These beautiful moths (and their caterpillars) can be found throughout North America. Adult moths are almost all white on the wings with a beautiful coat of white fur on the thorax. The caterpillars […]

Green stoneflies, or sallflies if you are an angler, are unusual in that most species in the family are green or yellow. They may be mistaken for recently emerged individuals […]

These tank-like beetles are hard to miss, but it’s unlikely you will ever see the chunky C-shaped grubs, who develop in rotting wood of dead or dying hardwoods. During the […]

This beauty is a species of metallic wood-boring beetle or jewel beetle (family Buprestidae). A group so-named because many of its members sport shiny, irridescent colors. Buprestis is a genus of 18 […]

Initially we weren’t sure if this was a Two-tailed Swallowtail or a Western Tiger Swallowtail, but received some help from fellow butterfly enthusiasts. According to David J. Ferguson, Contributing Editor for BugGuide, “The […]

This beautiful moth can be found across much of the northern US and the southwestern states. The larvae feed on a wide variety of woody and herbaceous plants, enabling them to occupy […]

The Cross Orbweaver, named for the white cross on the topside of the abdomen, was introduced to North America from Western and Northern Europe. It now ranges mostly in southern […]

Fritillaries can be very tough to ID, but not this one. The dark one is the female (top) …and since they are mating, there is no question that the other is […]

Marbled Orbweavers are also called Pumpkin Spiders for their typical orange form. But, incredible variation exists. Scroll down to the “Remarks” section to view some stunning examples. Marbles range from Alaska to Newfoundland, south to Oregon, Utah, southern […]

With a wingspan of up to six inches, the adult Polyphemus Moth is the largest species of giant silk moth in Montana …so it should come as no surprise that their caterpillars are pretty […]