The dominant and ancestral mode of sex determination in the Hymenoptera is
arrhenotokous parthenogenesis, in which diploid females develop from fertilized eggs and …

Intraspecific genetic variation in arthropods is often studied in the context of evolution and
ecology. Such knowledge, however, can also be very usefully applied to biological pest …

Recent decades have witnessed an explosion of theoretical and empirical studies of sex
allocation, transforming how we understand the allocation of resources to male and female …

Sex pheromones are pivotal for insect reproduction. However, the mechanism of sex
pheromone communication remains enigmatic in hymenopteran parasitoids. Here we have …

Despite the diverse array of mating systems and life histories which characterise the
parasitic Hymenoptera, sexual selection and sexual conflict in this taxon have been …

We analyzed the relationship among host size, superparasitism and sex-ratio in mass
reared Diachasmimorpha longicaudata (Hymenoptera: Braconidae). Individual host pupae …

The insect order Hymenoptera is speciose, diverse and common. Many wasps, bees and
ants are well known for their ability, and propensity, to engage in agonistic interactions via …

In this chapter, we consider practical aspects of the foraging behaviour of insect natural
enemies in its widest sense (so wide that we even include a few examples concerning non …

Many parasitoids alter their reproductive behaviour in response to the quality of encountered
hosts. They make adaptive decisions concerning whether to parasitise a potential host, the …

Highlights•We explored mechanisms inducing higher production of male parasitoids at low
and high temperature.•We compared intended vs secondary sex ratios to discriminate …