Comparative data for dance fly eye morphology and female ornamentation

These data were collected as part of a comparative study of the
relationship between female ornamentation and sexual dimorphism in eye
morphology. Data come from specimens collected in the field in Scotland
near Loch Lomond in the summers of 2009, 2010, and 2011 as well as the
summer of 2012 near Glen Williams in Ontario, Canada. The repository
contains raw image files including information on magnifications at which
these were taken, excel spreadsheets of morphological measurements taken
from these images, a dataset from search of Collin’s (1961) key to the
Empidinae for reports of sexual dimorphism and exaggerations of male eye
morphology, and an R notebook file detailing the analytical steps taken.