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  • 1
    Electronic Resource
    Electronic Resource
    Overwintering biology ofMyiopharus aberrans andMyiopharus doryphorae (Dipt.: Tachinidae) larval parasitoids of the colorado potato beetle (Col.: Chrysomelidae) (1992)
    Springer
    BioControl 37 (1992), S. 311-315 
    Details
    ISSN: 1573-8248
    Keywords: Tachinid ; parasitoid ; overwintering ; Myiopharus aberrans ; Myiopharus doryphorae ; Leptinotarsa decemlineata ; Tachinaire ; parasitoïde ; hivernation ; Myiopharus aberrans ; Myiopharus doryphorae ; Leptinotarsa decemlineata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé On a étudié la biologie de l'hivernation deMyiopharus aberrans (Townsend) etMyiopharus doryphorae (Riley), Tachinaires parasitoïdes du doryphore de la pomme de terre,Leptinotarsa decemlineata. Soixante-sept doryphores adultes furent déterrés avant l'émergence, au printemps 1990, d'une plantation de pomme de terre de l'année précédente. Cinq adultes deM. aberrans et deux adultesM. doryphorae furent prélevés de sept de ces doryphores. Ceci constitue la première information concernant l'hivernation deM. aberrans etM. doryphorae.
    Notes: Abstract The overwintering biology ofMyiopharus aberrans (Townsend) andMyiopharus doryphorae (Riley), tachinid parasitoids of the Colorado potato beetle, was investigated. Sixty seven overwintered Colorado potato beetle adults were dug from the soil before beetle emergence in the spring of 1990 from a field that had been planted to potatoes the previous year. Five adultM. aberrans and two adultM. doryphorae flies were reared from seven beetles. This is the first record of howM. aberrans andM. doryphorae flies overwinter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372432
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Two tachinid species discriminate between parasitized and non-parasitized hosts (1995)
    Springer
    Entomologia experimentalis et applicata 74 (1995), S. 37-45 
    Details
    ISSN: 1570-7458
    Keywords: larvipositional behavior ; host discrimination ; Leptinotarsa decemlineata ; Myiopharus doryphorae ; Myiopharus aberrans ; Diptera ; Tachinidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The abilities ofMyiopharus doryphorae (Riley) andM. aberrans (Townsend) (Diptera: Tachinidae) to discriminate between parasitized and non-parasitized Colorado potato beetle (host)Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) larvae, were investigated under laboratory and field conditions. Laboratory experiments showed that bothMyiopharus species have a significantly greater frequency for larvipositing in non-parasitized hosts over parasitized ones. Direct field observations of larvipositional behavior of bothMyiopharus species over three growing seasons showed effective restraint from larviposition into parasitized hosts, while larviposition into nonparasitized ones occurred readily. Avoidance of previously-parasitized hosts occurred after the larvipositing flies briefly landed on host larvae without attempting to insert the larvipositor. The low levels of superparasitism which occurred in the caged experiments and in the field appeared to be due to a breakdown of the larvipositing parasitoids' restraint when they met only parasitized hosts or when many parasitoids competed for reduced numbers of hosts late in the season.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02383165
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    Paper (German National Licenses)
    Fulltext
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