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Syrphus opinator
This species is found across North America and has been introduced into Hawaii. Larvae feed on a wide range of aphids (Rotheray & Gilbert 1999). They are very common around California vegetable crops and have been suggested as useful biological control agents (Bugg et al. 2008).
UC Berkeley Botanical Gardens, Old Rose Garden, Berkeley, CA.
Spotted on Oct 20, 2011
Submitted on Feb 20, 2012
2 Comments
sorry Karen this is a spotting from last year--I am still playing catch-up on my uploading.
A sure sign that spring is on the way!