About Scoliid wasps
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Scoliid wasps, also called digger wasps, are a type of ground nesting wasp.
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Scoliid wasps are about 5/8 inch long, blue black, with blackish purple wings. There are two yellow stripes, one on each side of the abdomen.
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Their bodies are fairly hairy and the back part of the abdomen is covered with reddish hairs.
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They are generally seen flying in large numbers over lawns during the day, leaving in early evening.
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Scoliids are beneficial wasps parasitic on grubs. They are not aggressive and generally do not attack people. They disappear at the end of the season.
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Adults are often seen visiting golden rod flowers in late summer.
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Control is not necessary or recommended.