Callophrys augustinus “Brown Elfin” Lycaenidae
Glacier National Park, MT
June 20, 2014
Robert Niese
This is a pretty common butterfly here in Montana. You can easily recognize them by their Lycaenid shape and dull metallic-y brown color. These guys don’t have tails like the hairstreaks, but sometimes have a tail-like lobe on their hindwings.
Satyrium saepium “Hedgerow Hairstreak” Lycaenidae
Seeley Lake, MT
July 26, 2014
Robert Niese
An adorable coppery hairstreak that rears its young on our abundant Ceanothus velutinus, or Snowbrush, here in Montana. Snowbrush grows best in open, brushy areas like those created after a fire or in a clearcut. And where there’s Ceanothus you’ll find these adorable Hedgerow Hairstreaks.
Glaucopsyche lygdamus “Silvery Blue” Lycaenidae
Glacier National Park, MT
June 21, 2014
Robert Niese
As with many members of the Lycaenidae family (blues, coppers, and hairstreaks), the caterpillars of this species are tended by ants which provide the vulnerable larvae with protection in exchange for sugary “honeydew” which the caterpillars excrete from their backs. Check it out.
Antheraea polyphemus “Polyphemus Moth” Saturniidae (male)
Missoula, MT
June 11, 2014
Robert Niese
Surprisingly, I found this enormous moth (15 cm wingspan!) in a parking lot on my way into work on the University of Montana campus.
Ectoedemia sericopeza “Norway Maple Seedminer” Nepticulidae
Missoula, MT
September 25, 2014
Robert Niese
These teensy-tiny moths are rarely over 2mm in length and are among some of the smallest lepidopterans in the world. Their larvae, which are equally infinitesimal, feed exclusively on (and within!) the tissues of the Norway Maple (Acer platanoides), an introduced species which lines most of our streets here in Missoula.
Cercyonis pegala "Common Wood-nymph" Nymphalidae
Missoula,MT
September 2, 2013
Robert Niese
Euphydryas editha "Edith’s Checkerspot" Nymphalidae
Seeley Lake, MT
July 26, 2014
Robert Niese
The caterpillars of this species will hibernate overwinter and can do so for many years before metamorphosing into adults.
Orgyia antiqua “Rusty Tussock Moth” caterpillar Lymantriidae (now Lymantriinae)
Tacoma, WA
July 12, 2013
Robert Niese
This species is widely dispersed throughout both hardwood and coniferous forests in North America. Here in the Pacific Northwest, it tends to be restricted to moist, low elevation forests west of the Cascades. The caterpillars of this species are generalists and can eat both conifers and flowering plants.
Fun fact: female tussock moths are flightless and lay their eggs en masse on their cocoon. In order to disperse into the wide world beyond the cocoon they’re born on, freshly-hatched larvae will balloon away on the wind.
Agapeta zoegana “Sulphur Knapweed Moth” Tortricidae
August 14, 2014
Missoula, MT
Robert Niese
These diminutive moths (10mm in length) are obligate parasites of our invasive knapweed (Centaurea maculosa) and were introduced in 1984 as a potential biological control agent.
Antheraea polyphemus “Polyphemus Moth” Saturniidae (male)
Missoula, MT
June 11, 2014
Robert Niese
Surprisingly, I found this enormous moth (15 cm wingspan!) in a parking lot on my way into work on the University of Montana campus.
Northwest Naturalist 