Britain's Hoverflies

British hoverflies

Alan E. Stubbs

1983

Synopsis of the North American Syrphidae

Samuel Wendell Williston

1886

The flower flies of the subfamily Syrphinae of Canada, Alaska, and Greenland

J. R. Vockeroth

1992

Hoverflies

Francis S. Gilbert

1993

The Syrphidœ of the Ethiopian region based on material in the collection of the British museum (Natural history)

British Museum

1915

Field Guide to the Flower Flies of Northeastern North America

Jeffrey H Skevington

2019

Contribution to a monograph of the North American Syrphidae

Samuel Wendell Williston

1882

A revisional study of the fossil Syrphidae

Frank M. Hull

1945