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idiobiont

MN - Giant Ichneumons (Megarhyssa atrata) 2009061504 - Megarhyssa atrata - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (I)
No Taxon idiobiont
Explanation of Names
Greek idios distinct, personal; + biont living (1).
Identification
Idiobiont parasitoids are those that prevent further development of the host after initial parasitization; typically they attack a host life stage that is immobile (e.g., an egg or pupa; though often a larva as well), and almost without exception idiobiont parasitoids live outside the host (altered from Wikipedia--Parasitoid). Typically, idiobionts attack hosts in concealed situations and have a broad range of hosts--are generalists (1). Contrast koinobiont.
Remarks
Editorial note: the statement that idiobionts "have a broad range of hosts--are generalists" (1) does not appear to square with the etymology--idios meaning distinct, personal. Perhaps this refers to the development outside the host body?
Print References
Gordh and Headrick, p. 466 (1)
Internet References
Wikipedia--Parasitoid
Chris Raper--Parasitic Wasps
Works Cited
1.A Dictionary of Entomology
George Gordh, David H. Headrick. 2003. CABI Publishing.