This database contains 4842 images of 1613 specimens of 29 taxa of
EPTs: Ephemeroptera (mayflies), Plecoptera (stoneflies), and
Trichoptera (caddisflies). The data are available for download in the
Segmented bugs aligned to canonical pose. The alignment was
performed by fitting an ellipse to the segmented bug and then scoring
the two possible orientations of the major axis using a trained SVM.