| SIZE |
NAME |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
|
18/20
|
Allocapnia granulata or vivipara
Tiny Early Winter Black Stonefly |
****
|
****
|
****
|
|
|
|
|
|
|
|
|
|
16/20
|
Nemouridae and Leuctridae
Tiny Late Winter Black Stonefly |
|
*
|
****
|
****
|
|
|
|
|
|
|
|
|
10/14
|
Taeniopteryx nivalis
Early Black Stonefly |
|
*
|
****
|
****
|
|
|
|
|
|
|
|
|
12/14
|
Brachyptera fasciata
Early Brown Stonefly |
|
|
**
|
****
|
* |
|
|
|
|
|
|
|
18/20
|
Baetis vagans
Blue Wing Olive Mayfly |
|
|
|
***
|
X***
|
*XX*
|
****
|
*** |
|
|
|
|
16/18
|
Paraleptophlebia adoptiva
Slate Wing Mahogony Mayfly |
|
|
|
**
|
XX**
|
****
|
|
|
|
|
|
|
12/14
|
Ephemerella subvaria
Dark Hendrickson Mayfly |
|
|
|
**
|
XX* |
|
|
|
|
|
|
|
16/18
|
Chimarra aterrima
Little Black Caddis |
|
|
|
**
|
XX**
|
****
|
****
|
****
|
|
|
|
|
12/14
|
Leptophlebia cupida
Borcher's Drake Mayfly |
|
|
|
*
|
****
|
****
|
****
|
** |
|
|
|
|
14/16
|
Brachycentrus americanus
Grannom Caddis |
|
|
|
*
|
****
|
****
|
****
|
|
|
|
|
|
2/8
|
Pteronarcys dorsata
Midwestern Salmon Fly Stonefly |
|
|
|
*
|
****
|
****
|
** |
|
|
|
|
|
10/18
|
Rhyacophilidae fenestra
Green Rock Worm Caddis |
|
|
|
|
****
|
****
|
|
|
|
|
|
|
8/14
|
Perlodidae lsogenus and lsoperla
Medium Brown Stonefly |
|
|
|
|
****
|
****
|
****
|
|
|
|
|
|
10/14
|
Siphloplecton basale
Great Speckled Olive Mayfly |
|
|
|
|
*XX
|
****
|
** |
|
|
|
|
|
14/20
|
Hydropsyche bronta and simulans
Net Building Caddis |
|
|
|
|
***
|
****
|
****
|
****
|
****
|
****
|
|
|
16/18
|
Ephemerella dorothea
Sulphur Dun Mayfly |
|
|
|
|
**
|
XXX*
|
* |
|
|
|
|
|
14/18
|
Alloperla caudata and imbecilla
Little Yellow and Little Green Stonefly |
|
|
|
|
**
|
****
|
****
|
****
|
****
|
****
|
|
|
14/16
|
Nectopsyche
White Miller Caddis |
|
|
|
|
**
|
****
|
****
|
****
|
****
|
****
|
|
|
20/22
|
Baetis cingulatus
Blue Wing Olive Mayfly |
|
|
|
|
**
|
****
|
****
|
****
|
|
|
|
|
14/16
|
Ephemerella invaria
True Hendrickson Mayfly |
|
|
|
|
*X
|
X***
|
*** |
|
|
|
|
|
14/16
|
Ephemerella rotunda
Light Hendrickson Mayfly |
|
|
|
|
**
|
***
|
|
|
|
|
|
|
10/12
|
Stenonema vicarium
American March Brown Mayfly |
|
|
|
|
**
|
****
|
** |
|
|
|
|
|
12/14
|
Stenonema fuscum
Sand Drake Mayfly |
|
|
|
|
*
|
XX**
|
** |
|
|
|
|
|
12/14
|
Siphlonurus rapidus
Early Gray Drake Mayfly |
|
|
|
|
*
|
X** |
|
|
|
|
|
|
10/12
|
Ephemera simulans
Brown Drake Mayfly |
|
|
|
|
*
|
XX**
|
* |
|
|
|
|
|
8/10
|
Phryganlidae ptilostomis
Great Orange Sedge Caddis |
|
|
|
|
|
****
|
****
|
|
|
|
|
|
8/12
|
Green Oak Worm/Greenie Worm
Caterpiller |
|
|
|
|
|
*XX*
|
* |
|
|
|
|
|
20/28
|
Diptera
Midges |
|
|
|
|
|
****
|
****
|
****
|
****
|
****
|
|
|
10/12
|
Isonychia sadleri
Mahogany Dun Mayfly |
|
|
|
|
|
**X
|
XX**
|
|
|
|
|
|
6/8
|
Hexagenia limbata
Great Olive Winged Drake Mayfly |
|
|
|
|
|
**X
|
X** |
|
|
|
|
|
10/12
|
Isonycha bicolor
White Gloved Howdy Mayfly |
|
|
|
|
|
***
|
****
|
****
|
*** |
|
|
|
12/14
|
Stenonema canadense
Light Cahill Mayfly |
|
|
|
|
|
**
|
****
|
* |
|
|
|
|
10/12
|
Sephlonurus alternatus
Late Gray Drake Mayfly |
|
|
|
|
|
**
|
XX**
|
|
|
|
|
|
10/12
|
Ephemera varia
Golden Drake Mayfly |
|
|
|
|
|
**
|
****
|
* |
|
|
|
|
6/8
|
Paragentina media
Big Golden Stonefly |
|
|
|
|
|
*
|
****
|
* |
|
|
|
|
14/18
|
Ephemerella lata
Slate Winged Olive Mayfly |
|
|
|
|
|
*
|
****
|
*** |
|
|
|
|
22/24
|
Pseudocloen anoka
Tiny Blue Winged Olive Mayfly |
|
|
|
|
|
*
|
****
|
****
|
****
|
|
|
|
18/20
|
Ephemerella simplex
Dark Slate Wing Olive Mayfly |
|
|
|
|
|
*
|
****
|
****
|
****
|
|
|
|
8/24
|
Terrestrials
Ants/Grasshoppers/Beetles/Jasids |
|
|
|
|
|
*
|
****
|
****
|
****
|
****
|
|
|
24/26
|
Tricorythodes stygiatus
Tiny White Wing Black Mayfly |
|
|
|
|
|
|
***
|
****
|
****
|
****
|
|
|
16/18
|
Paraleptophlebia debilis
Small Slate Mahogany Dun Mayfly |
|
|
|
|
|
|
*
|
****
|
****
|
****
|
|
|
18/20
|
Mystocides sepulchralis
Black Dancer Caddisfly |
|
|
|
|
|
|
|
****
|
****
|
|
|
|
22/24
|
Baetis pygmalus
Little Medium Olive Mayfly |
|
|
|
|
|
|
|
***
|
****
|
|
|
|
12/14
|
Ephoron album
White Fly Mayfly |
|
|
|
|
|
|
|
**
|
****
|
|
|
|
14/16
|
Baetis heimalis
Slate Wing Brown Mayfly |
|
|
|
|
|
|
|
|
****
|
****
|
|
