. The moths of the British Isles . 2 n. 5. I, \a. Beaded Chestnut: eggs and caterpillar. 2. Red-line Quaker: , ia. The Brick ryggs and caterj>illar. B7. THE SUSPECTED. 7 The Suspected {Dysckorisfa siispectd). Of this species (Plate 4, Figs. 2 and 3) there are two groupsof forms—plain and variegated. To the first belongs the typewith reddish-brown fore wings ; a dark modification of thisform is ab. nigrescejis^ Tutt, which has the fore wings blackishred; a brighter red form is ab. rufa, Tutt. Of the variegatedsections three forms have been named, but the most importantof these i

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. The moths of the British Isles . 2 n. 5. I, \a. Beaded Chestnut: eggs and caterpillar. 2. Red-line Quaker: , ia. The Brick ryggs and caterj>illar. B7. THE SUSPECTED. 7 The Suspected {Dysckorisfa siispectd). Of this species (Plate 4, Figs. 2 and 3) there are two groupsof forms—plain and variegated. To the first belongs the typewith reddish-brown fore wings ; a dark modification of thisform is ab. nigrescejis^ Tutt, which has the fore wings blackishred; a brighter red form is ab. rufa, Tutt. Of the variegatedsections three forms have been named, but the most importantof these is var. congener^ HUbn., with the inner and the outermarginal areas of the reddish fore wings ochreous ; two othermodifications have the ground colour redder or dark purplishinclining to blackish. The caterpillar, which feeds on birch and sallow in April andMay, is purplish brown above, and obscure greenish beneath ;there are three lines along the back, the central one white anddistinct, the others less defined but noticeable on

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