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Longlegged Sac Spiders Genus CheiracanthiumObserver
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And then this little hatchling appeared on my lap....
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Common Tree Crickets Genus OecanthusObserver
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While IDing spiders, this suddenly appeared on my lap. 😆
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Running Crab Spiders Family PhilodromidaeObserver
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In a bathroom at the field station. For some reason, my camera just can't handle things on light-colored backgrounds, so the photos didn't come out very well. This fella got a little startled when I tried to hold the scale next to him. The long legs make them look big, but they are not large spiders at all.
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Entelegyne Spiders Infraorder EntelegynaeObserver
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Found this exuvium under a rusted old can. I can see a notably deep dorsal groove on the carapace and a relatively clear eye arrangement, but I don't know yet what family this belongs to.
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Convergent Lady Beetle Hippodamia convergensObserver
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Found dead on tree. This is the only lady beetle species I observed throughout our stops in the park.
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Arthropods Phylum ArthropodaObserver
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I need help figuring out the plant so I can figure out the galls (or just help with the galls).
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Observer
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I believe this is a psyllid, though I've never knowingly seen one before. It was very difficult to see on this Shepherdia rotundifolia, and it hopped away before the shutter released on my 5th photo. Because it is nearly the same color as the foliage, I have included the original photo and then an enhanced version of each.
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Crab Spiders Family ThomisidaeObserver
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Most of my day of spider hunting was filled with empty webs and spider molts. Here's a tiny exuvium, where the general eye and leg arrangement are visible.
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Butterflies and Moths Order LepidopteraObserver
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Among the Betula leaves being skeletonized by leaf beetle larvae, there were a few woolly cocoons. My guess was that they were made by Malacasoma caterpillars dropping from the tree above, because we'd seen many of those around, but I didn't look to see if there were any tents in this tree. And I don't know if they do this to leaves.
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Metallic Flea Beetles Genus AlticaObserver
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Most Altica species feed on alders, but there are some that feed on Betula, which this is. The cocoon, though surrounded by beetle larvae is unrelated to the beetles. This tree was very near the river's edge.
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Funnel Weavers Family AgelenidaeObserver
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This funnel web was built into a tree branch. It is right next to the river bank, which is why there is debris packed into it. As was the case all day, there was nobody home.
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Ants Family FormicidaeObserver
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In the sand a few meters from the river's edge.
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Bristletails Order ArchaeognathaObserver
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In the sand a few meters from the river's edge.
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Arthropods Phylum ArthropodaObserver
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I don't know if this is from a gall-forming arthropod, or scars from ovipositing, or something else altogether. On Ericameria nauseosa (I believe). Ideas?
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Genus AciurinaObserver
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A. bigeloviae?
On Ericameria nauseosa (I believe)
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Genus PsilochorusObserver
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Found inside a piece of wood in the sand, a couple meters from the river's edge.
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Willow Pinecone Gall Midge Rabdophaga strobiloidesObserver
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On Salix exigua (I believe)
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Thin-legged Wolf Spiders Genus PardosaObserver
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In the sand a couple meters from the river's edge.
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Genus PontaniaObserver
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On Salix (maybe Arroyo?)
Genus is an educated guess based on similar willow gall-formers within it. Of note is the fact that these galls are only on one side of the leaf.
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Funnel Weavers Family AgelenidaeObserver
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A funnel web up in the branch of a large tree (a cottonwood?). No spider was home, but there was something that had gotten caught in it.
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Ants Family FormicidaeObserver
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Suspended in a funnel web with no spider. In a branch about 5 feet off the ground.
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Lauxaniid Flies Family LauxaniidaeObserver
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On a large tree trunk a few meters from the river's edge.
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Genus MalacosomaObserver
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On a large tree trunk a few meters from the river's edge. I'm pretty sure the hole just below the moth is where it emerged from its cocoon, which it had built in the bark. This tree had several tents in the canopy, and cocoons among the foliage below.
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Butterflies and Moths Order LepidopteraObserver
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I am guessing this is the work of caterpillars, due to the entrance holes in the Opuntia, the frass left behind, and the webbing. But I don't know if there are beetles or other larvae that do the same.
