Möhn, E., 1961.: - Gallmücken (Diptera, Itonididae) aus El Salvador, 4. Zur Phylogenie der Asphondyliidi der neotropischen und holarktischen Region. (Ergebnisse der Forschungsreise E. Möhn 1956 nach El Salvador. Nr. 6.)

Senckenberg. niol., 42(3): pp. 131-330, 152 figs., refs. Journal issue, orig. wrappers., uncut.

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