A MONOGRAPH

OF TUB

BRITISH

PHYTOPHAGOUS HYMENOPTERA.

(TENTHREDO, SIREX and CYNIPS, Linne.)

VOL. II.

PETER CAMERON.

LONDON:

PRINTED EOR THE RAY SOCIETY.

M DCCCLXXXV.

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!; EntomolGcisches Institut

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| Eidg.Tcchn. Hochschule in Zurich