Thin-neck Cave Beetle vs Trico Mayfly
Side-by-side species comparison
| Attribute | Thin-neck Cave Beetle | Trico Mayfly |
|---|---|---|
| Scientific Name | Pseudanophthalmus parvicollis | Tricorythodes stygiatus |
| Order | Coleoptera | Ephemeroptera |
| Family | Carabidae | Leptohyphidae |
| Size | 4-5 mm | 3-6 mm |
| Habitat | Caves | Rivers & Streams |
| Diet | Detritivores | Detritivores |
| Regions | United States | North America |
| Conservation | Endangered | Least Concern |
Thin-neck Cave Beetle
A narrowly endemic cave beetle with a distinctively slender pronotum. It inhabits caves in the Appalachian karst region.
Did You Know?
Its narrow neck (pronotum) helps it squeeze through tiny fissures in cave rock.
Trico Mayfly
A tiny mayfly that forms enormous morning spinner falls over calm streams and rivers. Males have distinctive white bodies with black thoraxes.
Did You Know?
Trico spinner falls create such dense blankets of spent mayflies on the water surface that trout gorge themselves to satiation.