Top Photo: Soldier fly larvae feeding in our wetland. I’m not sure of the species level identification but the larvae in the photos above and below seem to belong to the genus Stratiomys. They’re a genus of soldier fly which apparently lays eggs in the water. The adults are bee or wasp mimics and feed on nectar and pollen. The larvae that hatch from the eggs deposited by the adults eat detritus on the bottom of a shallow, muddy pondRead more
Posts tagged: #larvae
Banded Sphinx
Top Photo: Banded sphinx moth caterpillar preparing to chew on wingleaf primrose-willow in wetlands. Last September, I photographed a banded sphinx moth (Eumorpha fasciatus) caterpillar on an end-of-the-season wingleaf primrose-willow (Ludwigia decurrens) in the wetlands. There were only a hand-full of those plants in the wetlands at the time. This year, there are many. The larvae may be green-themed, red, black, or multi-colored. The genus name Eumorpha means “well formed” or “good shape” and the species name fasciatus refers toRead more
A New Caterpillar for the Photo Achives
Top Photo: Hummingbird moth caterpillar on viburnum. Just last week (8/19) I posted I was keeping an eye out for caterpillars of the hummingbird moth (Hemaris thysbe). I had spotted a moth the previous week laying eggs on a viburnum and wanted to get a photo of the caterpillar. I mentioned my observation to Richard Stickney of the Butterfly House crew and sure enough, he found one on the very viburnum I indicated (8/28). When seeing the caterpillar I wasRead more
New and Old Things Emerging
Top Photo: Tiny yellow flower of Mexican Sour Gherkin Cucumber. The fruit of the Mexican Sour Gherkin Cucumber is about an inch long. They look more like tiny watermelons but have the taste of a cucumber with a lemony tang. These vines grow in many locations throughout our campus, wherever they’re not supposed to grow. I intended to plant this vegetable in my own personal garden at home this year but was sidetracked by other matters. I’ll make sure toRead more
Tangled Webs
As the seasons move toward autumn, fall webworms are becoming more visible in the local trees and shrubs. They seem to be everywhere. They’re in many different species of tree including redbud, elm, mulberry, ash, and maple to name a few. They don’t seem particular about what type of tree leaf they eat. One resource has them listed as consuming the leaves of 400 species of woody plant (trees and shrubs). The small moth larvae’s silken webs cover the leaves asRead more
The March of the Soldier Flies
The water level in the Wetlands was low. The shoreline reached out a dozen feet or more from where it had been most of the spring, creating mud flats where there was once water. As I walked past the viewing area on the north side of the Wetlands, I noticed the mud sparkling in the sunlight. The mud appeared to be alive. There was something, many things, moving on the surface making the mud itself seem to crawl. I took severalRead more
What’s the Difference?
Top Photo: Sawfly larva or caterpillar? I received an email, with a blurry photo attached, stating that the emailer had taken the photo in Explore the Wild. The subjects in the photo looked to be caterpillars, but may have been sawflies, I couldn’t tell. I had to go look for myself. The email said that the caterpillars, or whatever they were, were on a birch tree on the north side of the Wetlands. There are three birches on the north side ofRead more
The Creeper
While sitting quietly by the bird feeders I noticed a small brownish bird fly down from the heights of one of the tall trees that surround the feeder area. The bird perched woodpecker-style near the base of another tree and immediately began creeping up the trunk in a spiral, winding its way up the tree as it climbed. I see these birds every fall and winter here at the Museum, but getting a clear, sharp photo of one has beenRead more
My, how they’ve grown!
A recent post to this Journal featured two caterpillars, one of those was the larva of a Cloudless Sulphur butterfly on Partridge Pea in Catch the Wind. On August 2, I noticed one of these large yellow sulphurs lay at least one egg on the plant. Fives days later I saw one, then two, caterpillars munching away on the plant’s flowers. It’s now August 15, and the caterpillars have grown considerably. They will probably crawl off to pupate within aRead more