Baker Laboratory dates back to World War I. With 200,000 square feet of space, the lab is home to Cornell’s Chemistry and Chemical Biology Department, the Chemistry Research Computing Facility, the Nuclear Magnetic Resonance Facility, and the Advanced ESR Technology Research Center (whew!!).
Trees on a Knoll
On the right, on a knoll, is a European beech tree (Fagus sylvatica). The Latin name holds a double irony. Standing, alone, high above East Avenue on the Cornell campus (sylvatica means “of forests”) as a memory of the forests growing above Cayuga Lake is a being once worshiped as a god. In Celtic mythology, Fagus is the god of beeches.
A maple is on the left, genus Acer of unknown species. I recognize it from the shape.
Copyright 2020 Michael Stephen Wills All Rights Reserved
Clinging to my sleeve, the newly emerged Monarch wings dried. It is a process of excreting the fluids pumped into wings, crumpled from folding within the chrysalis, to expand them. The clear drips of water on my arm are this fluid. I spent the hour sitting by our pool, savoring the summer morning. The butterfly signaled readiness, wings dried and hardened, opening and closing them slowly. Offered my finger it crawled to my hand, across to the thumb and, running out of space, took off.
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Misjudged by over an hour, I reached into the cage to allow the Monarch butterfly to crawl onto my hand for the first flight. Instead, it crawled up my arm and clung to my cotton shirt sleeve.
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Emerged from the chrysalis a butterfly’s wings are crumpled, useless. Here it is fifteen minutes into freedom after abdominal fluid is pumped into the wings, opening them. Full of this fluid, the wings are soft, still useless.
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Our monarch butterfly sanctuary is a dense stand of milkweed, over the years the established plants grow rapidly late May through June, blooming in July. The flowers have an incredible scent, attracting numerous pollinating insects.
A colony of pesky sparrows nest nearby. In spite of a reputation for tasting bad, the sparrow actively feed on the hatched caterpillars. My strategy is to examine the plants early morning, placing rescued caterpillars in this old birdcage.
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The caterpillars and milkweed leaf is placed on the cage floor. I pile up the dried leaves, replacing with fresh each morning.
Sadly to report, the last, ravenous caterpillar stage is also carnivorous, cannibalistic. These two, below, were the only ones left except for one in the pile of dried leaves.
Here is a closer view of the two fifth stage instars searching for a safe location to pupate.
A few hours later one has successfully created a silk pad, attached itself and assumed the “J” shape. To the left a second caterpillar and silk pad.
The next morning, the first has formed a chrysalis. The second, hung spent.
This unsuccessful individual never completed the chrysalis, dried up and fell. My sources write the pupa transforms to a chrysalis through shedding of skin, the following photograph tells a different story. The chrysalis appears to extrude from the skin; arising over, or from, the skin rather and beneath it. I have never recovered a shed skin underneath a successful chrysalis.
Nine days later, Tuesday, July 28, the chrysalis hangs. I check several times a day.
These photographs are from a 100mm “macro” lens, handheld. The birdcage works well for protecting the monarchs. Is a poor location for photography.
Thank You for visiting.
Copyright 2020 Michael Stephen Wills All Rights Reserved
