Moths of the Limberlost by Gene Stratton Porter. Doubleday, Page and Co. 1921. I listened to the Librivox version, beautifully read by J M Smallheer.
I would not have thought that listening to a book about insects, least of all large moths, without being able to see the illustrations, could be utterly absorbing, but Gene Stratton Porter’s descriptions of the finding and rearing of some dozen species certainly is. All of them came from from around her home near the great Limberlost Swamp of northeast Indiana, found by herself, her husband and numerous friends and neighbors, some of whom went miles out of their way to bring her specimens. Besides her accounts of the finding of the adults or caterpillars and her meticulous descriptions of each species behavior and development, there are her minute descriptions of the patterns and colors of all stages, carefully based on the freshest individuals. As a photographer and painter of birds and insects in the days of black and white glass plates, she had to be a very close observer and recorder of colors, if she wanted to get good illustrations based on her photos. A look at the illustrations from the book shows that she did extremely well.
Her life history observations, such as how hawk moth larvae pupate, burying themselves in the ground and then wriggling back to the surface, posterior end first, while still in the pupal case, so they can spread and dry their wings upon emergence, are fascinating. I like her attitude towards the published literature on moths. She mentions many famous lepidopterists (see my post from on Butterfly People from last February) has read their work, but is willing to point out the shortcomings of their accounts of the actual lives of the insects they describe and illustrate.
Her anecdotes of catching and keeping moths are delightful. Her home must have seemed like more of an insectarium at times, with moth eggs carefully marked and protected on the floors and carpets, because a gravid female escaped and could find no host plant to lay them on. The effort put into successful rearings and the failures that invariably accompany attempts with unfamiliar species must have been very demanding, and the moths were not even her chief occupation. Her novels, the most famous being A Girl of the Limberlost, 1909 and bird photography and illustration took even more time.
Even as she studied them, species like the Cecropia moth and the Polyphemus were losing out to expanding agriculture, lumbering and drainage of swamps like the Limberlost. Later would come DDT and street lights to put still more stress on their populations. Parasites introduced to control gypsy moths have added to the widespread decline, especially in the Northeast. Today, aerial images of the Limberlost show mostly agricultural fields and only a few remnant woodlands, including one small restoration site on Loblolly Creek. We can be grateful that Gene Stratton Porter left us such a beautiful record of what was there before.