Common Name of the dun, stonefly (S) or caddisfly (C)

Region Found

Hatch
date

Time of day

Pattern
size

Little Black Stonefly-S

E, M & W

February 1

Afternoon

14-18

Little Blue-Winged Olive Dun

E, M&W

January to December **

Afternoon

20

Little Blue-Winged Olive Dun

E, M &W

April 1

Afternoon

20

Early Brown Stonefly-S

E&M

April 10

Afternoon

12-14

Blue Quill

E & M

April 15

Afternoon

18

Quill Gordon

E

April 15***

Afternoon

14

Little Black Caddis-C

E&M

April 20

Afternoon

14

Male:  Red Quill       
Female:  Hendrickson

E&M

April 20

Afternoon

14-16

Grannom-C

 E & M

April 22

Afternoon

12-16

Grannom-C

E

April 22

Afternoon

12-14

Light Stonefly-S

May 8            

Afternoon

12

Sulphur

E&M

May 8

Evening

15

 Green Caddis-C

E&M

May  8

Afternoon

14

Pale Morning Dun

W & A

May 20

Morning,
afternoon,
or evening

16

Pale Evening Dun 

E&M

May 18

Evening

14-16

American March Brown

E&M

 May 20

Afternoon
Spinner: Evening

12

Pale Evening Dun

E

May 20

Evening

16

Chocolate Dun

E&M

May 22

Dun: Afternoon
Spinner: Evening

16-18

Spotted Sedge-C

E&M

May 23

Afternoon

14

Light Cahill

E

May 25

Evening

14

Slate Drake

E&M

 May 25**

Evening

12

Female: Pink Cahill
Male: Light Cahill       

E&M

May 25**

Evening

14

Light Cahill

E&M

May 25

Evening

12-14

Brown Drake

E,M,W & L

May 24

Evening

10-12

Green Drake

E

May 24

Evening

8-10

Gray Drake

E&M

May 24

Dun:  Day
Spinner: Evening

12-14

Blue-Winged Olive Dun

E&M

May 25

Dun: Morning
Spinner: Evening

Blue Quill

E&M

May 26

Morning &
 afternoon

18

Male: Chocolate Dun
Female: Olive Sulphur

E&M

May 30

Dun: Morning
Spinner: Evening

16

Pale  Evening Dun

E&M

May 31

Evening

18

Dark Blue Sedge-C

June 1

Evening

14

 Blue-Winged Olive Dun

E&M

June 10

Dun: Morning
Spinner: Evening

16

Yellow Drake

E & M

June 15

Evening

12

Green Drake

E, M & L

June 15

Evening

10

Blue-Winged Olive Dun

E&M

June 15

Dun: Morning
Spinner: Evening

20

Light Cahill

E&M

June 15

Evening

12

Cream Cahill         

June 15

Evening

14

Blue Quill                             

E&M

June 25

Morning &
 afternoon

18

Little Olive Dun (Trico)

E&M

July 1

Morning

24

Little Olive Dun (Trico)

E&M

July 1

Morning

24

Cream Cahill

August 1

Evening

14-16

White Fly

E&M

August 12

Evening

14

Big Slate Drake

E&M

August 15

Evening

8

Little Blue-Winged Olive Dun

E, M & W

September  1**

Dun: Afternoon
Spinner: Afternoon
& evening

20-22

Little Blue-Winged Olive Dun

E, M & W

September  1

Afternoon

20

Slate Drake

E&M

September 1**

Afternoon &
 evening

14

Autumn Sedge

E&M

September 15

Afternoon

12