a1398 J. Trevisa tr. Bartholomaeus Anglicus (BL Add.) f. 246 Aysshen shullen be medled wiþ seed þerof to destruye maleschagges and oþre wormes.
a1398 J. Trevisa tr. Bartholomaeus Anglicus (BL Add.) f. 275 A malschragge þat gnaweþ caule leues.
1582 S. Batman xviii. xlvii. f. 365v/1 This Malshragge abideth vppon twigges and leaues, and wasteth them all with gnawing and biting, and is slow in creeping.
1777–8 R. Wight (MS Bodl. Eng. lang. d.66) 265 [Gloucestershire] A Maltshag idem [sc. a Palmer worm, that devours Cabbages &c.].
1881 H. Smith & C. R. Smith Mallishag, a caterpillar.
1883 W. H. Cope Maleshag, a caterpillar.
1886 W. H. Long 38 I ben out in gearden to cut a cabbage or two vor dinner, but they be very near all spwiled, and vull o' mallishags.
1889 ‘M. Gray’ I. 114 Buoys is made a purpose to tarment mankind, zame as malleyshags and vlays.
1902 in (1903) IV. 21/1 [Yorks.] The malshrag is a worm with many feet and breeds in cole leaves.
1911 M. C. G. Byron 54 I zays to myself, Let be: She'll furl en away like a mallishag—her can zee droo the likes o' he!
2011 @Isleofwightone 27 Dec. in twitter.com (O.E.D. Archive) Mallyshags ate my nasturtiums, but they survived!
2013 @gypcol 30 Aug. in twitter.com (O.E.D. Archive) Is nothing safe from Mallyshags? Inspection by magnifying glass resulted in 2 chrysalis and 1 caterpillar on my windowsill basil.