Photo of the Week – October 26, 2012

The plains lubber (Brachystola magna) is Nebraska’s largest grasshopper.  At about 2 1/4 inches long, and brightly colored, it’s hard to mistake for other species.  In fact, of the 108 grasshopper species in Nebraska, the plains lubber is the only one that is not in the family Acrididae.  Truly a unique individual.

The plains lubber grasshopper. The Nature Conservancy’s Niobrara Valley Preserve.

Grasshoppers tend to have a bad reputation among many farmers and ranchers because they’re seen as competitors to livestock or as damaging feeders on crops.  In truth, only a handful of grasshopper species cause any significant “damage” to agricultural crops or pastures.  You’d think that a grasshopper the size of a lubber would eat an awful lot of grass, but in fact, the lubber primarily eats the leaves of wildflowers many people would consider weeds – especially annual sunflowers, but also kochia, hoary vervain, and prickly lettuce.  Hardly a pest, if you’re a rancher, though I hear it can sometimes be hard on cotton crops down south.

Lubbers are mostly found in the western portion of Nebraska, in mixed-grass and shortgrass prairie.  Because they have very short wings, they’re unable to fly, but are sometimes seen “migrating” on foot in large numbers.

The information I used for this post came mostly from The Grasshoppers of Nebraska, by Matthew Brust, Wyatt Hoback, and Robert Wright.It’s 

Ants in Restored Prairie – Part 2 of our 2012 Insect Week Results

As promised, here is the second half of the results from our insect week back in July.  Back in September, I reported that it appears bees are using our restored prairies much as they do our remnant prairies.  That’s particularly important because our prairie restoration objective is to functionally enlarge and reconnect our remnant prairies by restoring the cropland around and between them.  That objective can only be reached if insects and other creatures in our remnant prairies are using restored areas as habitat.

Besides bees, the other group we focused on during our insect week was ants.  James Trager (biologist and naturalist at the Shaw Nature Reserve in Missouri) and Laura Winkler (a graduate student at South Dakota State University) were here to help us start an inventory of the ants in our prairies and – more importantly – to begin evaluating our restored prairies as ant habitat.  As with the bees, there’s still much to learn, but the news so far is good.

Mound building ants (Formica montana) tending aphids on bull thistle. Platte River Prairies, Nebraska.

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