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Photo#506789
horse flies are rare at my house - Poeciloderas quadripunctatus - female

horse flies are rare at my house - Poeciloderas quadripunctatus - Female
Austin, south of Colorado River, Travis County, Texas, USA
April 17, 2011
Size: ca 15mm
This horsefly is wet because it was in one of my seed sprouting buckets when I hosed it down. Never did fly off so it may be sick. Maybe it got hold of some bad horse meat or donkey. Looks closest to mixus, but for one thing, the smoky spots in the wings are way more pronounced.

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horse flies are rare at my house - Poeciloderas quadripunctatus - female horse flies are rare at my house - Poeciloderas quadripunctatus - female

Moved
Moved from Tabanus.

Poeciloderas quadripunctatus
This species has now been documented in Central Texas a few times. See, e.g.:
Goodwin, Godwin, and Preston. 2010. Corrections and Addenda to The Horse and Deer Files (Diptera: Tabanidae) of Texas, Including United States, Texas, and Texas County Records. Southwestern Entomologist 35(2):147-155. Here's a link to an abstract on BioOne.
Needs a new BG page.

 
Link bugged. For me, it ju
Link bugged.

For me, it just goes back to browse. For these cases, it is best seen through here: https://bioone.org/journals/southwestern-entomologist/volume-35/issue-2

Moved
Moved from Horse Flies. I'm reasonably sure this is Tabanus, but this specimen really looks like the Neotropical genus Poeciloderas, one species of which, P. quadrivittatus, gets into Mexico. It's really bothering me.