My ties below. With beads and without. Use V-Rib for some bodies and permanent marker for top portion of abdomen. Legs were either Starling hackle tips or reverse portion of hackle pulled from stem. A few bodies were simply black thread bodies and black, small or fine wire ribbing. Dry’s: Griffiths Gnat in two sizes; also, size 18 simple wets of black or gray thread body with a simple wound Starling wing. The Emerger is black biot body overlayed with black or red Krystal Flash strand. A chunk of white foam is tied in horizontally just back from the eye. A small Peacock thorax and simple dun wrap of hackle finishes it off. Frankly, the biot wrap in small flies has been problematic for me and I don’t believe worth the effort to affix the biot on such a small fly (14). I have successfully tied a few small strands of marabou or small black ostrich in and then ribbed it. Much easier.
Pretty detailed stuff re Chironomidae (Midges). Greek ur Latin to me. Also, a more general entomology link with some good pics.
The Emerger to the right is an example of the abdomen built from a strand or two of black marabou and ribbed with red tinsel. Narrow ostrich feathers could also be used. The peacock is used to build the thorax and to cover the thread wraps securing the foam wing “bow tie”.