Paedogenesis is the reproduction by larvae or juveniles. In insects this form of reproduction is known from one beetle, several species of gall midges and possibly Erisalis hoverfiies. This study aims to show paedogenesis forE. arbuslorum under controlled conditions. The first two experiments were unsuccessful. In the third experiment, a total of 1266 larvae were reared and five occasions of paedogenesis were recorded among 542 successful pupations. In all cases of paedogenesis, one larva was put in the container and two larvae or pupae were collected later. The life history consequences of this way of reproduction are discussed.
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