I have a feeling this isn’t going to be as popular a picture as some. Even the picture of the fly I posted recently (Eristalis transversa, Transverse Flower Fly) was popular because in spite of it being a fly, it’s a beautiful fly. Mosquitoes, on the other hand, are pretty much universally disliked, however they look. I haven’t done much with identification of mosquitoes so I’m not sure which this is. At first glance, I think it may be Orthopodomyia signifera, but I wouldn’t place a great deal of confidence in that. The picture may not be sharp enough, really, to get a definitive ID, but I’ll see what I can find out from the experts at BugGuide.net.