Research article

Insectes Sociaux

, Volume 54, Issue 1, pp 53-55

The first record of infection and sterilization by the nematode Sphaerularia in hornets (Hymenoptera, Vespidae, Vespa)

  • K. SayamaAffiliated withHokkaido Research Center, Forestry and Forest Products Research Institute Email author 
  • , H. KosakaAffiliated withHokkaido Research Center, Forestry and Forest Products Research Institute
  • , S. MakinoAffiliated withDepartment of Forest Entomology, Forestry and Forest Products Research Institute

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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