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 INSECTS right discovered, at Lynn, that the greater spotted woodpecker extracts the larvEe of this species from their burrows in the twigs of trees, and thereby doubtless prevents its Isecoming com- mon Cossus ligniperda. Fab. Generally distri- buted, and very destructive to willow, poplar, ash, and oak trees, its larva burrowing under the bark and through the solid wood, and causing decay Hepialus sylvinus, Linn. Locally common on heaths — hectus, Linn. Local, but common in woods Limacodes testudo, Sch. CawstoUy Drayton, Felthorpe, Honford ; scarce Hylophila prasinana, Linn. In woods gene- rally ; not scarce — quercana, Sch. Merton, Foxley Wood, Honford ; rather common at Croxton and Lynn Earias chlorana, Linn. Norwich, Barton Turf, Horning, Ranworth and other fens ; not scarce at Lynn Nola cucullatella, Linn. Generally distri- buted among hawthorn and blackthorn, and in gardens about fruit trees — strigula, Sch. Recorded by Paget at Tarmouth — confusalis, Hb. Not scarce around Nor- wich and at Foxley, Cawston, Sparham and Hockering ; also found at Lynn and Denton Nudaria senex, Hb. Very common in the fens, and to be found more sparingly in marshy spots generally — mundana, Linn. Merton, Aldehy, Yar- mouth, Cawston and Horning ; not common Calligenia miniata, Forst. Widely distri- buted in woods and on wooded heaths Setina irrorella, Linn. Mr. F. Norgate re- ports the capture of this local species in Foxley Wood — mesomella, Linn. Widely distributed on boggy heaths, and in woods and even fens Lithosia muscerda, Hb. Common at Ran- worth, Horning, Irstead, Dilham, Brun- dall and elsewhere in the fens. Plenti- ful in some seasons ; but almost confined to the fens of Norfolk, so far as the British Isles are concerned — aureola, Hb. Norwich, Merton, Denton, Sparham and Lynn, occasionally ; much more frequent in Hockering and Foxley Woods — helveola, Ochs. Cawston, Cromer, Strat- ton Strawless; scarce Lithosia complana, Bdv. Merton, Thetford, Tarmouth, Cawston, Lynn, Horning, St- Faiths near Norwich. A variety tending towards that known as L. molybdeola, Gn., is found on heaths near Brandon and Merton — griseola, Hb. Generally common, and abundant in the fens, where also its beautiful ochreous variety, L. stramin- eola, is not scarce — rubricollis, Linn. Generally distributed in woods, but not common CEnistis quadra, Linn. Norwich, Horsford, Merton, Barton Bendish, Drayton, Horning ; very uncommon Euchelia jacobseae, Linn. Generally distri- buted ; often abundant Callimorpha dominula, Linn. Two speci- mens have been taken at Burgh near Aylsham, by Mr. Godfrey Burr Euthemonia russula, Linn. Of general dis- tribution on heaths Nemeophila plantaginis, Linn. Ketteringham ; very local Arctia villica, Linn. Norwich, Thetford, Merton, Brandon and Broome Phragmatobia fuliginosa, Linn. Norwich, Merton, Brandon, Billingford, Sparham, Cawston, Horning ; scarce Spilosoma mendica, Linn. Norwich, Lynn, Cawston, Sparham, Merton, Horstead ; not common — urticae, Esp. Norwich, Surlingham, Horn- ing, Lynn, Barton Turf, Gillingham, Thetford ; mainly confined to fens Porthesia chrysorrhcea, Linn. This species has been found at Norwich, Yarmouth, Aldehy and Sparham ; but I know of no recent captures — auriflua. Fab. Everywhere abundant about hedges Liparis salicis, Linn. Norwich, Yarmouth, Thetford, Gillingham, Horning, Hick- ling, Clenchwarton, Lyng, Barton ; for- merly plentiful, but now apparently extinct in some of these localities, and generally greatly reduced in numbers Hypogymna dispar, Linn. At the beginning of the present century, or the end of the last, very plentiful at Horning, where Curtis found it flourishing in such abun- dance that ' eggs, caterpillars, chrysa- lides and moths ' could all be collected by him upon the same day. It was also found at Cawston, and there con- tinued until the year 1861, since which period it has not, I think, been observed at large in the county, and scarcely in any other part of the British Isles Psilura monacha, Linn. Near Norwich, also 141