Ellis, H.A. 1992, An egg parasitoid of the genus Trichogramma (Hymenoptera: Trichogrammatidae) on the small skipper butterfly Thymelicus sylvestris Poda in County Durham. Vasculum
77(1):2-3
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Ellis, H.A. 1993, The small skipper Thymelicus sylvestris Poda and the egg parasitoid Trichogramma sp. update 1992. Vasculum
78(1):1-3
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Haliday, A.H. 1833, An essay on the classification of the parasitic Hymenoptera, etc. (Continued) Entomological Magazine
1(4):341
(Parasitoid identification correct)
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Thomas, J.A. 1975, Some observations on the early stages of the purple hairstreak butterfly, Quercusia quercus (Linnaeus) (Lep., Lycaenidae). Entomologist's Gazette
26(3):224-226
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Thompson, W.R. 1958, A catalogue of the parasites and predators of insect pests. Section 2. Host parasite catalogue, Part 5.
pp.671-673
Commonwealth Agricultural Bureaux, Commonwealth Institute of Biological Control, Ottawa, Ontario, Canada
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Warren, M.S. 1984, The biology and status of the wood white butterfly, Leptidea sinapis (L.) (Lepidoptera: Pieridae) in the British Isles. Entomologist's Gazette
35(4):207-223
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Westwood, J.O. 1833, Descriptions of several new British forms amongst the parasitic hymenopterous insects. Philosophical Magazine (3)
2:444
(Parasitoid identification correct)
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