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Rh Scolytus destructor, Ol. pruni, Ratz rugulosus, Ratz multistriatus, Marsh. Hylastes ater, Payk. opacus, Er. palliatus, Gyll. Hylesinus crenatus, F.  oleiperda, F.  fraxini, Panz. (continued) Hylesinus vittatus, F. Chesham Myelophilus piniperda, L. Cissophagus hederas, Schmidt. Chesham Phlosophthorus rhododactylus, Marsh. Cryphalus fagi, F. Chesham Xylocleptes bispinus, Duft. Dryocaetes villosus, F. Trypodendron domesticum, L. Drayton Beauchamp Xyleborus saxeseni, Ratz. Chesham

From the large proportion of chalk and other calcareous admixtures in its soil this county appears to be somewhat rich in species of Lepi- doptera ; indeed it is, so far as the British Isles are concerned, the especial home of some most delicate and interesting species such as Lophopteryx cucullina and Ptilophora plumigera and is one of the only two known localities for Glupbisia crenata.

There are records of captures, in this order, in the county, for more than half a century past ; indeed at that date Black Park bore an enviable notoriety for the rare and interesting species there captured by the late Mr. Samuel Stevens and his friends. A little more recently the Rev. Joseph Greene, well known by his work upon ' Pupa digging,' spent some time at Halton, and the late Rev. Henry Harpur Crewe at Drayton Beauchamp and at Claydon ; and both thoroughly investigated and recorded the Macro-Lepidoptera of those districts. The Rev. Bernard Smith has spent the later half of a long life at Great Marlow, and has published the results of his many years of collecting and rearing larva? ; and Mr. W. Slade supplied the results of his collecting at and around Buckingham while resident there about 186972. More recently excellent work has been done at Chesham by Dr. Churchill, and at Chalfont St. Peter by the Rev. J. Seymour St. John, while the results of a visit to Leckhampstead and the borders of Whittlebury Forest by the Rev. C. F. Thornewill, and of one to Amersham and Wendover by Mr. H. J. Turner, and some notes from other parts of the county by Mr. A. J. Spiller and others in the Entomological magazines have been found very useful. Mr. Turner's records have the advantage of including Micro-Lepidoptera ; and in this respect a series of notices, more especially of Tortrices, by Mr. Richard South, the editor of the Entomologist have been of especial value.

It is a source of considerable regret to me that the records of Micro- Lepidoptera are so few, and I cannot but think that when these are fully worked up the county list will be very largely extended.

Pieris brassicae, Linn., and P. rapje, Linn. Cabbage butterflies). Everywhere, but most plentiful in gardens and the outskirts of towns ; destructive to vegetables Pieris napi, Linn. (Green-veined White butter- fly). Common in country districts among watercress and other cresses Anthocharis cardamines, Linn. (Orange Tip butterfly). Generally common