Sunburst Diving Beetle vs Cabbage Seed Weevil
Side-by-side species comparison
| Attribute | Sunburst Diving Beetle | Cabbage Seed Weevil |
|---|---|---|
| Scientific Name | Thermonectus marmoratus | Ceutorhynchus obstrictus |
| Order | Coleoptera | Coleoptera |
| Family | Dytiscidae | Curculionidae |
| Size | 12-15 mm | 2.5-3 mm |
| Habitat | Ponds & Lakes | Farmland |
| Diet | Omnivores | Seed Feeders |
| Regions | Southwestern North America, Mexico | Europe |
| Conservation | Least Concern | Least Concern |
Sunburst Diving Beetle
A striking yellow-and-black spotted diving beetle from the American Southwest and Mexico. Its larvae have been discovered to possess bifocal lenses in their eyes.
Did You Know?
Its larvae are the first animals discovered to have true bifocal eyes, with two focal lengths in a single lens.
Cabbage Seed Weevil
A small grey weevil that is a major pest of oilseed rape. Larvae feed inside seed pods, consuming developing seeds. Causes significant economic losses across Europe.
Did You Know?
Entry holes made by egg-laying females also allow the larvae of the brassica pod midge to enter, compounding damage.