Variation among male G. texensis in their long distance acoustic mate attraction signals, enzyme activities, thoracic and abdominal percentages of carbohydrate, glycogen, and lipid, and morphology.

The Difference column represents the fold difference between the minimum and the maximum values. Abbreviations are as follows (units of measurement at the end of parentheses): TSC (daily average time spent signalling, mins), #Pulses (daily average number of pulses), Pulse Dur (average pulse duration, ms), IP Dur (average interpulse duration, ms), Chirp Dur (average chirp duration, ms), IChirp Dur (average interchirp duration, ms), PPChirp (average number of pulses per chirp), Carr Freq (average dominant frequency of pulses, Hz), Amp (average amplitude of pulses, dB), PK (pyruvate kinase), GP (glycogen phosphoylase), CS (citrate synthase), HOAD (β-hydroxyacyl-CoA dehydrogenase), TRE (trahalase), HK (hexokinase), Thor (thoracic), Ab (abdominal), Pro (pronotum), Carb (carbohydrates), and Gly (glycogen). All enzyme activities are in U/g of muscle tissue, where 1 U = 1 µmol substrate/min.