Female Chironomidae (Midges) Midge AdultView 5 PicturesThis midge and several like it, including a male I also photographed, hatched from larvae which were living in some fine mud I'm using as substrate in my bug-rearing aquarium. This one flew away before I could photograph it on the ruler, but it would have measured slightly smaller than the male.
Rhithrogena virilis Mayfly SpinnerView 2 PicturesBefore I reared this specimen the nymphs were unknown. See Western North American Naturalist for the paper on the description of this species' nymph.