Asian Proceratium vs Western Grannom Caddis
Side-by-side species comparison
| Attribute | Asian Proceratium | Western Grannom Caddis |
|---|---|---|
| Scientific Name | Proceratium japonicum | Brachycentrus occidentalis |
| Order | Hymenoptera | Trichoptera |
| Family | Formicidae | Brachycentridae |
| Size | 2.5-3 mm | 9-12 mm |
| Habitat | Forests | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Japan, Korea, Eastern China | Europe |
| Conservation | Least Concern | Least Concern |
Asian Proceratium
A small cryptic ant found in Japanese and East Asian forests with the characteristic forward-curving gaster. It is rarely collected due to its deep-soil nesting habits.
Did You Know?
The genus name Proceratium means 'forward horn,' referring to the unusual way their abdomen points forward.
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.