Hatch Chart for April

April Hatch Chart and Pattern Recommendations
Insect	Stage	Pattern	Size	Color	Water Type	Time of Day
Mayfly, Blue Winged Olive (Beatis)	Nymph	Crystal Flash Nymph Pheasant Tail	16-18 16-18	Dark Olive or Dark Brown	Slack slow water, back eddies, and slow flats	Mid-day (1:00 p.m. to 3:00 p.m.)
	Emerger	Beatis Soft Floating Nymph	16-18	Black Olive or Brown Tan Dark Brown or Dark Olive	Slack slow water, back eddies, and slow flats	Mid-day (1:00 p.m. to 3:00 p.m.)
	Adults	Para Beatis Para Adams B.W.O. Thorax B.W.O. Spinner	16-18	Black Olive Adams Grey Dark Olive PT Brown/Tan	Slack slow water, back eddies, and slow flats	Mid-day (1:00 p.m. to 3:00 p.m.)
May Fly Mahogany Dun (Paraleptophlebia)	Nymphs	Gold Ribbed Hares Ear	14-16	Dark Brown	Slow runs to tail-outs	Mid-day
	Adult	Comparadun (3-tails) Mahogany Thorax (3-tails) Spinners (3-tails)	14-16	Reddish Brown Reddish Brown Purplish Brown	Soft runs, tight to bank, 2 to 4 feet of water	Mid-day
March Browns (Rhithrogena)	Emerger	Soft Hackle B.H. March Brown Spider	12	Med. Brown, Light Brown, or Tan	Slow runs, 3 to 4 feet of water	Mid-day (11:00 a.m. to 3:00 p.m.)
	Adult	Parachute March Brown Comparadun	12	Tan	Slow runs, 3 to 4 feet deep, close to bank	Mid-day (11:00 a.m. to 3:00 p.m.
Caddis, Speckled Wing Caddis, Net spinning (Hydropsyche)	Larva	Zug Bug Dubbed Caddis Larva	12-14	Dark Olive/Grey	Deep slow runs, fished deep	Mid-day (11:00 p.m. to 4:00 p.m.)
Caddis Western Weedy Water Sedge (Amiocentrus)	Larva	Zug Bug Peaking Caddis Sparkle Caddis Larva	12-14	Natural Olive/Brown	Weedy mossy areas with moderate flow and riffles	12 to 4 p.m.
	Pupa	Emergent Sparkle Pupa Soft Hackle CDC Caddis Emerger	14-16	Green body with tan shroud Green or Olive Green/Tan CDC	Weedy mossy areas with moderate flow and riffles	12 to 4 p.m.
	Adults	Elk Hair Caddis CDC Caddis X-Caddis	14-16	Olive	Soft runs, seam edges, riffles, eddies	12 to 4 p.m.
Caddis Green Rock Worm (Rhyacophila)	Larva	Sparkle Caddis Larva Caddis Larva (La Fontain's) Green Rock Worm	12-14	Bright Green Green or Olive Green	Riffles, soft runs below riffles	12 to 4 p.m.
	Pupa	Emergent Sparkle Pupa Soft Hackle Z-Wing Caddis	12-14	Tan and Olive Green and Olive Green and Olive	Riffles, soft runs below riffles	12 to 4 p.m.
	Adults and egg-layers	Elk Hair Caddis Dear Hair Caddis Diving Caddis Soft Hackle	12-14	Green Olive Green and Olive Green and Olive	Riffles, soft runs, and tail-outs	Mid-day into evening
Caddis Igloo Cased Caddis (Glossosoma)	Larva	Caddis Larva G. R. Hares Ear	16-18	Light Tan Natural	Riffles and tail-outs	Mid-day to evening
	Pupa	Sparkle Pupa Soft Hackle	16-18	Orange body with tan shroud Orange or cream	Riffles and tail-outs	Mid-day to evening
	Adults	Elk Hair Caddis Diving Caddis	18	Brown Brown/Black	Riffles and tail-outs	Mid-day to evening
Stone Fly (Salmon Fly -- Pteronarcys califoronica)	Nymph	Smerf Stone Nymph B. H. Rubber Leg Stone	8	Black	Bolder Runs, Ledges and Pockets	All-day
GoldStone (Hesperoperla pacifica)	Nymph	Smerf Stone B.H. Rubber Leg Stone Matt's Furr	8 - 10	Gold or Brown Gold Tan	Bolder Runs, Ledges and Pockets	All-day
Spring Stone (Skwala)	Nymph Adult	Matt's Furr Stimulator	8	Tan/Natural	Bolder Runs, Ledges and Pockets	All-day
Midge	Pupa	Serendipity Miracle Midge Suspended Midge	16-20	Black, Olive, Grey, and Tan	Slow slack water and back eddies	9:00 a.m. to 1:00 p.m.

April Hatch Chart and Pattern Recommendations