Grasshoppers on the go make migratory stop in Las Vegas area

This Thursday, July 25, 2019, photo shows grasshoppers on a sidewalk outside the Las Vegas Sun offices in Henderson, Nev. A migration of mild-mannered grasshoppers sweeping through the Las Vegas area is being attributed to wet weather several months ago. (Steve Marcus/Las Vegas Sun via AP)

This Thursday, July 25, 2019, photo shows grasshoppers on a sidewalk outside the Las Vegas Sun offices in Henderson, Nev. A migration of mild-mannered grasshoppers sweeping through the Las Vegas area is being attributed to wet weather several months ago. (Steve Marcus/Las Vegas Sun via AP)

LAS VEGAS (AP) — A migration of mild-mannered grasshoppers sweeping through the Las Vegas area is being attributed to wet weather several months ago.

Nevada state entomologist Jeff Knight told reporters on Thursday the number of adult pallid-winged grasshoppers traveling north to central Nevada is unusual but not unprecedented and they pose no danger.

Knight says the insects don’t carry disease, don’t bite, and probably won’t damage anybody’s yard before they’re gone in several weeks.

He says they’re usually attracted to ultraviolet light sources.

Knight recalls several similar migrations in his more than 30 years at the state Department of Agriculture, including one about six or seven years ago.

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This year, the Las Vegas area recorded more rain in six months than the annual average of just under 4.2 inches (10.7 centimeters) per year.