Say's Firefly vs Western Glacier Stonefly
Side-by-side species comparison
| Attribute | Say's Firefly | Western Glacier Stonefly |
|---|---|---|
| Scientific Name | Pyractomena angulata | Zapada glacier |
| Order | Coleoptera | Plecoptera |
| Family | Lampyridae | Nemouridae |
| Size | 8-14 mm | 5-8 mm body length |
| Habitat | Wetlands | Mountains |
| Diet | Omnivores | Omnivores |
| Regions | Eastern North America | Glacier National Park, Montana |
| Conservation | Least Concern | Endangered |
Say's Firefly
An early-season firefly with amber-orange flashes seen in spring across eastern North America. It is among the first fireflies to appear each year.
Did You Know?
Its larvae are semi-aquatic and can survive temporary flooding of their habitats.
Western Glacier Stonefly
A cold-specialist stonefly found only in glacier-fed streams in Glacier National Park. It is threatened by the retreat of mountain glaciers.
Did You Know?
It may become one of the first insects driven to extinction by climate change as glaciers disappear.