Syrphus torvus (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Syrphus torvus" in English language version.

refsWebsite

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1royensoc.co.uk

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1gardensafari.net

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diptera.info

Speight, M.C.D. (2011). "Species accounts of European Syrphidae (Diptera)" (PDF). Syrph the Net, the Database of European Syrphidae. 65: 285pp.

doi.org

Edwards, J. S. (1987). "Arthropods of Alpine Aeolian Ecosystems". Annual Review of Entomology. 32: 163–179. doi:10.1146/annurev.en.32.010187.001115.

gardensafari.net

"Hoverflies (Syrphidae)". The Garden Safari. Retrieved 2014-12-03.

hccnet.nl

home.hccnet.nl

Van Veen, M. (2004). Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendum.

royensoc.co.uk

Coe, R.L. (1953). "Diptera: Syrphidae". Handbks. Ident. Br. Insects 10(1): 1-98. R. Ent. Soc. London. pdf.