Stridulating Passalid vs Inocellia Snakefly
Side-by-side species comparison
| Attribute | Stridulating Passalid | Inocellia Snakefly |
|---|---|---|
| Scientific Name | Passalus punctatostriatus | Inocellia crassicornis |
| Order | Coleoptera | Raphidioptera |
| Family | Passalidae | Inocelliidae |
| Size | 30-42 mm | 10-15 mm |
| Habitat | Woodlands | Woodlands |
| Diet | Wood Feeders | Predators |
| Regions | Central America, South America | Europe |
| Conservation | Least Concern | Least Concern |
Stridulating Passalid
A large, shiny black bess beetle with prominently punctate-striate elytra and strong mandibles. It lives in family groups within decaying logs. Known for producing a wide repertoire of stridulatory sounds for communication.
Did You Know?
Adults produce sounds by rubbing specialized ridges on the abdomen against the underside of the wings, creating at least 14 distinct calls.
Inocellia Snakefly
A snakefly belonging to the family Inocelliidae, distinguished from Raphidiidae by the absence of ocelli. It is found in European woodlands where it hunts under bark.
Did You Know?
Inocelliid snakeflies lack the simple eyes (ocelli) found in other snakefly families, relying solely on compound eyes.