INSECTS Petasia cassinea, Fab. Norwich, Merton^ Thetford, Cawston, Sparham, Hockering, Lynn and Foxley IVood Clostera curtula, Linn. Merton, Thetford, Hingham ; rare — anachoreta, Fab. Barton. A colony in- troduced here from the south coast, is said to be thriving — reclusa, Sch. Apparently generally dis- tributed on boggy heaths and in fens among the dwarf sallows Diloba csruleocephala, Linn. Generally dis- tributed, and in some seasons plentiful. At Denton Rectory I saw larva feeding freely upon Pyrus japonica, its ordinary food being hawthorn or blackthorn Gonophora derasa, Linn. Widely distributed in woods, but not common Thyatira batis, Linn. Also rather uncom- monly in similar situations Cymatophora duplaris, Linn. Norwich, St. Faiths, Merton, Aldehy, Foxley, Foul- sham, Neatishead, Horning, Lynn ; not plentiful — or, Sch. Foxley, Foulsham, Denton, Neatis- head — ocularis, Linn. Norwich, Lynn, Cawston, Foulsham, Yarmouth, Denton, Gillingham, Thetford ; not rare among poplar Asphalia diluta, Sch. Merton, Neatishead, Foulsham ; not generally common in the county, but plentiful in Foxley IVood — flavicornis, Linn. Merton, Drayton, Strat- ton Strawless ; common near Lynn and at IVootton — ridens, Fab. Norwich, Stratton Strawless, Felthorpe, Cawston, Drayton, Denton ; not very common Diphthera orion, Esp. Taken near Aldehy by Dr. Crowfoot ; not observed else- where in the county Actonycta leporina, Linn. Norwich, Strat- ton Strawless, Lynn, Runham, Horning, Foulsham, Cawston, Foxley, Merton, Thetford ; not very common — aceris, Linn. Generally distributed — megacephala, Sch. Norwich, Yarmouth, Thetford, Merton, Aldehy, Foxley, Cawston, Horning ; sometimes common — alni, Linn. Merton, Foxley, Cawston, Foulsham, Sail, Aylsham, Stratton Straw- less ; always rare, but recorded in the county by Haworth and Stephens — strigosa. Fab. Recorded at Foulsham by the Rev. T. H. Marsh. Stephens writes : ' Mr. Haworth possesses a single specimen of this insect, which I believe was taken in Norfolk.^ The headquarters of the species are in Cam- bridgeshire Acronycta tridens, Sch. Norwich, Dunston, Thetford, Merton, Aldehy, Lynn, Cawston, Horning, Barton Turf; not very rare — menyanthedis, Esp. Two larvje were found by Dr. F. D. Wheeler in fens, one at HickUng Broad, the other at Barton Turf ; of these one was reared, and is unquestionably the present species. Usually quite a northern insect — rumicis, Linn. Merton, Thetford, Aldehy, Cawston, Horning ; not common in this county — ligustri, Sch. Merton, Thetford, Aldehy, Foxley, Cawston, Foulsham, Lynn ; not common Arsilonche venosa, Bkh. (albovenosa, St. C). Ranworth, Horning, Reedham ; found only in the fens Agrotis valligera, Sch. (vestigialis, St. C). Common on all the sandhills of the coast, and also on the loose sands of the ancient coast known as the ' Breck- sand,' near Thetford, Brandon and Merton — suffusa, Sch. Generally distributed — corticea, Sch. Norwich, Merton, Thet- ford, Cawston, Lynn, Hingham, Horning ; not scarce ; sometimes in very black forms on the coast — puta, Hb. Norwich, Aldehy, Thetford, Lynn, Cawston, Hunstanton ; not very common — ripje, Hb. Caistor, near Yarmouth, Hun- stanton, Heacham ; probably wherever Salsola kali grows on the sea-sands — cursoria, Bkh. Abundant on the sand- hills of the coast, at Yarmouth, Caistor, and Hunstanton. Not found inland — nigricans, Linn. Generally distributed, and in great variety — tritici, Jyinn. Very abundant upon coast sand-hills, and richly and variably coloured ; also, in similar rich forms, in plenty throughout the ' Breck-sand ' district ; and in more dull and ordinary forms to be found occasionally on all heaths — aquilina, Sch. Norwich, Brandon, Thet- ford, Horning, Cawston, St. Faiths ; some- times common — agathina, Dup. Lynn ; on heaths, but rare — porphyrea, Sch. Common on heaths — praecox, Linn. Yarmouth, Caistor, Hun- stanton ; on the coast sand-hills ; also rarely near Thetford on the ' Breck- sand ' — saucia, Hb. Norwich, Yarmouth, Lynn, Cawston, Dilham, Sparham, Thetford, Aldehy ; uncertain, usually scarce 143
