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Hymenoptera (sawflies, wasps, ants, and bees) are one of four mega-diverse insect orders, comprising more than 153,000 described… Expand Abstract Phylogenies are usually dated by calibrating interior nodes against the fossil record. This relies on indirect methods… Expand The dominant and ancestral mode of sex determination in the Hymenoptera is arrhenotokous parthenogenesis, in which diploid… Expand Social insect are profoundly influenced by primer pheromones (PPhs), which are efficient means for maintaining social harmony in… Expand Parasitoid wasps have evolved a wide spectrum of developmental interactions with hosts. In this review we synthesize and… Expand The purpose of diagnostic procedure is to classify a sting reaction by history, identify the underlying pathogenetic mechanism… Expand Oak gall wasps (Hymenoptera: Cynipidae, Cynipini) are characterized by possession of complex cyclically parthenogenetic life… Expand This title presents illustrated keys to the 19 families and 706 described genera of Chalcidoidea known to occur in the Nearctic… Expand
An illustrated key to the 43 subfamilies of the family Braconidae (Hymenoptera: Ichneumonoidea) is given.
Abstract I present an optimization model that defines some conditions under which group-living and cooperating individuals… Expand