Lovebug
Guides
Bibio femoratus
March fly, Lovebug
Bibio femoratus is a medium-sized fly in the family Bibionidae, commonly known as the March fly or lovebug in the southeastern United States. Adults are recognized by their black bodies with orange or red thorax and legs, and a diagnostic dark spot on the leading edge of the wing. The species forms conspicuous mating swarms in early spring, with pairs remaining coupled for extended periods. Larvae develop in soil and feed on decaying organic matter.
Plecia americana
American Lovebug
Plecia americana, commonly known as the American Lovebug, is a species of march fly in the family Bibionidae. This species is part of a genus known for conspicuous mating behavior where males and females remain conjoined in copula for extended periods, often flying together as a pair. Adults are small flies with distinctive sexual dimorphism in head morphology. The species is known from the southeastern United States, where adults emerge in seasonal swarms.