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Extension > Garden > Diagnose a problem > What insect is this? > General/curiosity insects > Insects with obvious wings: greater than 1 inch long or wingspan is 2 inches or more > Great black wasp

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Great black wasp

Sphex pennsylvanicus

Aster leafhopper

David Cappaert, Michigan State University,

Aster leafhopper

Karl Foord, University of Minnesota

Size: 1 - 1 1/4 inch long

Description: Wasp in iridescent violet-black with smoky black wings with a violet sheen.

Where/When: Found on perennials. Active July to September.

Significance: Has a stinger but is not aggressive and rarely stings (it can sting if disturbed).

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