Wildlife in the Yard

I discovered a yellow slug yesterday (16 July 2017) while poking about in some rotting leaves and sticks in the back yard.

Yellow slug

Yellow slug on a stick

The only yellow slugs I had ever seen previously were banana slugs in Muir Woods in California. Those slugs were huge and beyond surprising. This slug is much, much smaller, but also surprising, mostly because of its color.

Yellow slug

Yellow slug on leaf and stick rubble

Being totally ignorant on the subject of mollusks, I tried looking this one up with Google. After some searching I decided that it’s probably a Dusky Arion (Arion subfuscus). This species was introduced from northwestern Europe long enough ago to have become completely naturalized throughout much of the eastern part of the United States. One source I looked at notes that they “have become more common than native species in many areas, and are one of the most abundant slugs found in gardens, fields, and forests.” They have also been introduced into California.

The nature guides I looked at say that Dusky Arions measure 50 to 70 mm. I think “my” slug is a bit on the small side (I didn’t measure it, because, well, it just didn’t occur to me to do that). But the guides also describe a yellow mucus trail, and “my” slug did leave such a trail. It’s visible on the stick behind the slug in the second picture above.

Click on these links for more information about the Dusky Arion:

Carnegie Museum of Natural History
Mountain Lake Biological Station, University of Virginia
The Terrestrial Mollusc Tool

Visitors to the Yard

Today’s visitor: Red Milkweed Beetle (Tetraopes tetrophthalmus) feeding on common milkweed (Asclepias syriaca) in the back yard. Or should I say “visitors”? I only saw one, but there must be more.

Red Milkweed Beetle (Tetraopes tetrophthalmus)

Red Milkweed Beetle (Tetraopes tetrophthalmus) on common milkweed flower

Red Milkweed Beetle (Tetraopes tetrophthalmus)

Red Milkweed Beetle (Tetraopes tetrophthalmus) on common milkweed leaf

Tuesday Morning’s Visitor

Clarksburg, West Virginia, 8 November 2016

I’m not sure if he was just resting in our yard on his way through or if he intended to take up residence there, but when he realized I was looking at him he got up and went away. I’d never seen him before. I would have remembered.

The Buck in the Yard

The Buck in the Yard

I don’t know where the usual little herd of does, fawns, and yearlings was.