NEW BRITISH SPECIES SINCE 1835 . 
37 
tinguished from it, frequents poplars. Guenee says—“ The 
larva lives in the buds of the poplars, and is almost as 
abundant as that of gilvago is on the elms.” 
Gortyna Petasitis, Doubleday ; first recorded as cap¬ 
tured in this country by myself (Zoologist for 1846, page 
1229). A notice of its habits by Mr. Edleston appears in 
the Zoologist for the same year at page 1347. It frequents 
the butter-bur, Tussilago Petasites , the larva feeding in the 
root of that plant, as observed by Mr. N. Cooke in the 
Zoologist for 1850, page 2932. The species was first de¬ 
scribed by Doubleday in the Zoologist for 1847, page 1914, 
ancl since has been described and figured by Freyer and 
Herrich-Schaffer under the name of Vihdelicia . Since the 
northern collectors have learned to breed the species it has 
become generally distributed in collections. 
Caradrina exigija, Hiibner; first enumerated as Bri¬ 
tish in Doubleday's Catalogue, at page 27. A specimen taken 
by Mr. Maitland at Ventnor is in his collection. 
Hydrilla palustris, Hiibner; a specimen taken near 
York is in the collection of Mr. Allis. Apparently a scarce 
continental species, occurring, according to Guenee, “in 
South Russia, Austria, the Valais, in May and July.” 
Nonagria extrema, Hiibner; first enumerated as Bri¬ 
tish in Doubleday’s Catalogue, at page 27, the species named 
extrema at page 7 having been ascertained to be really fulva. 
Jt has occurred in some numbers at Whittlesea-Mere in 1848 
l 'nd 1849, and is in most collections. It is at once distin¬ 
guished from N. fulva and N, Hellmanni by the straight 
binder margin of the bone-white anterior wings. Guenee 
describes it under the name of JV. concolor 7 conceiving it to 
be distinct from the extrema of Hiibner, though probably 
] dentical with the extrema of Herrich-Schaffer. 
Nonagria Hellmanni, Eversman; the capture of this 
s pecies in this country is first recorded by Mr. Bond in the 
