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Insects 2017, 8(3), 89; doi:10.3390/insects8030089

A Preliminary Investigation of the Interactions between the Brood Parasite Chalcoela iphitalis and Its Polistine Wasp Hosts

Entomology Department, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
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Author to whom correspondence should be addressed.
Academic Editors: Kenneth Wilson, Fleur Ponton and Sheena Cotter
Received: 10 July 2017 / Revised: 9 August 2017 / Accepted: 22 August 2017 / Published: 24 August 2017
(This article belongs to the Special Issue Parasite-Insect Interactions)
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Abstract

The life history of Chalcoela iphitalis—a common brood parasite of social wasps—has been described in previous literature, but critical information regarding oviposition behavior and possible differential host parasitism remain cryptic. Here we report on infestation levels of this moth in field populations of paper wasps in Polistes and Mischocyttarus, as well as the oviposition behavior of the moths under a laboratory setting. We found evidence for differential parasitism between paper wasp genera in the field, with almost 50% nest infestation in P. bellicosus and no occurrences of moth infestation in M. mexicanus. Laboratory results revealed that oviposition occurs only at night and is stimulated by contact with the wasp nest or adult wasps. In this setting, eggs were laid largely on the substrate above or adjacent to the host nest, but not on the nest itself. View Full-Text
Keywords: Polistes; Mischocyttarus; social; ectoparasite Polistes; Mischocyttarus; social; ectoparasite
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Nacko, S.; Henderson, G. A Preliminary Investigation of the Interactions between the Brood Parasite Chalcoela iphitalis and Its Polistine Wasp Hosts. Insects 2017, 8, 89.

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