Internet Syrphidae keys

M.P. van Veen

My book on the Northwest European Hoverflies appeared on December 17th, 2004. It contains identification keys to the NW-European Hoverflies. The keys at this site are mostly test keys for the book, that have not been updated. However, some keys at this site are maintained because they have a larger geographical range (e.g. Syritta). Also major modifications will be published at this site. If you have approvements, please let me know at mvv_43 at hotmail.com.

Copyright of each key remains with the author indicated in the key. You are not allowed to copy text or pictures for other purposes than personal use, e.g. further distribution or printed distribution. Links to this page are encouraged.

The table indicates the keys that are available, their version and the date the version was released, and the information on the kind of changes in the key.

Key Version Version information
Brachyopa. Brownish hoverflies, larvae in sapstreams of trees. Key for Europe. 3 (30-1-2005) Added B. grunewaldensis, B. silviae and B. bimaculata from Volucella 7. Key covers Europe.
Chrysotoxum. Good social wasp mimics, with long antennae and a bright yellow on black pattern. Key for Northwest Europe. 2 (12/7/2001) small corrections
Eristalis. Stout, brownish bee and bumble bee mimics. Common in every garden. Key for Northwest Europe. 3 (3/6/2004) Revised and updated according to Hippa, Van Steenis and Nielsen, 2001.
Epistrophe. Yellow on black hoverflies. Key for Northwest Europe. 2 (6-12-2001) Based on Doczkal and Schmid (1994)
Eumerus. Small, quickly moving hoverflies. Key for Northwest Europe. 4 (12/7/2001) E. sinuatus added, key improved.
Lejogaster. Green metallic hoverflies of wetlands. Key for Europe. 1 none
Melanostoma. Small, inconspicuus hoverflies. Key for NW-Europe. 1 none
Merodon. Key to NW-Europe. 1 (31-12-2004) Added photos.
Neoascia. Small, black hoverflies with a claviform abdomen, occuring in moist situations. Key for NW-Europe. 1 none
Paragus. Small, black or red, thermophilic hoverflies. Key for NW-Europe. 1 (6-12-2001) none
Parhelophilus. Middle sized hoverflies, with longitudinal stripes in the thoracic dorsum. Found close to water. Key for Europe. 1 (11/2/2001) from Reemer (2000). Contains all European species, more than the book.
Pipizella. Key for Northwest Europe. 1 (6-12-2001) After Verlinden (2000)
Platycheirus. Small and slender, blackish to yellowish hoverflies. Key for Northwest Europe, including most alpine species. 4 (30-1-2004) Species from Nielsen (2004) added, added P. aurolateralis. Identification key covers NW-Europe, most European species covered.
Rhingia. Red-brown hoverflies with a typical long snout. Larvae in dung. Key for Europe. 1 (21/3/2001) from Van Steenis (1998)
Scaeva. Broad bodied hoverflies, that have the power to disperse over large areas. Key for Europe. 1 (21/3/2001) from Speight et al (1987)
Sericomyia. Key for Europe. 2 (14/02/2002 Added arctic and Spanish species.
Sphaerophoria. Elongated, yellow and black hoverflies. Key for Northwest Europe. 4 (30/5/2004) Keys completely updated. Addition of S. abbreviata.
Sphegina. Slender, long hoverflies with a black abdomen with reddish markings. They occur in moist forests. Key for Europe. 1 (21/4/2001) Contains all European species, more than the book.
Spilomyia. Large wasp-mimics. Key for Europe. 2 (27/1/2001) Revised according to Van Steenis (2000). Addition of S. graciosa, S. longicornis and S. triangularis.
Syritta. Small, stick-like hoverflies. Key for Europe. 1 (31-12-2004) Based on Van der Goot (1981) en Seguy (1961).
Volucella. Large haired, yellow on black or black-ans-white hoverflies of forests. Key for Europe. 1 none
Xylotini. Sawfly-like hoverflies, encountered walking on leaves or on flowers. Genera Xylota, Chalcosyrphus, Brachypalpus and Brachypalpoides. Key for Europe. 1 (11/2/2001) Based on Speight (1999)

Last updated 4.10.2005