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 INSECTS HYDRIOMENIDJE (continued) Hydriomena alchemillata, L. Sandridge (Griffith) ; Haileybury (Bowyer) ; Hert- ford (Stephens) ; Watford (Heaton) Scarce at ' light ' affinitata, Stph. Haileybury (Bowyer) ; Hertford (Stephens) ; Watford (Spen- cer, Heaton, Wigg) Scarce and local decolorata, Hb. St. Albans and Bricket Wood (A. E. G.) ; Sandridge (Grif- fith) ; Hitchin (Durrant) ; Haileybury (Bowyer), ' woods beyond Pavilion field,' School List ; Hertford (Stephens) ; East Barnet (Gillum) ; Watford (Wigg) ; Oxhey Wood (H. Rowland-Brown) ; Tring (Goodson) ; Halfhide Lane, Cheshunt Marsh (Boyd) albulata, Schiff. Symands Hyde(A.E.G.); Sandridge (Griffith) ; Haileybury (Bowyer), ' Mississippi fields,' School List ; Oxhey Wood (H. Rowland- Brown); Wigginton Common (Foulkes); Cheshunt (Boyd) Locally common procellata, F. Sandridge (Griffith) ; Haileybury (Bowyer) ; Hertford (Stephens) ; Watford (Wigg) Not common ; larvae taken on clematis bilineata, L. A very common species; abundant in all the districts Pelurga comitata, L. Hertford (Stephens) ; East Barnet (Gillum) ; Bushey (Cutts) ; Watford (Wigg) ; Bushey Heath (Barraud) ; Stanford (Taylor) Although only recorded in a few localities, this insect appears to be abundant where it does occur. Mr. Barraud says that it is common, and in 1900 especially so at 'light.' He notes that it varies a good deal in colour of markings Operophtera brumata, L. Very common everywhere boreata, Hb. Watford (Spencer, Wigg) ; Bushey Heath (Barraud) Scarce and local Euchoeca luteata, SchifF. St. Albans (A. E. G.); Sandridge (Griffith); Hitchin (Durrant) ; Haileybury (Bowyer) ; Hertford (Stephens) ; Watford (Cutts, Spencer) ; Tring (Elliman) ; Hammond Street, Cheshunt (Boyd) Mr. Elliman remarks that this insect is local, but common where it occurs. Mr. Boyd finds it scarce obliterata, Hufn. (heparata, Hw.). Sandridge (Griffith) HYDRIOMENIDJE (continued) Asthena candidata, SchifF. St. Albans, Harpenden, Bricket Wood and Shenley (A. E. G.) ; Sandridge (Griffith) ; Hitchin (Durrant) ; Haileybury (Bow- yer) ; Watford (Cutts, Spencer) ; Tring (Elliman) ; Broxbourne Woods (Boyd) A common species murinata, Sc. (euphorbiata, F.). Tring (Foulkes) dilutata, Bkh. St. Albans, Radlett and Shenley (A. E. G.) ; Sandridge (Grif- fith) ; Hitchin (Durrant) ; Hailey- bury (Bowyer) ; East Barnet (Gil- lum) ; Bushey (Cutts) ; Watford (Spencer) ; Bushey Heath (Barraud) ; Tring (Elliman) ; Cheshunt (Boyd) Very common on fences at ' light,' etc. Xanthorhoe vittata, Bkh. (lignata, Hb.). Hitchin (Durrant) ; Haileybury (School List) ; has occurred at Cheshunt Marsh (Boyd) cervinata, SchifF. St. Albans and Harpen- den (A. E. G.) ; Sandridge (Griffith) ; Hitchin (Durrant) ; Haileybury (Bow- yer) ; East Barnet (Gillum) ; Bushey (Cutts) ; Watford (Spencer) ; Tring (Le Quesne) ; Cheshunt (Boyd) This species is local, but common where it occurs. I have taken the larvae in considerable numbers on hollyhocks at Avenue House, St. Albans limitata, Sc. (mensuraria, SchifF.). Brook- lands Farm, Elstree, and Bamville Wood Farm, Harpenden Common (A. E. G.) ; Sandridge (Griffith) ; Hitchin (Durrant) ; Haileybury (Bow- yer) ; East Barnet (Gillum) ; Oxhey Wood (Cutts) ; Watford (Heaton, Wigg) ; Tring (Elliman) ; Cheshunt Marsh (Boyd) Common plumbaria, F. (palumbaria, Bkh.). St. Albans (A. E. G.) ; Sandridge (Grif- fith) ; Hitchin (Durrant) ; Haileybury (Bowyer) ; Hertford (Stephens) ; Bushey (Cutts) ; Watford (Heaton) ; Oxhey (H. Rowland-Brown) bipunctaria, SchifF. Sandridge (Griffith); Hitchin (Durrant) ; Hertford (Ste- phens) ; Gallows Hill, Haileybury (School List) ; Tring (Elliman) Mr. Elliman reports that this species is very common on the chalk multistrigaria, Hw. St. A/bans (A.E.G.); Hitchin (Durrant) ; Watford (Spen- cer) ; Canal bank, Tring (Goodson) 135