Beautiful both in their immature and adult forms, satin moths were introduced from Europe in 1920 and can now be found across Canada and in the northwestern and northeastern states. Caterpillars eat […]

This is our most widespread silkmoth in the US. It is also one of our largest, with a wingspan of up to 6 inches. Like our other giant silkmoths, males […]

The dot-tailed whiteface is aptly named. Mature males have a black thorax and abdomen, with a prominent, squarish yellow spot on top of the seventh abdominal or “tail” segment. The ivory white […]

Blister beetles in this genus can be found worldwide. In the US, they are more diverse in the west. There are two very different things about these blister beetles — […]

With their metallic bodies and often dark marking on the wings, Jewelwings (genus Calopteryx) are show-stopping stunners. River Jewelwings of either sex can’t be mistaken for any other Rocky Mountain damselfly. Adults emerge […]

There are well over 3,300 species of Ichneumon wasps north of Mexico, making their identification difficult. Placing them in the family is more straightforward. Ichneumons have a lot of segments […]

Spiders in this genus Sergiolus tend to be boldly patterned and colored. These ground hunters range in size from about 6 to 10 mm. There are 16 species in the genus in […]

If not for their fairly long dark legs and antennae, you might not recognize these little guys as insects. Kristi found several of them crawling on a trail in a […]

We are not 100% sure, but believe this may be the Vancouver Looper (Erannis vancouverensis).  We’ve had submissions of the moth in past years—all males. The females have no wings! Vancouver Loopers are found from northwestern British Columbia south […]

We think this may be the Honest Pero (Pero honestari), but this genus is tricky. Members of this New World genus exhibit sexual dimorphism, polymorphism, extreme geographic variation, and a high degree […]