A Revision of the Nearctic Species of the Genus Phronia (Diptera: Mycetophilidae)

Authors

Raymond Gagne, Systematic Entomology Laboratory, PSI, Agricultural Research Service, USDA, c/o U. S. National Museum NHB 168, P.O. Box 37012, Washington, DC 20013-7012, USAFollow

Date of this Version

1975

Comments

Published in TRANS. AMER. ENT. SOC., VOL. 101. 1975.

Abstract

Phronia contains 86 species of small, brown or black mycetophilids. Adults of these fungus gnats are most often caught flying above the forest floor, especially along damp ravines. The fungivorous larvae have been found grazing on slime molds growing on the surface of decaying logs. Most species occur in the Holarctic region, but 1 described and several undescribed species are known from the Ethiopian region. In North America, there are 49 species, 33 of which are known also from Europe.