Texas Stygobiontic Diving Beetle vs Western Grannom Caddis
Side-by-side species comparison
| Attribute | Texas Stygobiontic Diving Beetle | Western Grannom Caddis |
|---|---|---|
| Scientific Name | Psychopomporus felipi | Brachycentrus occidentalis |
| Order | Coleoptera | Trichoptera |
| Family | Dytiscidae | Brachycentridae |
| Size | 1.5-2 mm | 9-12 mm |
| Habitat | Indoors | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | United States | Europe |
| Conservation | Data Deficient | Least Concern |
Texas Stygobiontic Diving Beetle
A groundwater-dwelling diving beetle from the Edwards-Trinity Aquifer in Texas. It was the first stygobiontic diving beetle described from North America.
Did You Know?
Its genus name means 'guide of the dead,' referencing its underworld habitat.
Western Grannom Caddis
A widespread European caddisfly forming mass emergences in spring on alkaline rivers. Larvae build four-sided tapering cases and filter-feed in riffles.
Did You Know?
Spring Grannom hatches on English chalk streams can darken the sky with millions of emerging adults.