picture-wing fly

5924  We had many of these flies with striped wings ( pictures attached) indoors in late summer/fall and every week or so I still see one or two crawling on my windows. I cant identify this fly and it quite unusual for us to see this many flies indoors in winter. Please let me know where they could be coming from and how to get rid of them. We live on an acreage in the country with farms around us near Hague, SK.    Thank you,   Rachel

This looks like a picture-wing fly (Diptera: Ulidiidae) in the genus Ceroxys. These basically are nuisance pests that do no real harm; see http://tinyurl.com/zp3c9lv for more detailed information. Ed Saugstad, retired entomologist; Sinks Grove, WV.