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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Calyptratae » Oestroidea » Woodlouse Flies (Rhinophoridae) » Stevenia » Stevenia deceptoria
Photo#1284913
Fly - Stevenia deceptoria
Copyright © 2016 John Rosenfeld

Fly - Stevenia deceptoria
Allison Park, Allegheny County, Pennsylvania, USA
August 31, 2016

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Fly - Stevenia deceptoria Fly - Stevenia deceptoria Fly - Stevenia deceptoria Fly - Stevenia deceptoria Fly - Stevenia deceptoria
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Contributed by John Rosenfeld on 31 August, 2016 - 4:20pm
Last updated 1 September, 2016 - 9:16am

Cool
I was having a terrible time attempting to key one of these to genus using Wood's 1987 tachinid key. This would explain it!
… Ben Coulter, 6 March, 2017 - 11:36pm login or register to post comments

Moved
Moved from Flies.
… John F. Carr, 1 September, 2016 - 9:16am login or register to post comments

Stevenia?
Do you have a picture from above and behind showing whether there is a subscutellum? I can't place this as a Tachinidae. (Characters: strong crossed apical scutellars, strong divergent lateral scutellars, basal scutellars reduced to hairs, no discals, eyes bare, prealar weak, outer verticals absent, parafacial with scattered hairs but no row of bristles, M meeting R4+5 well before wing margin, costal spine strong.) It reminds me of Stevenia, with some differences from the deceptoria we have in the guide (parafrontal strips wider, pollinose areas on thorax smaller).
… John F. Carr, 31 August, 2016 - 5:40pm login or register to post comments

 
I posted an image (poor quality)
taken through the vial with a scope. I think it shows a subscutellum.
… John Rosenfeld, 31 August, 2016 - 6:27pm login or register to post comments

 
Unfortunately no
I posted another lateral that shows a hint of something under there. Not sure if that is a subscutellum or not.
… John Rosenfeld, 31 August, 2016 - 5:56pm login or register to post comments

 
Checking...
I'm asking for expert advice. I suspect a dark Stevenia deceptoria.
… John F. Carr, 31 August, 2016 - 6:54pm login or register to post comments

 
Thanks John
I bet you are right. Looks like a common species in Europe with lots of photos available and many are nearly all black.
… John Rosenfeld, 31 August, 2016 - 7:11pm login or register to post comments

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