The tab separated file contains information on photometric and flow cytometic genome size scoring for 48 male grasshoppers Chorthippus biguttulus. IndID = Individual identifier. pgDNAperNucl_Average = Average of the two photometric measurements in pg DNA per nucleus. FlowCytometricScores = Flow cytometric genome size scores. FlowCytometricScores_SD = Standard deviation of flow cytometric genome size scores.