Zuringspanner – Lythria cruentaria

Nederlandse namen:

• zuringspanner
• purperrode spanner
• purperspanner
• purpervlinder
• schapenzuringspanner

Wetenschappelijke namen:

• Lythria cruentaria
• Lythria purpuraria
• Aspilates purpuraria
• Lythria purpurata
• Lythria rotaria

De zuringspanner komt ook voor in The natural history of British Moths, waar de vlinder The purple-barred yellow heet:

The Purple-barred Yellow. – The antennæ of the male are strongly pectinated, almost plumose, the pectinations long and rather distant; those of the female are only pubescent: the fore wings are olive yellow, with the fringe and two or three transverse bands, neither of which quite reaches the inner margin, of a vinous rose-colour; the first of these bands is slightly bent, the second is oblique, but not bent: the hind wings are of a deep dingy fulvous colour, with rose-coloured fringe, and having the white of the base and the inner margin, suffused with darker olive.

The back of the CATERPILLAR is either dull green or of the same vinous rose-colour as the perfect insect, with a darker medio-dorsal stripe; the belly is brighter green, the two colours being very distinctly separated: the head, feet, and claspers are of the same colour as the body. It feeds on the various species of polygonum and dock. I know of no moth more variable than this; it seems a perfect Proteus, capable of assuming any size or colour: it is very common on dry hills on the continent of Europe, and occurs also in Scotland and the north of England, flying by day, but has not been taken in any abundance in either locality, and has not been found in Ireland.