Snailcase Bagworm vs Glandon Blue
Side-by-side species comparison
| Attribute | Snailcase Bagworm | Glandon Blue |
|---|---|---|
| Scientific Name | Apterona helicoidella | Agriades glandon |
| Order | Lepidoptera | Lepidoptera |
| Family | Psychidae | Lycaenidae |
| Size | Case about 5-6 mm; male wingspan 10 mm | 20-26 mm wingspan |
| Habitat | Grasslands | Mountains |
| Diet | Omnivores | Nectar Feeders |
| Regions | Europe, Asia Minor, introduced to North America | Alps, Pyrenees, Rocky Mountains |
| Conservation | Least Concern | Least Concern |
Snailcase Bagworm
A tiny bagworm moth whose larva builds a coiled, snail-shell-shaped case from silk and sand grains. It reproduces entirely by parthenogenesis in most of its range.
Did You Know?
Males are almost never found; most populations consist entirely of females reproducing without mating.
Glandon Blue
A tiny high-altitude blue butterfly with distinctive underside spotting. It flies close to the ground in exposed alpine habitats.
Did You Know?
It has been recorded flying at over 3600 meters in the Alps.