NEW BRITISH SPECIES IN 1856. 101 



two or three dark brown spots before the middle of the 

 hind margin of the fore wings is also a noticeable distinction. 



Taken by Mr. S. Stevens, in a salt marsh at Southend, 

 in July. 



It is surprising that the Linnasan Gnomana, another 

 species nearly allied to Spectrana, has not yet occurred 

 here. Herrich-Schaner says of it, " abundant everywhere 

 on hawthorn." 



DlCRORAMPHA TANACETI, n. Sp. 



Alls anticis latiusculis griseo-olivaceis, striis transversis 

 obsoletis pone medium pJumbeis, macula magna trian- 

 gulari dorsali dilutiore ; alis jiosticis dilute griseis. 



Exp. al. 6 — 6-J- lin. 



Head, face and palpi greyish-olive. Anterior wings rather 

 broad, greyish-olive, with some faint transverse leaden mark- 

 ings beyond the middle ; on the middle of the inner margin 

 is a triangular blotch paler than the ground colour, which is 

 sharply defined towards the base, but gradually shades off 

 at its hinder edge. The form of this marking reminds one 

 strongly of JD. Artemisia? and D. Acuminatana, and in the 

 form of the wings the insect resembles Artemisia, but the 

 ground colour is totally different. Cilia pale yellowish- 

 olive, darker externally. Posterior wings pale grey, with 

 pale greyish-ochreous cilia, thus much paler than in Ar- 

 temisia?. 



Several specimens of this insect have been taken by Mr. 

 Thompson of Crewe, among tansy. And I have a specimen 

 from Scotland, which I have had by me several years. 



It is of course rather hazardous to describe a new species 

 of this group, but before doing so specimens of this insect 

 were submitted to Professor Zeller for his opinion, and he 

 could not find that they agreed with any known species. 



