Macro-Lepidoptera of District around Maldon, Essex. 31 have never had a chance of working very thoroughly; but, judging from my limited experience, I should say that it is much richer in the Micros than in the larger insects of which I am specially treating in this paper. My collecting has been done chiefly inland, Hazeleigh, 21/2 miles S.W. of Maldon, being the head-quarters. The other parishes to which I have given special attention are, besides Maldon itself—Danbury, 5 miles W.; Purleigh, 4 miles S.; Mundon, 3 miles S.S.E.; Woodham Mortimer, 21/2 miles W.; Woodham Walter, 3 miles W.; and Woodham Ferrers, 6 miles S.W. The prevailing flora is that usually found on a clayey soil: Danbury, however, stands on a light gravelly soil which produces many peculiar plants, and several that are of con- siderable rarity in the county. A short sketch of the botanical characteristics of the district, with especial reference to such plants as Lepidoptera are partial to, will perhaps not be out of place. The elm is undoubtedly the tree which flourishes most, the soil being especially suited to its growth; it may be seen along the hedgerows and roads throughout this district, and its variety or congener, the wych-elm (Ulmus montana), is by no means uncommon, and is a peculiarly graceful tree. Its English name is not owing to any sinister quality associated with the tree, but, according to its derivation, signifies pendulous or drooping; and is etymologically con- nected with wicker-work, both being attributable to the root in Anglo-Saxon, wic-an, to bend. The oak is also fairly abundant, much more so than in many parts of the eastern counties. Nearly all the woods in this part consist of oaks, but out of woods one notices specimens only here and there. Maple is very abundant in hedges, but does not often attain a considerable size. Pines are almost entirely absent, especially close to Maldon—a fact which makes the record of a true pine-feeding species (Thera variata) worthy of special notice. The alder is a rare tree, being found occasionally on the banks of the Navigation, between Maldon and Chelmsford, and also near the railway- line at Langford; nor does its close ally, the birch, flourish to any great extent. It is to be found growing singly in