7009728-Spilomyia - Spilomyia liturata

Moved

Moved from Spilomyia.

… Hartmut Wisch, 11 October, 2009 - 4:00pm

Very nice photos!

You wouldn't happen to have one that shows the apical tergites (last abdominal segments dorsally)?

… Hartmut Wisch, 22 September, 2007 - 12:21am

This is as close as I have to

This is as close as I have to it.

… Rob Curtis, 24 September, 2007 - 5:13am

Spilomyia liturata -

This is what this keys to with your additional images. Though rather similar to S. interrupta, the yellow abdominal bands are only faintly interrupted in the middle, and there's less yellow on the lower side of the thorax.
It might be interesting to add that the plant, from which this fly is taking nectar, is a Ceanothus (looks like Fendler's Buckbrush, C. fendleri).
Re. location, is it possible that you were in the Graham Peak area (San Juan Mountains, CO)? I know Mt. Graham in AZ, but can't find a Mt. Graham in CO.

… Hartmut Wisch, 25 September, 2007 - 12:38pm

S. longicornus, do you think?

I do. Several have been posted recently, and they look like yours.

… Ron Hemberger, 18 September, 2007 - 12:45am

Either that or

interrupta. I can't tell them apart but interrupta is found in the west while longicornis is in the east.
Let us hope that somebody tell us what this one is.

… Beatriz Moisset, 20 September, 2007 - 3:57pm

Hi Beatriz,

there are more spp. out west than interrupta , though not all of them apply. It may well be citima , but I'm not sure yet; too tired for now.

… Hartmut Wisch, 22 September, 2007 - 12:15am

I'm pretty sure I have it figured out.

E. interrupta has bigger "interruptions" on the broken yellow stripes:

Also, markings on the thorax are a bit bolder, at least on Hartmut's specimen. (We don't have a lot to go on here.)

… Ron Hemberger, 20 September, 2007 - 9:40pm

So it is changed to interrupt

So it is changed to interruptus?
AZ is in the west.
I have many other views if necessary.

… Rob Curtis, 21 September, 2007 - 12:04am

Views

Yes, a couple of more views wouldn't hurt.
I keep hoping that an expert would step in.

… Beatriz Moisset, 21 September, 2007 - 6:56am

Wing venation and a side view might help

I think we can compare veins with photos already here, but don't know if there's any difference at species level. A side view might be used with this S. longicornus info, but we have nothing similar for the other species.
http://www.canacoll.org/Diptera/Staff/Skevington/Syrphidae/Spilomyia/Spilomyia2.jpg

… Ron Hemberger, 21 September, 2007 - 11:19am

I still say S. longicornus

Appearance is no contest. As to range, there's at least one sighting in Oklahoma, so Arizona doesn't seem much of a stretch to me. And as a Bug Guide sage once put it "If it flies, all bets are off." Just this week, an Orange County sighting of a dragonfly (Turquoise-tipped Darner) extended its range from southeast Arizona to costal California.

But, hey, I'm no expert.

… Ron Hemberger, 21 September, 2007 - 12:51am