Fam. Syrphidae

This seminal work on syrphid flies, also known as hoverflies, is a must-read for anyone interested in entomology. Williston's careful observations of these fascinating creatures, as well as his classification system, have had a lasting impact on the field of biology. Whether you are an experienced scientist or simply an amateur naturalist, this book is a treasure trove of information on one of the most diverse and important groups of flies.

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