Palos Verdes Blue vs Sand-Case Caddisfly
Side-by-side species comparison
| Attribute | Palos Verdes Blue | Sand-Case Caddisfly |
|---|---|---|
| Scientific Name | Glaucopsyche lygdamus palosverdesensis | Sericostoma personatum |
| Order | Lepidoptera | Trichoptera |
| Family | Lycaenidae | Sericostomatidae |
| Size | 2-3 cm wingspan | 10-14 mm |
| Habitat | Beaches & Coastal | Rivers & Streams |
| Diet | Herbivores | Herbivores |
| Regions | United States | Europe |
| Conservation | Critically Endangered | Least Concern |
Palos Verdes Blue
A tiny blue butterfly endemic to the Palos Verdes Peninsula in Los Angeles County. It was thought extinct in 1983 before being rediscovered in 1994.
Did You Know?
It is considered one of the rarest butterflies in the world, with captive breeding programs helping sustain the population.
Sand-Case Caddisfly
A caddisfly whose larvae build smooth, curved cases entirely from fine sand grains cemented with silk. Adults are dark with hairy wings.
Did You Know?
The curved sand-grain cases built by these larvae are so precisely constructed they resemble tiny miniature architectural works.