Helm's Stag Beetle vs Dusky Cockroach
Side-by-side species comparison
| Attribute | Helm's Stag Beetle | Dusky Cockroach |
|---|---|---|
| Scientific Name | Geodorcus helmsi | Periplaneta nigra |
| Order | Coleoptera | Blattodea |
| Family | Lucanidae | Blattidae |
| Size | 25-40 mm | 25-32 mm |
| Habitat | Forests | Forests |
| Diet | Wood Feeders | Herbivores |
| Regions | Oceania (New Zealand - South Island) | Sub-Saharan Africa |
| Conservation | Near Threatened | Not Evaluated |
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.
Dusky Cockroach
A dark-colored cockroach closely related to the American cockroach. It inhabits tropical forests across Africa.
Did You Know?
It can often be found sharing habitats with the American cockroach in African port cities.