Northern Blue
(Lycaeides
idas)
| Butterflies of North America |
| Photo of northern blue, wing span, identification, life history, flight, caterpillar hosts, adult food, habitat, range, conservation, management needs |
| Digital Atlas of Idaho |
| Photo, description (caterpillar and adult), range, habitat, diet, ecology, reproduction |
| Dave Powell's Butterfly Site |
| Photos of northern blue |