-side species comparison
| Attribute | Giant Black Water Beetle | Northern Flower Longhorn |
|---|---|---|
| Scientific Name | Hydrophilus triangularis | Pachyta lamed |
| Order | Coleoptera | Coleoptera |
| Family | Hydrophilidae | Cerambycidae |
| Size | 34-40 mm | 12-20 mm |
| Habitat | Ponds & Lakes | Forests |
| Diet | Predators | Root Feeders |
| Regions | North America | Scandinavia, Russia, Siberia, northern Japan |
| Conservation | Least Concern | Least Concern |
Giant Black Water Beetle
The largest water beetle in North America, with a shiny black oval body. Larvae are voracious predators while adults are mainly plant feeders.
Did You Know?
It carries a bubble of air beneath its body like a silvery film, which it replenishes at the surface.
Northern Flower Longhorn
A robust flower longhorn with black elytra bearing variable yellow-orange markings, found in boreal and montane conifer forests. Larvae develop in roots of spruce and pine. Adults visit flowers in forest clearings during midsummer.
Did You Know?
The species name lamed refers to the Hebrew letter, due to the L-shaped marking on each elytron.