Two Tails. Slender body. Dark gray to tan upper body with pale gray to cream underbody. Wings are dark gray, usually heavily mottled in the dun. Spinner wings are often, but not always, have dark brown splotches on the leading edge.
Timing of Hatches
Mid to late July through September. Duns usually emerge at dusk or after dark. Spinners fall in the mid-morning to early afternoon hours.
Primarily lake dwellers. Callibaetis provide exception dry fly fishing on Hebgen, Cliff, Quake and other lakes in the region. They are also very common on the spring creek waters of the Harriman State Park on the Henry’s Fork, Silver Creek, and other slow moving spring creeks.
Callibaetis provide some of the best dry fly fishing during mid to late summer on the Harriman Park section of Henry’s Fork. They are classified as swimmer nymphs. The spinners are much more important than the duns. Their size gets noticeably smaller as the summer moves into autumn.
Callibaetis Nymph, Callibaetis Thorax, Callibaetis Cripple, Callibaetis Partridge Spinner
14, 16 & 18