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Photo#373991
Tabanid - Stonemyia tranquilla - female

Tabanid - Stonemyia tranquilla - Female
Marienville, Forest County, Pennsylvania, USA
August 12, 2009
Size: 15mm
More, larger images at Cirrus Digital

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Tabanid - Stonemyia tranquilla - female Tabanid - Stonemyia tranquilla - female Tabanid - Stonemyia tranquilla

Stonemyia rasa vs tranquilla
Stonemyia rasa has reddish brown legs, and the posterior margins of the abdomen have grayish hairs. Stonemyia tranquilla has black legs, and the posterior margins of the abdomen have yellow hairs.The images are indeed Stonemyia tranquilla.

Moved

Stonemyia sp.
I have a hard time telling S. rasa and S.tranquilla apart. Have a look at the ones in the guide.

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