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The first record of infection and sterilization by the nematode Sphaerularia in hornets (Hymenoptera, Vespidae, Vespa)
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Research article
The first record of infection and sterilization by the nematode Sphaerularia in hornets (Hymenoptera, Vespidae, Vespa)
K. Sayama1  , H. Kosaka1 and S. Makino2
| (1) |
Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo, Hokkaido 062-8516, Japan |
| (2) |
Department of Forest Entomology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan |
Published online: 15 January 2007
Abstract. Parasitic nematodes of the genus Sphaerularia are known to infect and sterilize the overwintering gynes (potential queens) of bumblebees.We found that 70% of the overwintered
gynes of the hornet Vespa simillima collected using bait traps were infected and sterilized by Sphaerularia sp. This is the first solid record of parasitism by Sphaerularia in hornets ( Vespa spp.).
Keywords. Sphaerularia - nematodes - parasites - hornets - Vespa simillima
Received 22 June 2006; revised 24 October 2006; accepted 3 November 2006.
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