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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Asiloidea » Robber Flies (Asilidae) » Stenopogoninae » Microstylum » Microstylum morosum
Photo#433753
Microstylum morosum
Copyright © 2010 Troy Mullens

Microstylum morosum
Ft. worth, Tarrant County, Texas, USA
July 11, 2010
Size: 45 mm
Largest Robber Fly I have ever seen. The emerald eyes were glowing. Photo on the Ft. Worth Nature Center & Refuge. First time I have ever seen this insect. Any comments or observation would be appreciated. Male/female ???
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Contributed by Troy Mullens on 28 July, 2010 - 11:41am

Microstylum morosum range
Does anyone know the range of this Microstylum? In addition to this one seen by Troy Mullens at the Ft. Worth Nature Center & Refuge, I have seen it in the gardens of the Botanical Research Institute of Texas (BRIT) in Fort Worth and along the Trinity River floodplain in west Fort Worth. I had not previously seen this species in Texas. This one does not look exactly like the ones I have seen. Could this be the other Microstylum species?
… Bob OKennon, 1 September, 2013 - 11:39am login or register to post comments

July 14, 2012 Additional sightings
We saw 3 more of these on a Nature Walk on the 14th.
I couldn't get closer than about 15 feet for additional photos. Drat!!!
… Troy Mullens, 15 July, 2012 - 10:37am login or register to post comments

Appears female
My TX shooter friends are sending shots of both species of Microstylum down there. They are in peak abundance now I presume. And they are one of the finest insects in the southern US.
… Herschel Raney, 2 August, 2010 - 5:02pm login or register to post comments

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