A male and a female of this species are depicted on Plate 144, Figs. 7 [male] and 8 [female]. There is variation in the amount of dark speckling on the wings, and in the number and width of the cross markings; sometimes the first and second on the fore wings are united throughout their length, or towards the inner margin; coupled with this there is sometimes considerable increase in the width of the first cross marking of the hind wings. A rare variety in Britain is ab. _grisearia_, Staudinger, which is of an almost uniform greyish or greyish-brown colour, with the markings obscured. The caterpillar is purplish grey, marked with paler and darker; two warts on the back of rings 7-10, the middle pair the largest and most prominent. It feeds on ling, heath, broom, and the flowers of gorse or furze, and is best obtained in the spring after hibernation. [Illustration] 2 Pl. 144. 1, 2. GREY SCALLOPED BAR. 3. BLACK-VEINED. 4, 5. YELLOW BELLE. 6. STRAW BELLE. 7, 8. GRASS WAVE. [Illustration] 2 Pl. 145. 1. TRANSPARENT BURNET: _caterpillar_. 2, 2a. NARROW-BORDERED FIVE-SPOT BURNET: _caterpillar, chrysalis and cocoon_. 3, 3a. FIVE-SPOT BURNET: _caterpillar and cocoon_. 4. SIX-SPOT BURNET: _caterpillar_. 5. FORESTER: _caterpillar_. {333} The moth, which is out in June and July, occurs on most of the heaths and moors throughout England; apparently commoner and more generally distributed in the south than in the north; but it seems to be rare on the eastern side of the country altogether. From Cheshire it spreads into Flint and Denbigh, North Wales. In Scotland, it is found in Roxburgh (Bellion Moor), Clydesdale (local, but common), and northwards to Ross. It is found on the boggy heaths of Ireland, and Kane states that it is abundant where it occurs. The range abroad extends to Scandinavia and eastward to Asia Minor. ZYGAENIDAE. The moths belonging to this family are popularly known in Britain as Burnets and Foresters. Of the former seven kinds occur in the British Isles, and of the latter there are only three species. All the species live in colonies, so that when a specimen is seen or captured others may be expected to occur on, or somewhere around, the same spot. The caterpillars bear a close resemblance to each other, and are not always easily distinguished. Over thirty species of _Zygaena_ are found in Europe, and about thirty-six more have been described from other parts of the Palaearctic Region. There are at least twenty-five Palaearctic species referred to the genus Ino, and about ten of these are European.