White-lined sphinx Moths are one of the most abundant hawk moths in North America, having a wide geographic range (from southern Canada into Central America). They occupy a wide variety […]

These little weevils have been released in MT as a form of biological control to fight against Dalmatian Toadflax. The adults (pictured here) emerge from the plant stems in the […]

These iridescent little beetles are yet another biological control species introduced to combat noxious weeds in MT. This time, the host plant is St. Johnswort. Females will lay up to […]

Blake and Ollie found this sizable critter in a parking lot in Helena. We were happy to inform them that they had found a Predaceous Diving Beetle (in the genus Dytiscidae). […]

These rather large moths can be found all across southern Canada and the United States. They tend to be more common in the east since their larvae bore into the […]

Identifying Tussock Moth caterpillars to genus is not too hard. Getting them to the exact species can be a bit more challenging. We believe this is the Variable Tussock Moth […]

These small to medium sized butterflies range from central AK and the northern Yukon to southern CA, AZ and NM. To the east, they can be found all the way […]

These photos are of a Deer Fly in the genus Chrysops. We believe it is the species Chrysops mitis. On different websites, we saw the common name listed for this species as “Benign […]

These beautifully patterned moths can be found across much of the US, except for the southwestern states. Since they are found across a wide range, the caterpillars are capable of […]

These gorgeous caterpillars were discovered during the Creative Creatures camp with the Montana Natural History Center. They all sport a “horn,” but look different depending on what stage they are […]