Conifer-forests
Guides
Lauxanioidea
Lauxanioidea is a superfamily of true flies (Diptera) comprising three families: Lauxaniidae, Chamaemyiidae, and Celyphidae. Members are small to medium-sized flies, often densely bristled and variably colored. The superfamily is defined by three synapomorphies: convergent postocellar bristles, an abbreviated anal wing vein, and fusion of male abdominal tergites 7 and 8. Lauxaniidae and Celyphidae are sister groups based on molecular phylogenetics. Ecologically, the families diverge sharply: Chamaemyiidae are predators of Sternorrhyncha (aphids, scale insects, adelgids), while Lauxaniidae and Celyphidae larvae primarily feed on decaying vegetation.