The Backyard Arthropod Project

Sam found this one under her crib on May 27. It’s a rather striking gold-colored beetle with intricate tracery on the wing covers.

This is certainly one of the Calligrapha leaf beetles[1]. Based on the dark green pronotum (the plate between the head and the wing covers), it looks like it is related to Calligrapha alni, the Russet Alder Leaf Beetle. I’m not so sure it is that exact species, though. While the pattern on the wing covers is very close, the examples in Bug Guide show more of a rusty coloration, and a bit less gold.

Continue reading ‘Calligrapha Leaf Beetle’ »

This is one of two water striders that I caught on the little stream that runs alongside of our road. They are normally almost impossible to catch, but I spotted a pair that was mating. They were moving pretty slowly, and I was able to corner them up against some rocks and nudge them into my collecting jar. They unfortunately stopped mating by the time I got them home, so I couldn’t get a picture of them both at once.

Continue reading ‘Water Striders’ »

This one smacked me in the back of the neck while I was working in the yard the weekend of May 24, and got tangled up in the hair on my upper back until I grabbed it and pulled it out.

I then noticed there were several others flying about, so they are obviously something really common. It looks exactly like a Red Turpentine Beetle, Dendroctonus valens. This is a pretty likely identification, because (a) they are well-known pests of pine trees, (b) there is a pine plantation just behind our house, and (c) they emerge as adult beetles very early in the spring.

Continue reading ‘Red Turpentine Beetle’ »

Back on March 30, there was a rare sunny, not-quite-freezing day, and we took the opportunity to take a walk down the road. On the shoulder of the road, right next to our yard, we spotted this caterpillar:

Continue reading ‘St. Lawrence Tiger Moth Caterpillar (?)’ »

If you turn over any given rock in Michigan, you are likely to find one of these:

This is a “stone centipede”, order Lithobiomorpha, so called because that’s what they live under[1]. They run like water, flowing around obstacles and into holes in a way that’s very much like the way a stream of water flows, and are kind of hard to catch. On top of the speed, they are slippery, and their dozens of legs are very good at forcing them through crevices, or out from between your fingers. Even their antennae have a disturbingly fluid nature, flowing over surfaces and contorting in a way that is more like what you would expect from tentacles than from antennae.

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While coming up the hill on my way home from work[1], I spotted what looked, at first, like a medium-sized ant. It didn’t look quite right, though, so I caught it and brought it home. It turned out to be this:

Continue reading ‘Ant-Mimic Jumping Spider’ »

Water boatmen, like this one, are all over the place. They can fly, so they end up in bodies of water ranging from full-blown lakes, to puddles and birdbaths. This particular one was at the mouth of Cole’s Creek, just down the road from our house.

Continue reading ‘Water Boatman’ »

While cleaning up some stuff in the basement, out of the corner of my eye I spotted something bounding up in the air. And by “bounding”, I mean getting up about two feet off the floor. So I went to investigate, and found this:

Continue reading ‘Camel Cricket’ »

The back part of our property drains into Cole’s Creek, which empties into Portage Lake about a mile to the west of us. It’s a pretty substantial stream, and one of the better places for catching smelt[1]. S_ has been going down there from time to time to check if the smelt run has started, so last weekend she suggested that we all go there to poke around in a stream bigger than the one beside the house and see what we could find. We probably didn’t find anything that isn’t in our little micro-creek[2], but we did find some photograph-worthy specimens. Like these guys:

Continue reading ‘Water Louse - Asellus’ »

April 4 was pretty warm[1], so we went down to the Pilgrim River just east of Houghton to see if the walking trails beside the river had melted off enough to be passible[2]. While we were there, we noticed that there were small, black insects hanging out on the wooden bridge railings

Continue reading ‘Winter Stoneflies’ »