Subphylum Crustacea - Crustaceans
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 | | | | | | | | | | | | |
| Alaska | | | | | | | | | | | | |
| Alberta | | | | | | | | | | | | |
| Arizona | | | | | | | | | | | | |
| Arkansas | | | | | | | | | | | | |
| British Columbia | | | | | | | | | | | | |
| California | | | | | | | | | | | | |
| Colorado | | | | | | | | | | | | |
| Connecticut | | | | | | | | | | | | |
| Delaware | | | | | | | | | | | | |
| District of Columbia | | | | | | | | | | | | |
| Florida | | | | | | | | | | | | |
| Georgia | | | | | | | | | | | | |
| Idaho | | | | | | | | | | | | |
| Illinois | | | | | | | | | | | | |
| Indiana | | | | | | | | | | | | |
| Iowa | | | | | | | | | | | | |
| Kansas | | | | | | | | | | | | |
| Kentucky | | | | | | | | | | | | |
| Louisiana | | | | | | | | | | | | |
| Maine | | | | | | | | | | | | |
| Manitoba | | | | | | | | | | | | |
| Maryland | | | | | | | | | | | | |
| Massachusetts | | | | | | | | | | | | |
| Michigan | | | | | | | | | | | | |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | | Minnesota | | | | | | | | | | | | |
| Mississippi | | | | | | | | | | | | |
| Missouri | | | | | | | | | | | | |
| Montana | | | | | | | | | | | | |
| Nebraska | | | | | | | | | | | | |
| Nevada | | | | | | | | | | | | |
| New Brunswick | | | | | | | | | | | | |
| New Hampshire | | | | | | | | | | | | |
| New Jersey | | | | | | | | | | | | |
| New Mexico | | | | | | | | | | | | |
| New York | | | | | | | | | | | | |
| Newfoundland/Labrador | | | | | | | | | | | | |
| North Carolina | | | | | | | | | | | | |
| North Dakota | | | | | | | | | | | | |
| Northwest Territories | | | | | | | | | | | | |
| Nova Scotia | | | | | | | | | | | | |
| Ohio | | | | | | | | | | | | |
| Oklahoma | | | | | | | | | | | | |
| Ontario | | | | | | | | | | | | |
| Oregon | | | | | | | | | | | | |
| Pennsylvania | | | | | | | | | | | | |
| Prince Edward Island | | | | | | | | | | | | |
| Quebec | | | | | | | | | | | | |
| Rhode Island | | | | | | | | | | | | |
| Saskatchewan | | | | | | | | | | | | |
| South Carolina | | | | | | | | | | | | |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | | South Dakota | | | | | | | | | | | | |
| Tennessee | | | | | | | | | | | | |
| Texas | | | | | | | | | | | | |
| Utah | | | | | | | | | | | | |
| Vermont | | | | | | | | | | | | |
| Virginia | | | | | | | | | | | | |
| Washington | | | | | | | | | | | | |
| West Virginia | | | | | | | | | | | | |
| Wisconsin | | | | | | | | | | | | |
| Wyoming | | | | | | | | | | | | |
| Yukon Territory | | | | | | | | | | | | |
|
