This is one of those anomalous types whose real affinities are 

 not easily determined ; it certainly seems to approach the Se- 

 migeometric Noctuae, such as Acosmetia and Ophiusa, plates 

 356 and 475, but it likewise very much resembles the Litho- 

 sida2, plates 499, 56, 16'9, and 36, not only in the shape of the 

 wings but in its habits as far as they are known ; it would be 

 a great acquisition to ascertain the Caterpillar, as that possibly 

 with its oeconomy might throw some light upon its affinities. 

 Hiibner gives our insect as a Geometra, but I am not aware 

 that M. Treitschke or M. Duponchel have noticed it ; pro- 

 bably it is a rare species on the continent, and in England it 

 did not appear to be known when the " Lepidoptera Britan- 

 nica" was commenced, as it is not described in that work, al- 

 though it was afterwards recorded in the Transactions of the 

 Entomological Society, of which Mr. Haworth was the Pre- 

 sident. 



S. anomalata is by no means a common insect in this country, 

 although few good cabinets are without specimens. Several 

 were taken a few years since by Mr. Dale on the low parts of 

 Parley Common, abounding with Sweet-Gale {Myrica Gale), 

 called the Withe-beds : some appeared as late as September, 

 and I remember his taking one the 8th of August 1 825, near 

 Inversnaid Fort on our way to the Trossacs; Mr. Bentley and 

 his friend Mr. Chant took it on the wing in the evening in 

 the New Forest, the end of August. Mr. Heysham showed 

 me a charming specimen taken in a fir plantation the 1 9th of 

 August, near Newby Cross ; Mr. Marshall captured a female 

 on Skiddaw, and Mr. J. Standish has met with it I think in 

 Kent ; it was also discovered in Devonshire by my lamented 

 friend the late Dr. W. E. Leach. 



The Plant is Vaccinium ulighiostim, Great Bilberry, trans- 

 mitted by T. C. Heysham, Esq. 



