They’re called mosquito hawks, mosquito eaters, and skeeter eaters. They look like giant mosquitoes on stilts. And despite their terrifying appearance, they’re completely harmless to humans – and barely effective against mosquitoes despite what their name implies. These gangly insects are actually crane flies, and almost everything people believe about them is wrong.
Quick Answer
- Mosquito hawks are crane flies (family Tipulidae), not giant mosquitoes or mosquito predators
- They do NOT eat mosquitoes. Most adult crane flies don’t eat at all – they live only a few days to mate and die
- They cannot bite or sting humans. They have no functional mouthparts capable of biting
- They’re harmless and don’t need to be killed. They’re clumsy fliers attracted to lights
- Their larvae (leatherjackets) live in soil and can sometimes damage lawns by feeding on grass roots
What Are Mosquito Hawks, Really?
Crane flies belong to the family Tipulidae, one of the largest families of flies with over 15,000 known species worldwide. They’re often mistaken for giant mosquitoes because of their long legs and slender bodies, but they’re in a completely different family from mosquitoes (Culicidae).
| Feature | Crane Fly (Mosquito Hawk) | Mosquito |
|---|---|---|
| Size | 15-25mm body, up to 60mm wingspan | 3-6mm body, 5-8mm wingspan |
| Legs | Extremely long, fragile, break easily | Long but proportional |
| Flight | Clumsy, slow, bumbling | Agile, precise, buzzing |
| Proboscis | Short, non-functional (most species) | Long, needle-like, piercing |
| Biting | Cannot bite | Females bite and feed on blood |
| Diet (adult) | Nectar or nothing (most don’t eat) | Females: blood + nectar; Males: nectar only |
| Lifespan (adult) | 2-15 days | 2-4 weeks (females) |
Do Mosquito Hawks Actually Eat Mosquitoes?
No. Despite the common name “mosquito hawk” or “mosquito eater,” crane flies do not eat mosquitoes. This is one of the most persistent insect myths.
Most adult crane flies have vestigial or non-functional mouthparts and don’t eat anything during their brief adult lives. The few species that do feed as adults consume nectar, not other insects. They are physically incapable of catching and consuming mosquitoes.
The name likely originated because crane flies are often seen in the same environments as mosquitoes (near water, in humid areas) and their superficial resemblance to giant mosquitoes led people to assume they were predators.
Can Mosquito Hawks Bite?
No. Crane flies cannot bite humans, pets, or anything else. Their mouthparts are either absent, vestigial, or designed only for sipping nectar from flowers. They have no ability to pierce skin, and they produce no venom or saliva that could cause a reaction.
If a crane fly lands on you, it’s either resting or confused. They’re notoriously poor fliers – those long, fragile legs make them clumsy in the air, and they often crash-land on whatever surface they encounter.
Should You Kill Mosquito Hawks?
There’s no practical reason to kill crane flies. They’re harmless to humans, don’t spread diseases, can’t bite, and their adult lives last only a few days anyway.
That said, if large numbers of crane flies are getting into your home (they’re strongly attracted to porch lights and outdoor lighting), you can reduce their presence by switching to yellow or sodium vapor outdoor lights, which are less attractive to flying insects. Keeping doors and windows screened during warm evenings also helps.
The one exception: crane fly larvae (called leatherjackets) live in soil and feed on grass roots, and large populations can damage lawns. If you notice irregular brown patches in your lawn during spring, leatherjackets may be the cause. A biological control product containing beneficial nematodes (like NemAttack) can treat leatherjacket infestations without chemicals.
Insects That Actually DO Eat Mosquitoes
If you’re looking for natural mosquito control, these insects are the real predators:
- Dragonflies: Both adults and larvae are voracious mosquito eaters. A single dragonfly can consume hundreds of mosquitoes per day.
- Damselflies: Smaller relatives of dragonflies that also prey on mosquitoes
- Bats: A single little brown bat can eat 1,000+ mosquitoes per hour
- Purple martins: These colonial swallows consume significant numbers of mosquitoes during breeding season
- Mosquitofish (Gambusia): Specifically introduced into standing water to consume mosquito larvae
Key Takeaways
- Mosquito hawks are crane flies, not giant mosquitoes or mosquito predators. They cannot bite, sting, or eat mosquitoes.
- Most adult crane flies don’t eat at all – they live only 2-15 days, just long enough to mate and lay eggs.
- There’s no reason to kill crane flies. They’re completely harmless to humans and serve as food for birds and other wildlife.
- For actual natural mosquito control, encourage dragonflies, bats, and mosquitofish rather than relying on crane flies.
- Crane fly larvae (leatherjackets) can damage lawns but are easily controlled with beneficial nematode treatments.
