Crane flies are invading Louisiana. Here’s why you shouldn’t kill the insects.

Have you been noticing a few extra long-legged insects flying around in the past few weeks? You aren’t alone. 

Crane flies, also commonly called mosquito hawks, have recently been swarming across parts of Louisiana. 

Don’t fret though, experts say. It’s pretty normal for this time of year.

South Louisiana sees a large emergence of adult crane flies every year in February and March, according to Zack Lemann, curator of animal collections at the Audubon Insectarium. 

And though it may seem to some like we’re seeing way more crane flies buzzing around than in past years, Lemann said that’s likely not the case. 

“In spite of the pronged drought in 2023 and large volumes of rain that followed starting in December of last year, the weather we have had should not have affected local populations of this insect. So, to my eyes, this is a normal late winter for crane flies,” said Lemann.

Early spring in Louisiana is also a prime mating time for crane flies, according to the Louisiana State University’s College of Agriculture’s website.

And though they’re sometimes known as mosquito hawks, it’s actually a myth that crane flies eat mosquitos, says Lemann. As adults, cranes flies feed on nectar or sometimes refrain from eating at all.

Still, they are a valuable part of the local ecosystem, serving as as an important food source for birds, lizards and other insects, according to the LSU Ag Center. 

Crane flies aren’t considered to be pests in the state and it’s not recommended to exterminate them.

If you want to cut down on the number of crane flies you’re seeing in an around your home, LSU Ag Center recommends turning off lights and sealing points of entry, such as loose-fitting doors. 

As far as actual mosquitos go, spring is also an active season for them. If you’re noticing more of those in your yard, experts recommend getting rid of any standing water outside, keeping your yard trimmed and hiring a professional to spray.