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      Influence of Various Foods on Fecundity and Longevity of Adults of Scambus buolianae (Htg.) (Hymenoptera: Ichneumonidae)

      The Canadian Entomologist

      Cambridge University Press (CUP)

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          Abstract

          The effects of fiood od the fecundity and longevity of the adults of hymenopterous parasites vary remarkably, not only between species that are host feeders and those that are not host feeders, but also within these groups. It is known, for example, that the females ofItoplectis conquisitor(Say) develop only few eggs without feeding on body fluids of their host. In the present investigations it is shown that the females ofScambus buolianae(Htg.) are not able to deposit any eggs without first feeding on the tissues of their host. Such information is important for the successful establishment of newly-imported parasites.

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          Most cited references 4

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          Attractiveness of Different Foods and Flowers to the Adults of some Hymenopterous Parasites

           K. Leius (1960)
          Many attempts to establish introduced parasites in Canada failed though the climatic conditions at their release points were apparently similar to those of their native habitats (Thorpe, 1930; Bairdet al., 1947). It is known that many adults of hymenopterous parasites feed on flowers, aphid honeydew, host body fluids, and other substances (Jackson, 19 37; Thorpe and Caudle: 1938; Schneider, 1939; Györfi, 1945, 1951; Zoebelein, 1956). This brings up the possibility that nourishment from one or more of the above sources is necessary for surviial and reproduction, and that some of the failures may have been because of the absence or scarcity of suitable adult food (Clausen. 1956). At present data on the food preferences of adult hymenopterous parasites are scarce. Except for a few field and laboratory observations, there are no experiments that demonstrate distinct preferences for one food over another. The results of the experiments described in the present paper demonstrate that adults of the species studied have preferences for some flowers and food substances tested.
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            Influence of Food on Fecundity and Longevity of Adults of Itoplectis conquisitor (Say) (Hymenoptera: Ichneumonidae)

             K. Leius (1961)
            The females of many species of chalcids, braconids, pteromalids, and ichneumonids feed on the body fluids or hemolymph of their host. The fact that the adult males do not partake of this food indicates that such feeding may be associated with egg production. Carbohydrate foods, in addition to the body fluids of the host, are essential to egg production in certain species. Feeding on the host by females of certain hymenopterous parasites increases their value as control agents. This feeding sometimes may be more important than parasitism as a cause of host mortality.Itoplectis conquisitor(Say), a host feeding parasite, is considered in this paper.
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              Observations on the Parasites of the Pine-shoot Moth Rhyacionia buoliana Schiff

               W. H. THORPE (1930)
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                Author and article information

                Journal
                applab
                The Canadian Entomologist
                Can Entomol
                Cambridge University Press (CUP)
                0008-347X
                1918-3240
                December 1961
                May 2012
                : 93
                : 12
                : 1079-1084
                Article
                10.4039/Ent931079-12
                © 1961

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