Zeitschrift für Parasitenkunde

, Volume 63, Issue 3, pp 277–286 | Cite as

Cerebral larvae in the second intermediate host ofDicrocoelium dendriticum (Rudolphi, 1819) andDicrocoelium hospes looss, 1907 (Trematodes, Dicrocoeliidae)

  • Thomas Romig
  • Richard Lucius
  • Werner Frank
Original Investigations

Abstract

Cerebral larvae ofDicrocoelium dendriticum andD. hospes and the brains of infected ants were studied. Morphologic differences of the freed larvae could not be found, but there were evident differences in number and localization of the cerebral stages. Ants infected withD. dendriticum usually showed one “Hirnwurm” while in the majority of the ants infected withD. hospes two larvae were found.

The typical localization of the “Hirnwurm” ofD. dendriticum was in the ventral part of the subesophageal ganglion; almost every larva ofD. hospes was found in the dorsal part of an antennal lobe. The cyst walls of the larvae were visible only in some specimens. Their thickness seemed to depend on the localization of the larva. Differences in number and localization of the larvae, and hypothetical mechanisms how they could influence the behavior of their hosts are discussed.

Key words

Dicrocoelium dendriticum Dicrocoelium hospes Cerebral larvae Second intermediate host Behavioral changes 

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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • Thomas Romig
    • 1
  • Richard Lucius
    • 1
  • Werner Frank
    • 1
  1. 1.Abt. ParasitologieUniversität HohenheimStuttgart 70Federal Republic of Germany

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