New Ichneumonidae (Hymenoptera) parasitoids of forest insect pests in Bulgaria

  • G. Georgiev
  • J. Kolarov


During the period 1989–1998 investigations were carried out on the parasitoids of some forest insect pests in Bulgaria. Twenty-one ichneumonid species are reported for the first time in Bulgaria as parasitoids of different coleopteran, lepidopteran, and hymenopteran hosts. From these, 6 parasitoids are new records for the parasitoid complexes of the hosts:Exochus decoratus Holmgr. onEudemis profundana (Den. & Schiff.) andGelechia turpella (Den. & Schiff.);Lissonota culiciformis Grav.—onParanthrene tabaniformis (Rott.);Lissonota unicincta Holmgr.—onG. turpella; Xorides gracilicornis (Grav.)—onXylotrechus sp.; andEriborus terebrator Aubert—onClostera anastomosis (L.). Most parasitoids developed as primary parasitoids in the hosts.Itoplectis alternans (Grav.) is a primary parasitoid ofNycteola asiatica (Krul.) and a hyperparasitoid ofE. terebrator: Acropimpla pictipes (Grav.) is secondary parasitoid onAnacampsis populella (Cl.). With the exception of two species ofOlesicampes genus, which destroyed over 50% ofStauronematus compressicornis (F.) andPristophora conjugata (Dahlm.) larvae, andE. terebrator which killed 15.4% ofC. anastomosis population, the rest of the parasitoids occurred in low densities, and did not play an important role in reducing the number of their hosts.


Schiff English Summary Forest Research Institute Forest Insect Primary Parasitoid 
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Copyright information

© Blackwell Wissenschafts-Verlag 1999

Authors and Affiliations

  • G. Georgiev
    • 1
  • J. Kolarov
    • 2
  1. 1.Forest Research InstituteSofiaBulgaria
  2. 2.Biological FacultyUniversity of Sofia “St. Kl. Ohridski”SofiaBulgaria

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