Thread subject: Diptera.info :: Plumose Arista and open R5 Cell

Posted by Stephen on 23-07-2006 12:47
#1

This fly seems to me to be Muscidae: striped thorax, plumose arista. But is the R5 cell too open for Musciade? Most Muscids have the R5 cell closed or nearly closed at the wing margin, don't they?

Photographed 8 April 2006, open area near woodlands, West Virginia USA. Measured 8 mm from front of face to tip of abdomen.

ID help appreciated!

Posted by Stephen on 23-07-2006 12:49
#2

Here's a second image.

Posted by ChrisR on 23-07-2006 13:35
#3

Hi Stephen,

Have a look at the gallery and compare examples of muscids, sarcophagids and tachinids. I think you'll find that an open cell-R5 is far more common in Muscidae but it is not a defining feature of the group :) The appearance of cell-R5 is more often a characteristic used at generic or specific level.

Posted by Tony Irwin on 23-07-2006 15:49
#4

Looks very like Myospila meditabunda - found everwhere except Africa and Australasia... and Antarctica ;)

Posted by Stephen on 23-07-2006 19:33
#5

Chris, Tony, Thanks very much for helping me on this fly.

I found an image of Myospila meditabunda on the "Insects of Cedar Creek" site and it does indeed look a lot like my fly!