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Margined Blister Beetle (Epicauta funebris)

Detailing the identifying qualities of the Margined Blister Beetle, including physical features and territorial reach.

 Updated: 8/4/2017; Authored By Staff Writer; Content ¬©

  Margined Blister Beetle  
Picture of Margined-Blister-Beetle

The Margined Blister Beetle is as black as ebony, but for a thin white line that runs down the middle of the elytra.

The Margined Blister Beetle can secrete a chemical called cantharidin when threatened. This secretion causes blisters to human skin and can injure an insect predator. This beetle feeds on plant tissue so contact with potential enemies is likely. It may be a garden pest in large numbers and handling individuals may best be avoided.

Margined Blister Beetle Information

Category: Beetle
Common Name: Margined Blister Beetle
Scientific Name: Epicauta funebris
Other Name(s): Ebony Blister Beetle

Taxonomy Hierarchy

 Arrow graphic Kingdom: Animalia
  Arrow graphic Phylum: Arthropoda
   Arrow graphic Class: Insecta
    Arrow graphic Order: Coleoptera
     Arrow graphic Family: Meloidae
      Arrow graphic Genus: Epicauta
       Arrow graphic Species: funebris

Size, Identifying Tags and Territorial Reach

Size (Adult, Length): Size (Adult, Length): 12 mm to 17 mm (0.468 inches to 0.663 inches)
Identifying Colors: black, white, gray
Additional Descriptors: line, center, middle, flying, secretion, burn

North American Territorial Reach (Though Not Limited To): Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; 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; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Saskatchewan; Mexico

A Note About Territorial Reach: Keep in mind that 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. Insects are driven by environmental factors, food supplies and mating patterns and do not nescessarily work within hard-and-fast territorial lines like we humans do.

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