bellus) is a functional heterotherm
with fluctuating body temperature values reported at 30-36 [degrees]C, depending on ambient conditions (McBee & Baker, 1982, and references therein).
Hence, large body mass is critical for effective insect endothermy, especially prolonged flight on cold days, and that is why insect heterotherms
tend to be large (Heinrich 1981, 1993).
Allometric relationships between size and fecundity have been established for plants and certain animal groups such as insects (Marshall 1990), fish (Wootton 1979), and heterotherms
in general (Roff 1992); larger organisms tend to have greater fecundity within these groups.