L YC^NID.E. 47 



and is then difScult to see. It has even been known to 

 appear unexpectedly in the outskirts of a town, as when 

 a specimen was found and captured, early one morning', 

 sitting on the outside of a window of my house at King's 

 Lynn, none having been seen, so far as I know, in that 

 district either before or since, nor were any at that time 

 reared there. 



It is a local species, usually abundant where it occurs ; very 

 fond of such Wych elms as grow at the edges of woods ; and 

 ■ — which is very singular — by no means so plentiful in the 

 southern coast counties as in some farther north. It is 

 recorded as very rare in Hants and Dorset, and scarce 

 (though formerly more common) in Sussex ; found in very 

 few localities in Kent, and apparently unknown in Devon. 

 In Surrey it was formerly common at Ripley and Chertsey, 

 and is doubtless still to be found ; in Essex, common near 

 Maldon, scarce elsewhere ; plentiful in various parts of 

 Suffolk ; very scarce in Norfolk ; found more or less plenti- 

 fully in Herts, Hants, Cambs, and Northamptonshire ; very 

 rare in Nottinghamshire ; but again to be found in 

 North Lincolnshire ; and common in several localities near 

 Doncaster, Barnsley, and elsewhere in Yorkshire. This 

 appears to be its northern limit, and in this respect it con- 

 trasts curiously with Thcda hdidoe, since it extends farther 

 north in the east than that species ; yet in the west is 

 recorded no farther than Cheshire and Shropshire, where 

 I found it, thirty-five years ago, upon Benthall Edge. In 

 Herefordshire it is recorded but rarely ; more commonly in 

 Worcestershire ; also in Derbyshire, and Needwood Forest, 

 Staffordshire ; common round Burton-on-Trent and elsewhere 

 in Leicestershire ; and in Oxfordshire, Bucks, and Berks. But 

 its metropolis seems to be in Wiltshire, where Mr. E. C. L. 

 Perkins has found it, around Marlborough and Savernake, 

 in thousands, as well as in Gloucestershire. Here also 

 Mr. H. Goss has found it in some seasons in abundance in 

 the Cotswold district and farther west, in Monmouthshire : 



