Note.—This species, and the other five here included in Ephyra, have been referred to Zonosoma, Lederer, and more recently to Cyclophora, Stephens.
Maiden's Blush (Ephyra punctaria).
In a general way, this moth (Plate [53], Figs. 10-12) is not unlike the last mentioned. Apart, however, from the absence of ringed dots on all the wings, the central line is more prominent. Certain vagaries occur in connection with this line, which is generally reddish, or purplish brown. Occasionally, it may be visible on the fore wings, but absent on the hind wings; or it may change its course about mid-way, and turn inwards to the base of the fore wing. I have a specimen from Surrey in which this line is double the normal width, and dark purplish in colour. Examples of the second generation have brownish clouds on the outer margin (Fig. 12).
The caterpillar is pale reddish-ochreous or bright green; a black line along the middle of the back, and a brownish one along the sides; a black horse-shoe mark, edged below with yellow, on the back of rings four to nine.
It feeds, in June and July, on oak, but may be reared on birch; also found in September as a second brood.
The moth is out in May and June, and specimens of a second generation are often not uncommon in August. It occurs in woodlands throughout England, but is most plentiful in the south. In Scotland, it appears to be local in Clydesdale, but is found thence up to Moray. In Ireland, only recorded from Galway (two specimens).
Clay Triple-Lines (Ephyra linearia).
This species (Plate [53], Fig. 13) varies in the general colour from yellowish to pale reddish ochreous; the cross lines are also variable, often the first is missing (Plate [53], Fig. 14), and not infrequently the dark central line is the only visible marking, but very exceptionally the central line is very little, if at all, more distinct than the normal first and second. The ringed white dots are rarely very conspicuous, and are often quite absent.
The caterpillar is pale brownish, with a brown-edged yellowish line along the middle of the back, and some yellow-edged dark-brown streaks on the sides. In another form, the head is brown and the body green.