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:
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.
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:
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.
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:
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:
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
An accidental capture
So, while we were capturing the Gammarus for last week’s entry, we scooped up some water from the stream into a jar to put them in. In the process, since the stream was so shallow, we got some debris off of the bottom into the jar, too. Then, when we got it back to the house and started looking at what we had, S_ noticed that one of the bits of debris was oddly symmetrical and had a hole in one end[1]. So, we put it into the petri dish along with the amphipods, and waited to see if anything came out. Something did:
Not really a freshwater shrimp
Last Sunday, it was pretty warm, and S_ suggested that it would be a good day to take Sam down to the stream[1] to turn over some rocks to see what was underneath[2]. So, I grabbed this rock that was in the middle of the stream, turned it over, and found about 20 of these clinging to the bottom:
Back in November, I posted pictures of a male crab spider, today we have some pictures of a female, for contrast. She probably isn’t exactly the same genus, but she’s fairly close.
