BugFinder Insects by State Spiders Butterflies & Moths Bees, Ants, & Wasps Beetles All Bugs Videos (YouTube)

Four-spot Sap Beetle (Glischrochilus quadrisignatus)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Four-spot Sap Beetle

Loading SVG image placeholder
Image Credit: Michael O.
Full-sized image of the Four-Spot-Sap-Beetle Thumbnail image of the Four-Spot-Sap-Beetle

The varied diet of the Four-spot Sap Beetle makes them both friend and foe of the backyard gardener.

Updated: 01/03/2022; Authored By Staff Writer; Content ©www.InsectIdentification.org
Four-spot Sap Beetles feed on the larvae of tree-boring beetles. This makes them somewhat of an aborist's ally in maintaining tree health. They can become a nuisance, however, if they catch the scent of spoiling vegetation in the garden. This species of beetle will take advantage of overwhelmed gardeners. When fruits and vegetables are left on the vine to rot, or fall victim to a disease and begin to spoil, they release volatile chemicals into the air. The Four-spot Sap Beetle senses this aroma and will descend on the dying fruit/vegetable to feed on the residues. Where there is one Four-spot Sap Beetle feeding, there are others on their way. This can lead to an infestation. Though they do not attack healthy produce, their large numbers can quickly get out of control and make them a difficult pest to eliminate. Since they do not feed on healthy fruits and vegetables, preventative spraying of insecticide on plants as they grow does not prevent the beetle from coming. Only good garden maintenance stops the beetle from finding a produce patch. Removing diseased, spoiled and rotting produce at regular intervals effectively prevents the beetle from discovering a garden.

Adult females will lay eggs on decaying plant matter after they emerge from overwintering. The eggs hatch sometime in June or July, and the larvae feed on whatever plant material is near them until they pupate. Once they become adults, they seek out food sources. Vegetation damaged earlier in the season by other types of insects, like beetle or moth larvae, allow the Four-spot Sap Beetle to immediately begin feeding at the areas of the existing wounds. They are secondary invaders of many types of important agricultural crops like corn and strawberries. Large numbers of them have been known to spread a fungal infection to the crops which further reduces a healthy harvest.©InsectIdentification.org

Note: The above text is EXCLUSIVE to the site www.InsectIdentification.org. It is the product of hours of research and work made possible with the help of contributors, educators, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at InsectIdentification AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

General Characteristics

Capability, Shape, Texture/Pattern, Benefits, Dangers
Garden pest insect icon
Patterned insect icon
Pest insect icon
Rounded insect body icon

Taxonomic Hierarchy

Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Coleoptera
        Family: Nitidulidae
View More
          Genus: Glischrochilus
View More
            Species: quadrisignatus

Identifying Information

Size, Colors, Features
Scientific Name: Glischrochilus quadrisignatus
Other Name(s): Picnic Beetle
Category: Beetle
Size (Adult; Length): 6mm to 11mm (0.23" to 0.43")
Colorwheel Graphic Colors: black; red
Descriptors: spots; round; garden pest

Relative Size Comparison

Typical Size Between 6mm (0.2in) and 11mm (0.4in)
Lo: 6mm
Md: 8.5mm
Hi: 11mm

Territorial Map*

U.S., Canada, and Mexico
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
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Four-spot Sap Beetle may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Four-spot Sap Beetle. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.
Site Disclaimer  |  Privacy Policy  |  Cookies  |  Sitemap
Beetle Identification Butterfly Identification Caterpillar Identification Spider ID Fungal Infections on Insects Nursery Web Spider Official State Insects Termite Basics Insect Molting Process Bugs of Tennessee House Centipede JoroSpider.org

2024 www.InsectIdentification.org • Content ©2006-2024 InsectIdentification.org • All Rights Reserved. The InsectIdentification.org logo, its written content, and watermarked photographs/imagery are unique to this website (unless where indicated) and is protected by all applicable domestic and international intellectual property laws. Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (regarding bites, etc...).Please consult licensed, degreed professionals for such information. By submitting images to us (InsectIdentification.org) you acknowledge that you have read and understood our Site Disclaimer as it pertains to "User-Submitted Content". Images in JPG format are preferred with a minimum horizontal dimension of 1000px if possible. When emailing please include your location and the general estimated size of the specimen in question if possible. Please direct all inquiries and comments to insectidentification AT gmail.com. No A.I. was used in the generation of this content.

©2024 www.InsectIdentification.org • All Rights Reserved • Content ©2006-2024 (18yrs)