Helm's Stag Beetle vs Dicromantispa Mantidfly
Side-by-side species comparison
| Attribute | Helm's Stag Beetle | Dicromantispa Mantidfly |
|---|---|---|
| Scientific Name | Geodorcus helmsi | Dicromantispa sayi |
| Order | Coleoptera | Neuroptera |
| Family | Lucanidae | Mantispidae |
| Size | 25-40 mm | 18-28 mm wingspan |
| Habitat | Forests | Forests |
| Diet | Wood Feeders | Omnivores |
| Regions | Oceania (New Zealand - South Island) | Eastern North America |
| Conservation | Near Threatened | Least Concern |
Helm's Stag Beetle
An endemic New Zealand stag beetle found in the forests of the South Island. Males have enlarged mandibles used in fighting. It is a large, flightless beetle that lives in rotting logs in native bush. Several Geodorcus species are found only in New Zealand.
Did You Know?
New Zealand stag beetles are flightless, having lost their ability to fly in the absence of land mammal predators over millions of years of island evolution.
Dicromantispa Mantidfly
A brown mantidfly found across eastern North America in forested habitats. Named after the eminent entomologist Thomas Say.
Did You Know?
Females lay thousands of eggs on stalks, but only larvae that find spider egg sacs survive.