Whimberry

Another variable species: when fed upon whimberry or cowberry it is a most distinct-looking insect, often with the white patches placed in a triangle, one on the disk, one on the hind margin, and the usual one: no band.

The lovely pink bloom of the whimberry stalk drops on the turf as the inner part knits itself into hard, green, beady fruit, whilst the leafage changes from a soft green to yellowish brown.

She made whimberry tarts and we ate them with thick, yellow cream until we were tight as drums.