Yellow Fly Of The Dismal Swamp

Most commonly found in cypress and mangrove swamp habitats.

Females attack in much the same manner as species of Chrysops.

Distribucion en Costa Rica:
Distribucion General: Southeastern U.S.A. to Costa Rica; Bahama Islands.

Females are serious pests of mammals including humans, inflicting very painful bites.

Immature stages have been collected from cypress root mats near lake margins, and from moss and debris on floating logs and from moss growing on the edges of large lakes.

Hind tibiae without apical spurs; basicosta without strong setae; third antennal segment with at most an acute dorsobasal angle; tibiae not or only slightly inflated; wings not glass clear or abdomen drawn out into an elongated point; mesopleura shiny or pearly tomentose in contrast to the rest of the pleuron; labella unsclerotized; frontoclypeus shiny and inflated; wings with subapical dark patch; mesoscutum wholly yellow-brown tomentose, without a broad median black shiny stripe.

Localidad del tipo: U.S.A., Carolina.
Depositario del tipo: Holotype female lost.
Recolector del tipo:

This species can be extremely abundant and pestiferous.