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Small Milkweed Bug, nymph (Lygaeus kalmii)

  • September 24, 2019

These colorful true bugs can be found throughout the U.S. and southern Canada. Adults feed on milkweed seeds and nectar from... Continue Reading

Orb Weaver Spider (genus Araneus)

Many people refer to all orb weaver spiders as “Cat-Faced Spiders” or “Barn Spiders” …but we believe this species is THE... Continue Reading

Sixspotted Orbweaver (Araniella displicata)

As far as orb weavers go, this species is small (only about .25 to .3 inches) …but they certainly make up... Continue Reading

Arhopalus asperatus (no common name)

Photo by Glenn Marangelo on 9/16/19 in Missoula, MT. Continue Reading

October Thorn (Tetracis jubararia)

This beautiful moth can be found from mid-August into November (depending on location and elevation). The caterpillars feed on maple, alder,... Continue Reading

Bald-faced Hornets (Dolichovespula maculate)

While referred to as a “hornet”, Bald-Faced Hornets are actually a species of yellowjacket wasp. In the U.S., they are most... Continue Reading

Polyphemus Moth Caterpillar (Antheraea polyphemus)

  • September 6, 2019

With a wingspan of up to 6 inches, the adult Polyphemus Moth is the largest species of giant silk moth in... Continue Reading

Western Tiger Swallowtail (Papilio ratulus)

It was a quiet year for swallowtails this year, so it’s good to see one of next year’s crop. Adult Western... Continue Reading

Great Spangled Fritillary, female (Speyeria cybele)

With a wingspan of up to 4 inches, the Great Spangled is one of our larger Greater Fritillaries (genus Speyeria) in MT.... Continue Reading

Spotted Tussock Moth Caterpillars (Lophocampa maculate)

Identification of these two, very different looking, caterpillars had us stumped for a bit …but we believe these are actually the... Continue Reading