Maria Sibylla Merian - Her Work

Her Work

Merian worked as a botanic artist. She published three collections of engravings of plants in 1675, 1677 and 1680. Afterwards she studied insects, keeping her own live specimens, and made drawings showing insect metamorphosis, in which all life stages of the insect (egg, larva, pupa, and adult) were depicted in the same drawing. In her time, it was very unusual that someone would be genuinely interested in insects, which had a bad reputation and were colloquially called "beasts of the devil." As a consequence of their reputation, the metamorphosis of these animals was largely unknown. Merian described the life cycles of 186 insect species, amassing evidence that contradicted the contemporary notion that insects were "born of mud" by spontaneous generation.

Moreover, although certain scholars were aware of the process of metamorphosis from the caterpillar to the butterfly, the majority of people did not understand the process.

The work that Anna Maria Sibylla Merian published, Der Raupen wunderbare Verwandlung und sonderbare Blumennahrung -- The Caterpillars' Marvelous Transformation and Strange Floral Food, was very popular in certain sections of high society as a result of being published in the vernacular. However, it is notable that her work was largely ignored by scientists of the time because the official language of science was still Latin.

Merian also described many other details of the evolution and lifecycle of the insects she observed. She could, for example, show that each stage of the change from caterpillar to butterfly depended on a small number of plants for its nourishment. As a consequence the eggs were laid near these plants.

Her work places her among one of the first naturalists to have observed insects directly. This approach gave her much more insight into their lives and was contrary to the way that most scientists worked at the time.

The pursuit of her work in Suriname was an unusual endeavour, especially for a woman. In general, men received royal or government funding to travel in the colonies to find new species of plants and animals, make collections and to work there, or to settle. Scientific expeditions at this period of time were not common, and Merian's unofficial, self-funded expedition raised many eyebrows. She succeeded, however, in discovering a whole range of previously unknown animals and plants in the interior of Surinam. Merian spent time studying and classifying her findings and described them in great detail. Her classification of butterflies and moths is still relevant today. She used Native American names to refer to the plants, which became used in Europe:

"I created the first classification for all the insects which had chrysalises, the daytime butterflies and the nighttime moths. The second classification is that of the maggots, worms, flies and bees. I retained the indigenous names of the plants, because they were still in use in America by both the locals and the Indians". (in the foreword of Metamorphosis insectorum Surinamensium).

Her drawings of plants, frogs, snakes, spiders, iguanas and tropical beetles are still collected today by amateurs all over the world. The German word Vogelspinne—mygalomorphae, translated literally as bird spider—probably has its origins in an engraving by Maria Sibylla Merian. The engraving, created from sketches drawn in Surinam, shows a large spider who had just captured a bird. In the same engraving and accompanying text Merian was the first European to describe both army ants and leaf cutter ants and their effect on other organisms.

Shortly before Merian's death her work was seen in Amsterdam by Peter the Great. After her death he acquired a significant number of her paintings which to this day are kept in academic collections in St. Petersburg.