Jeff Hahn, Univ. of MN Extension
Photo 1: Six-spotted tiger beetle, a common insect in May and June.
This beetle measures about ½ inch in length. It really stands out because it is an iridescent green or blue-green. It also has six white spots, although that number can vary. The six-spotted tiger beetle has conspicuous sickle-shaped mandibles (jaws) and large bulging eyes on the side of its head.
The six-spotted tiger beetle is present in Minnesota from May into early July. It is very active, moving rapidly in short bursts. It is common to see it run rapidly or fly a short distance. As one might suspect from the large eyes and the powerful jaws, this insect is a predator on all types of insects.
Jeff Hahn, Univ. of MN Ext
Photo 1: Emerald ash borer, a slimmer and slower insect than a six-spotted tiger beetle
These two insects can be distinguished by the shape of their bodies; EAB is slender, gradually tapering to the tip of its abdomen while the wing covers of a six-spotted tiger beetle are wider than its head. Also a six-spotted tiger beetle is much faster than an EAB. See also EAB look-a-likes. If there is any doubt whether an insect is an EAB, capture it and take a picture and submit it to "The Arrest the Pest Line", Arrest.the.Pest@state.mn.us