Common Name: Black Blister Beetle Latin Name:
Epicauta pennsylvanica (De Geer, 1775)
(R. Bercha, det.)
Length: 10 - 20 mm
Range: Throughout Alberta
Habitat:
Various
Time of year seen: Mid-summer
(Additional
Sightings)
Diet: Foliage and flowers
Other: Blister Beetles get their name from the toxic
cantharidin body fluid they leak from their leg joints when disturbed.
If this fluid comes in contact with skin it can cause blistering.
Black Blister Beetles are typically found in groups feeding on an assortment
of plants including alfalfa, sunflower, sugarbeets, amaranthus, ester,
nightshade, sage and yarrow. Eggs are laid in the soil. Upon
hatching the larva seek out grasshopper egg pods consuming as many as 40
eggs, before over wintering in the soil to pupate and emerge the next
spring. There is one generation per year. (Blodgett
et al, 2010 & White, 1983) |