Insect Identification logo
Icon of a spider
Icon of a beetle insect
Icon of a butterfly
Icon of a bee
Icon of the Bugfinder utility

Small Minnow Mayfly (Callibaetis picta)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Small Minnow Mayfly.

 Updated: 2/3/2014; Authored By Staff Writer; Content ¬©www.InsectIdentification.org




Small Minnow Mayflies are tiny meals to the trout that love them. They are also useful in telling biologists the level of pollution in water.



Small Minnow Mayflies are a favorite among trout. The fish gobble the Mayflies up in the process of surfacing. Because of this, a model of the Small Minnow Mayfly is one of the more popular artificial baits made for fly fishermen. Small Minnow Mayflies are attracted to water sources and live much of their lives near them.

These tiny insects are sensitive to pollution. Even small amounts will kill a population, so seeing a healthy number of Small Minnow Mayflies means the water is clean. A stream that sees a fast decline in this insect's population may be experiencing some form of chemical pollution.

Small Minnow Mayflies look very much like other Mayflies. Their abdomen is tipped with the two long, thin filaments. Two sets of wings allow the Small Minnow Mayfly to fly, though the second set - the hind wings - are much smaller than the first set. Wings are clear, but may be patterned with opaque black patches around the edges.

These Mayflies are active during the warm months of the year and range throughout the western parts of North America. This particular species produces multiple generations per year and will appear more so during the early and middle hours of the day.




Taxonomic Hierarchy
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Ephemeroptera
        Family: Baetidae
          Genus: Callibaetis
            Species: picta
Identifying Information
Scientific Name: Callibaetis picta
Other Name(s): Mayfly
Category: Mayfly
Size (Adult; Length): 6mm to 12mm (0.23in to 0.47in)
Colorwheel Graphic Colors: white, brown, gray
Descriptors: flying, helpful
Territorial Map
Alaska  
Hawaii  
Prince Edward Is.  
State of Alabama graphic
State of Arizona graphic
State of Arkansas graphic
State of California graphic
State of Colorado graphic
State of Delware graphic
State of Florida graphic
State of Georgia graphic
State of Idaho graphic
State of Illinois graphic
State of Indiana graphic
State of Iowa graphic
State of Kansas graphic
State of Kentucky graphic
State of Louisiana graphic
State of Maine graphic
State of Maryland graphic
State of Michigan graphic
State of Minnesota graphic
State of Mississippi graphic
State of Missouri graphic
State of Montana graphic
State of Nebraska graphic
State of Nevada graphic
State of New England graphic
State of New Jersey graphic
State of New Mexico graphic
State of New York graphic
State of North Carolina graphic
State of North Dakota graphic
State of Ohio graphic
State of Oklahoma graphic
State of Oregon graphic
State of Pennsylvania graphic
State of South Carolina graphic
State of South Dakota graphic
State of Tennessee graphic
State of Texas graphic
State of Utah graphic
State of Virginia graphic
State of Washington graphic
State of West Virginia graphic
State of Wisconsin graphic
State of Wyoming graphic
Canadian territory of Alberta graphic
Canadian territory of British Columbia graphic
Canadian territory of Manitoba graphic
Canadian territory of New Brunswick graphic
Canadian territory of Newfoundland and Labrador graphic
Canadian territory of Ontario graphic
Canadian territory of Quebec graphic
Canadian territory of Saskatchewan graphic
Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic


Territorial Reach (A-to-Z)
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delware
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Canadian National Flag Graphic
Alberta
British Columbia
Manitoba
New Brunswick
Newfoundland and Labrador
Nova Scotia
Ontario
Prince Edward Island
Quebec
Saskatchewan
Mexican National Flag Graphic
Mexico
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.