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Biology and immature stages of Panteles schnetzeanus (Hymenoptera: Ichneumonidae), a parasitoid of Lampronia fuscatella (Lepidoptera: Incurvariidae)

2005; Taylor & Francis; Volume: 39; Issue: 5 Linguagem: Inglês

10.1080/00222930410001708669

1464-5262

Donаld L. J. Quicke,

Insect-Plant Interactions and Control

Abstract Panteles schnetzeanus (Roman), a parasitoid of the gall‐forming incurvariid moth Lampronia fuscatella (Tengström) and currently placed in the Stilbopinae, is shown to be a solitary koinobiont larval endoparasitoid. The large dark‐pigmented eggs possess a hook‐like tail which is embedded in host tissue, typically at the posterior or anterior end of the host. In cases of superparasitism, which represented 70% of cases, only a single egg hatches. The first instar, prepupa and final larval instar head capsules are described and illustrated. Many differences between the biology of Panteles and of Stilbops are discussed. Circumstantial evidence that suggests that Panteles may have an alternative host is also presented based on the emergence dates for it and the Lampronia together with the size, number and placement of the Panteles eggs. DNA sequence data additionally provide the first record of a eupelmid as attacking a gall‐forming incurvariid/parasitoid system, though it is not clear whether this was an hyperparasitoid on the Panteles or a primary on the incurvariid. Keywords: Hymenopteralarval head capsulePanteles schnetzeanussuperparasitismStilbopsStilbopinaegalls Acknowledgements I would like to thank Mark Shaw (Edinburgh), Charles Godfray (Silwood), Keith Bland (Edinburgh), John Noyes (London) and Mike Fitton (London) for interesting discussions and advice and for providing additional information. I am also grateful to Andy Polaszek (Silwood) for use of Automontage® equipment, Jo Martin (Silwood) for sequencing the Panteles larva and Shahab Manzari (Silwood) for assistance with photography and montaging the plates.