ZYGJEtJlDM. 333 



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. 



ZYG^NIDyE. 



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 some- 

 where around, the same spot. The caterpillars bear a close 

 resemblance to each other, and are not always easily 

 distinguished. 



Over thirty species of ZygcBtia are found in Europe, and about 

 thirty-six more have been described from other parts of the 

 Pal^arctic Region. There are at least twenty-five Palaearctic 

 species referred to the genus Ino^ and about ten of these are 

 European. 



By most authors filipendiilce is regarded as the type of the 

 genus Zygcena, Fabricius ; but others refer this species, and its 

 allies, to the genus Anthrocera, Scopoli, using the Fabrician 

 oQXiVisior phegea, Linn^us. The latter species and its alHes are 

 perhaps more frequently referred to Syntoinis, Ochsenheimer, 

 the typical genus of the family Syntomidae, the systematic 

 position of which is near the Arctiidae. It may be added that 

 S. phegea, and also Naclia ancilla, have been reported as 

 British. There does not seem, however, to be any reason to 

 suppose that the occurrence of either species in Britain could be 

 other than accidental. 



