Parasitylenchus sp. (Tylenchomorpha: Allantonematidae) parasitizing field populations of Harmonia axyridis (Coleoptera: Coccinellidae)

Autor:	Susanne HARDING, George O. POINAR, Desislava V. DIMITROVA, Tove STEENBERG
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	coccinellidae harmonia axyridis parasitic nematodes allantonematidae parasitylenchus sp. field parasitism invasive species Zoology QL1-991
Zdroj:	European Journal of Entomology, Vol 108, Iss 3, Pp 487-488 (2011)
Druh dokumentu:	article
ISSN:	1210-5759 1802-8829
DOI:	10.14411/eje.2011.062
Popis:	Adults of the invasive harlequin ladybird, Harmonia axyridis (Coleoptera: Coccinellidae), were found to be parasitized by nematodes (Tylenchomorpha: Allantonematidae) in Denmark. The nematodes were identified as Parasitylenchus sp. Major morphological characters of the nematodes did not differ significantly from Parasitylenchus coccinellinae Iperti & van Waerebeke 1968, but minor deviations in egg dimension and tail length were measured. Parasitism was only recorded in early autumn, with prevalence ranging from 2 to 33%. Adult and juvenile nematodes occurred together in the body cavity of both female and male H. axyridis.
Databáze:	Directory of Open Access Journals
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