The top fly hatches on Pennsylvania Spring Creeks at this time are the following:

• Sulfurs (Ephemerella invaria (rotunda)) Size 14-16  Emerging late due to hot conditions. Trout will take the nymphs all day in some sections. Spinner falls are erratic and are now occurring in the early morning hours (4-5 a.m.) on many streams
• Tricos (Tricorythodes various species; but mostly minutus)  Very sporadic and not reliable. The tricos have decreased dramatically over the last 20 years and you must be on the stream at the right time.  Due to hot conditions strange emergence on most waters.  Remember most of the males emerge at night and so if you see the males at night you probably will get some hatch early in the morning.  Sizes: 18-22 Trout will take the nymphs during the hatch and sometimes they are the best flies to fish.  Also, Macri’s Sunken Spinners work.
• Light Cahill (Stenacron various species) Size 16 These creamy flies are making a come back and they are popping on some spring creeks including Big Spring.  Yellow Breeches has many of these although not in great quantities but they are coming off in numbers at night.
• Midges (Colors: Brown, Tan, Cream, Greyish-Brown, Red)  Sizes 18-32  These flies are prevalent and are in great quantities and the emergence patterns although sporadic brings the fish out especially in the mornings and evenings. Fly anglers will have better success fishing imitations underneath the water.
• Caddisfllies Goera and similar small golden tan patterns around size 16-18 are popping sporadically throughout the day on most of the spring creeks. Small Elk Hair Patterns work well if the fish are feeding.

tight lines,

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