The average lifespan (days) ± SE of male Mexican fruit flies,
Anastrepha ludens provided either a full diet (3:1 sugar to
yeast protein) or a sugar only diet, while female access was prevented (never),
only provided until age 20 days (truncated), or constant from eclosion until
death (always). Averages with different letters represent significant
differences (P < 0.05) among treatments, as determined
through a linear regression and subsequent t-tests.