Love Bug
Paired black-and-red flies that swarm twice a year across Central Florida highways.
Love Bug (Plecia nearctica) is a low-concern pest in Florida homes and yards. Rhino Pest Management is a licensed (#JB242881) and insured general pest control company serving Florida's Treasure & Space Coast, rated 5.0★ by 16 Google reviewers. The estimate is always free — (772) 589-6842.
Photo: no rights reserved (CC0) · iNaturalist
About 6–9 mm, black with a red thorax. Famous for flying in mating pairs, joined end-to-end, during swarming events. Sluggish fliers that drift with the wind.
Roadsides, meadows, and anywhere decomposing plant matter provides larval habitat. Swarms peak near highways and open fields during their two annual flight periods.
- Dense swarms of paired black-red flies in May and September
- Flies plastered to car grilles, hoods and windshields
- Slow, drifting insects appearing en masse — then gone within days to weeks
Love bugs don't bite, sting or spread disease. The main hazard is vehicle paint damage — their acidic body fluids etch car paint if left on in Florida's heat for more than a day or two.
Is this urgent?
No. Love Bug is a nuisance, not a threat to your health or your house. Most people fold it into a regular service visit rather than booking a special trip. If the numbers keep climbing after you've dealt with the moisture and food sources, that's when it's worth a call.
Love bug swarms are seasonal and temporary. Rhino can treat exterior areas where they accumulate, but the most effective protection is a vehicle wax coat and quick washing after swarming.
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Scientific source
For the biology behind this page, the University of Florida's IFAS Extension publishes a detailed Featured Creatures profile of this species — free to read, and written by entomologists in this state:
Lovebug Plecia nearctica Hardy — UF/IFAS Extension