A Taxonomist's Notebook

#365Insects 97: #Clusia czernyi Johnson, 1913

Druid flies are fairly unusual among acalyptrate flies in that males of several genera are known (or suspected) to lek. Males have been observed defending territories unassociated with feeding or larval habitats, sparring off face to face or even elbow to elbow in an effort to impress the ladies. (at University of Guelph)