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Journal article
Parasitism and migration in southern Palaearctic populations of the painted lady butterfly, Vanessa cardui (Lepidoptera: Nymphalidae)
The painted lady butterfly (Vanessa cardui) (Lepidoptera: Nymphalidae: Nymphalinae) is well known for its seasonal long-distance migrations and for its dramatic population fluctuations between years. Although parasitism has occasionally been noted as an important mortality factor for this butterfly, no comprehensive study has quantified and compared its parasitoid complexes in... -
Book chapter
Hymenopterous parasitoids of diptera
Shaw, Mark R ; Askew, R R
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Journal article
Brachymeria tibialis (Walker, 1834) (Hymenoptera: Chalcididae), a parasitoid of Zygaena Fabricius, 1777, and other Lepidoptera
The primary parasitoids of Zygaena spp. exhibit extreme specialisation to Zygaenidae. However, B. tibialis is a parasitoid of Zygaena, but has a broad lepidopteran host range. The morphology of B. tibialis specimens reared from Zygaena was compared with that of specimens from other host Lepidoptera (Lymantria dispar, Ocnerogyia amanda, Euproctis...Askew, R R ; Shaw, Mark R
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Journal article
Reproductive variability in Pediobius alcaeus (Walker) (Hymenoptera: Eulophidae), a parasitoid of Phyllonorycter (Lepidoptera: Gracillariidae)
Separate, but sympatric, sexual and asexual populations of Pediobius alcaceus ( Walker) (Hymenoptera: Eulophidae), a parasitoid of leaf-mining Phyllonoryter species (Lepidoptera: Gracillariidae), are shown to exist and to be associated with hosts on a different tree species in BritainShaw, Mark R ; Askew, R R
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