Westwood, John Obadiah, 1833, Further notices of the British parasitic hymenopterous insects; together with the " Transactions of a fly with a long tail, " observed by Mr. E. W. Lewis; and additional observations.

Westwood, John Obadiah, 1833, Further notices of the British parasitic hymenopterous insects; together with the " Transactions of a fly with a long tail, " observed by Mr. E. W. Lewis; and additional observations., Magazine of Natural History and Journal of Zoology, Botany, Mineralogy, Geology and Meteorology 6, pp. 414-421