upon tlic subject; and the only minute liifference I liave been 

 able to detect, is the peculiar ciliation of the underside of the 

 antennae : as a natural group, however, they have long been 

 recognised and known in this country by tlie appellation of 

 Salloivs^ and are remarkable for the fine orange and brown 

 tints that ornament their upper wings. Nocttia croceago Fab., 

 from its depressed body and the different character of its 

 palpi, will probably form a distinct genus; and Noctiia ci- 

 trina^ and A", helvola, will form divisions of our group; — 

 with these there are 8. indigenous species of this beautiful 

 genus. 



1. X. centrago Haw., Nob. 



2. aurago Fab. 



3. flavago Fab. 



4. fulvago Linn. — rubago Do7i. v. 10. pi. SiiS.Jl 2. 



5. gilvago Fab. 



6. citrago Linn. 



1. citrina Don. v. \0. pi. 340./ 2. 



8. helvola Linn. 



The rare species figured was first described by Mr. Ha- 

 worth in his Lepidoptera Briiannica^ and appears to be un- 

 known upon the Continent, the only species approaching it 

 being the Noctua Xcrampdina of Hiibner. 



The caterpillar most likely feeds upon the Sallow, as the 

 specimen that I found in 1813 resting upon a plant in some 

 meadows at Costessey in Norfolk, was within a few yards of a 

 willow-ground. Mr. Howard Sims found a specimen about 

 the same time, which is, 1 believe, in the British Museum. 

 Mr. Haworth records another specimen taken in Norfolk by 

 the Rev. T. Skrimshire; and the beautiful female figured, came 

 to a lighted cimdle at Glnnville's Wootton, Dorset, and wa.s 

 taken by Mr. Dale, 26th Sept. 1816. 



Saxiftaga gra/i/ilcfa (White Saxifr;ige) is figured in the 

 plate. 



