Text file containing data for the following variables: id = individual fly used in the study development = larval acclimation temperature (16 C or 26C) treatment = adult acclimation temperature (16 C or 26C) pop = source of fly genotypes (RFM = North Carolina; BEA = Indiana; VT = Vermont) line = isofemale line of flies size = mean centroid size of wings for isofemale line eggs = number of eggs laid in 24 h (daily fecundity) temp = body temperature during measurement of fecundity