Pissodes sp. “Conifer Bark Weevil” Curculionidae
Lake Inez, MT
May 27, 2017
Robert Niese
Conifer bark beetles in the genus Pissodes are relatively common, harmless parasites of many tree species. In the east, however, they are a major threat to Eastern White Pine where they drastically reduce growth and recruitment of young trees.
Sisyrinchium montanum “Montana Strict Blue-eyed-grass” Iridaceae
Missoula, MT
May 27, 2017
Robert Niese
It’s easy to miss these little, unassuming members of the iris family. As their name suggests, at first glance they look very much like grass, but their showy purple blooms give them away quickly. Various species of Blue-eyed-grass grow throughout North America, where they tend to be found in wet or vernally wet meadows, grasslands, and irrigation ditches. I’ve been walking by these plants every day for months, but I didn’t even notice until they started to bloom!
Sisyrinchium montanum “Montana Strict Blue-eyed-grass” Iridaceae
Missoula, MT
May 27, 2017
Robert Niese
It’s easy to miss these little, unassuming members of the iris family. As their name suggests, at first glance they look very much like grass, but their showy purple blooms give them away quickly. Various species of Blue-eyed-grass grow throughout North America, where they tend to be found in wet or vernally wet meadows, grasslands, and irrigation ditches. I’ve been walking by these plants every day for months, but I didn’t even notice until they started to bloom!
Calligrapha verrucosa “Warty Willow Leaf Beetle” Chrysomelidae
Missoula, MT
May 26, 2016
Robert Niese
I couldn’t decide which photo i liked best, so I had to post another portrait shot of this lovely beetle. The genus name “Calligrapha” is a reference to the beautiful calligraphic script on the backs of many species. This species’s coloration is not quite as script-like, but it definitely still appears painted. These beetles are most common in the Northern Rockies of Montana, Alberta, and Saskatchewan, but, according to some older sources, their range is far broader, stretching from Nebraska to California to Alaska. If you have photographs of these beetles please contact me to supplement our scientific understanding of their distribution
Calligrapha verrucosa “Warty Willow Leaf Beetle” Chrysomelidae
Missoula, MT
May 26, 2016
Robert Niese
The genus name “Calligrapha” is a reference to the beautiful calligraphic script on the backs of many species. This species’s coloration is not quite as script-like, but it definitely still appears painted. These beetles are most common in the Northern Rockies of Montana, Alberta, and Saskatchewan, but, according to some older sources, their range is far broader, stretching from Nebraska to California to Alaska. If you have photographs of these beetles please contact me to supplement our scientific understanding of their distribution!
Chrysomela scripta “Cottonwood Leaf Beetle” Chrysomelidae
Missoula, MT
April 22, 2016
Robert Niese
These lovely beetles can spend their entire life cycles living off of a single poplar or cottonwood tree. Females lay their eggs in clusters on the undersides of leaves. Those eggs hatch and the larvae begin feeding on the leaf tissues until nothing but a skeleton of veins remains. Then, they pupate into adults which will continue the process of defoliating the tree by eating the thick veins and midribs left behind by the larvae. Some small saplings can be killed by a particularly hungry population of breeding Cottonwood Leaf Beetles. This species may not be present in the PNW west of the Cascades. If you discover them there, please let me know!
Oxyopes scalaris “Western Lynx Spider” Oxyopidae
Missoula, MT
May 6, 2016
Robert Niese
Lynx spiders are some of my favorite arachnids! They’re stealthy, fast, agile and ferocious predators, some of which specialize on other spiders! Oxyopes scalaris is virtually the only species of lynx found in the PNW, however. It can be found in just about any habitat from the coast to the Rockies and as far north as BC. One additional species, the Striped Lynx (O. salticus) can be found along the coast from California through Oregon and, rarely, in southern Washington.
Taraxacum officinale “Common Dandelion” Asteraceae (Compositae)
Missoula, MT
May 2, 2016
Robert Niese
Generic, but beautiful nonetheless. Each of those tiny wind dancers is actually a fruit called an achene. Each achene arose from an individual flower of which there are hundreds in a single dandelion head (actually there are only 50-200 flowers per head, but “hundreds” sounds better) . This is where the family got its old name, “Compositae.” Each of their composite “flowers” are made up of loads of tiny individual flowers. So next time your lover asks for flowers, pick them a couple dandelions and astound them with an offering of many hundreds of flowers instead of a measly dozen roses.
Thanatophilus lapponicus “Northern Carrion Beetle” Silphidae
April 2, 2016
National Bison Range, MT
Robert Niese
Photographed my first Silphid last week and, I must say, it was a horrendously smelly experience. These carrion beetles appear to prefer long-dead organisms, particularly reptiles and amphibians, and this little guy had apparently been hanging out in an extremely ripe carcass. I had to hold my breath every time I went in for a close-up! These beetles often overwinter in these carcasses, consuming the rotting flesh and maggots living there, until emerging at the first signs of spring. I might venture to guess that this is exactly what this individual did all winter, which might have contributed to its particular odor.
Pandemis pyrusana “Pandemis Leafroller Moth” Tortricidae
Clinton, MT
July 25, 2015
Robert Niese
Pandemis leafrollers are common in the west and are considered a pest on commercial apple, cherry, plum, and pear trees. As larvae, they roll up the sides of leaves into a tube along the mid-vein creating a shelter from predators. Larvae born early in the summer will pupate inside these shelters, but late summer larvae overwinter under bark before emerging to feed on fresh buds in the early spring. In addition to feeding on commercial fruit trees, this species is also known to chow down on alder (Alnus), willow (Salix), birch (Betula), dogwood (Cornus), aspen (Populus tremuloides), currants (Ribes), roses (Rosa), and honeysuckle (Lonicera), all of which are very common here in western Montana.
Northwest Naturalist 