monograph of Trichonta with a model for the distribution of Holarctic Mycetophilidae (Diptera)
By: by Raymond J. Gagnacutee.
Contributors: United States. Science and Education Administration.
Series: Technical bulletin -- no. 1638.; Technical bulletin (United States. Dept. of Agriculture) -- no. 1638.
Publisher: U.S. Dept. of Agriculture, Science and Education Administration
Published: 1981
Place of publication: Washington, D.C
Language: eng
Number of pages: 64
Subjects: Diptera -- Identification.; Insects -- Geographical distribution.; Fungus gnats.
Notes: "Issued September 1981"--P. [2]

Bibliography: p. 31-33.