Pasimachus Flat Ground Beetle vs Long-tailed Dance Fly
Side-by-side species comparison
| Attribute | Pasimachus Flat Ground Beetle | Long-tailed Dance Fly |
|---|---|---|
| Scientific Name | Pasimachus depressus | Rhamphomyia longicauda |
| Order | Coleoptera | Diptera |
| Family | Carabidae | Empididae |
| Size | 22-30 mm | 5-8mm |
| Habitat | Deserts & Drylands | Ponds & Lakes |
| Diet | Predators | Predators |
| Regions | Southeastern United States | North America |
| Conservation | Least Concern | Least Concern |
Pasimachus Flat Ground Beetle
A large, broad, flattened shiny black beetle with massive mandibles and distinctive blue-margined elytra. It is one of the most imposing ground beetles in North America.
Did You Know?
Its immensely powerful mandibles can easily pierce through the tough exoskeleton of other beetles, and it has been observed killing and eating June bugs and other scarabs.
Long-tailed Dance Fly
A small dark fly where females inflate their legs with air to appear larger during mating swarms. Males present nuptial gifts.
Did You Know?
Females inflate their legs with air bubbles to look larger and more impressive to choosy males in mating swarms.