This data contains physical measurements on three species of flea beetles.
data(flea)A data frame with 74 rows and 7 variables
species Ch. concinna, Ch. heptapotamica, Ch. heikertingeri
tars1 width of the first joint of the first tarsus in microns
tars2 width of the second joint of the first tarsus in microns
head the maximal width of the head between the external edges of the eyes in 0.01 mm
aede1 the maximal width of the aedeagus in the fore-part in microns
aede2 the front angle of the aedeagus (1 unit = 7.5 degrees)
aede3 the aedeagus width from the side in microns
Lubischew, A. A. (1962), On the Use of Discriminant Functions in Taxonomy, Biometrics 18:455-477.