Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowseInfoImagesLinksBooksData
Photo#870590
Megasyrphus/Eriozona?  Olympic NP - Megasyrphus laxus - female

Megasyrphus/Eriozona? Olympic NP - Megasyrphus laxus - Female
Hoh Rainforest, Olympic NP, Jefferson County, Washington, USA
August 22, 2013
Found this lovely syrphid in the Hoh Rainforest in Olympic National Park on a gravel bar.

Using the genus key (Key to the Genera of Nearctic Syrphidae), I keyed this out to Megasyrphus, but I'm not 100% sure about that (and can't go to species, since the key paper is in German and I can't find a copy of it anyways). The yellow on the abdominal segments does seem to go all the way to the margins, so not Didea. The bands are continuous, and the wing veination seems different from Scaeva and Lapposyrphus. Thoughts?

(apparently Megasyrphus is sometimes grouped in with Eriozona)

Moved
Moved from Megasyrphus.

 
I think this is Megasyrphus l
I think this is Megasyrphus laxus too. I am familiar with Megasyrphus erraticus ( originally M. annulipes ) in the U.K. which looks like this and some think it is the same species. BugGuide has come pics with blue spots; the spots are a different shape and hind femora,tibiae and tarsi are different from the specimen identified by Chris Thompson. How very strange, I am in conversation with Martin Hauser about this at the moment.

 
Fascinating; I did these move
Fascinating; I did these moves after realizing that the only other Nearctic Megasyrphus is restricted to the SW USA. I've no idea why some have bluish color and some yellow, but it's an impressive color of blue...

Moved
Moved from Syrphid Flies.

photo link
Lets see if I remember how to do this, I saw this in your photos and recalled I have several at least similar.

 
The R4+5 vein is not dipped i
The R4+5 vein is not dipped in this Syrphini.
Megasyrphus has this vein dipped.

 
Looking at the two... the syr
Looking at the two... the syrphid in your photo seems to have a relatively flat R4+5 vein, where mine curves down and then up - but definitely both Syrphini!

Have you seen Martin's comment on this post?

 
I did - that's actually where
I did - that's actually where I got the info on Eriozona from, since the Alberta key just lists it as Megasyrphus. But thanks for the reminder!

Moved for expert attention.
Moved from ID Request.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.