Family Hydropsychidae - Netspinning Caddisflies The information below is based on images submitted and identified by contributors. Range and date information may be incomplete, overinclusive, or just plain wrong.
Contributed Images Map | No Images Images |  | Credits: Generated with MapServer. BugGuide integration kindly provided by Mike Boone. |
Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable. | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Alabama | | |  |  |  |  |  | | | | | |
Alberta | | | |  | |  |  | | | | | |
Arizona | |  |  |  |  |  |  |  |  |  | | |
Arkansas | | | | | | |  | | | | | |
British Columbia |  | | | | | |  |  | | | | |
California | | |  |  |  |  |  |  |  |  |  |  |
Colorado | |  | |  | |  |  |  |  | | | |
Connecticut | | | | | |  | |  | | | | |
Delaware | | | | | | |  | | | | | |
Florida |  | |  | |  | |  | |  |  | | |
Georgia | | |  |  |  |  | | |  |  | | |
Illinois | | | |  |  |  |  |  |  | | | |
Indiana | | |  | | | |  |  | | | | |
Iowa | |  | | |  | |  |  |  | | | |
Kansas | | | | |  |  |  | | | | | |
Kentucky | | | | |  | | |  | | | | |
Louisiana | | | |  |  |  |  |  |  |  | | |
Maine | | | | |  |  |  |  |  | | | |
Manitoba | | | | | |  | | | | | | |
Maryland | | |  |  |  |  |  |  |  | | | |
Massachusetts | |  | |  |  |  |  |  |  | | | |
Michigan | | | |  |  | |  |  | | | | |
Minnesota |  | | | | |  |  |  | | | | |
Mississippi | | | | |  | | | | | | | |
Missouri | | | |  |  | | | | |  | | |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Montana | | | |  | | |  |  | | |  | |
Nebraska | |  | | | |  |  |  | | | | |
Nevada |  | | | |  |  | | | | | | |
New Brunswick | | | | | | |  |  | | | | |
New Hampshire | | | |  |  |  |  |  | | | | |
New Jersey | | | | |  |  |  |  | | | | |
New Mexico | | | |  | | | | | | | | |
New York | | | |  |  |  |  |  |  | | | |
Newfoundland/Labrador | | | | | | |  |  | | | | |
North Carolina | | | |  | |  | |  | | | |  |
North Dakota | | | | |  |  |  |  | | | | |
Nova Scotia | | | | | | | |  | | | | |
Ohio | | | | |  |  |  |  |  | | | |
Oklahoma | | | |  |  | |  |  |  |  | | |
Ontario |  |  | | |  |  |  |  |  | |  | |
Oregon | | | | |  |  |  |  |  | | | |
Pennsylvania | | | | |  |  |  |  |  | | | |
Quebec | | | | |  |  |  |  |  |  | | |
Rhode Island | | | | | | | |  | | | | |
South Carolina | | | | |  | |  | | | | | |
Tennessee | |  | |  |  | | |  | | | | |
Texas | |  |  |  |  |  |  |  |  |  |  |  |
Utah | | |  | | |  |  |  | | | | |
Vermont | | | | |  |  |  |  | | | | |
Virginia | |  |  |  |  |  |  |  |  |  | | |
Washington | | | | | | |  | |  |  | | |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | West Virginia | | | | | |  | | | | | | |
Wisconsin | | | | |  |  |  |  |  | | | |
Wyoming | | | | | | |  | | | | | |
Yukon Territory | | | | | |  |  | | | | | |
|