250 F.LAomsTin.'E. 



species we have yet observed, exccjiting E. rvfocinerea , of wliich, 

 tliougli the larva has not been found, the pupa has on several 

 occasions been met with and reared. 



The sjiecies of this genus are extremely numerous, and forty 

 are already known as British, which may be arranged in the fol- 

 lowing tafjle : — 

 a. Anterior wings dark l)vowu or black, with sharp metallic fascice and 



spots. Species 1-5. 

 n a. Anterior wings dark brown or black, witli a distinct pale fascia 



and spots. Species G-11. 

 a a (I. Anterior wings grey or black, with an indistinct pale fiiscia and 



spots, or with spots only. Species 13-21. 

 a a a a. Anterior wings dark fuscous or l)lack, with a single distinct 



white, whitish, or yellowish fascia. 



h. Head dark. Species 22-24. 



h h. Head pale. Species 25-28. 

 a a a a a. Anterior wings white or grey, with a distinct dark spot on 



the ibid in the middle. Species 2'J-33. 

 a a a a a a. Anterior wings white, with a few distinct dark spots. 



S])ccies 34, 35. 

 a a a a a a a. Anterior wings white or whitish, irrorated with dark 



atoms. Species 36-38. 

 a a a a a a a a. Anterior wings unicolorous. Species 39, 40. 



1. Pfeiiferella, Iliib. Tin. 398 (181G); Step.; Zell. ; Sta.— 

 qi(ailri[/utlclla, Haw. Alls anticis nitidis aureo-brunneis, fascia angu- 

 lata ante medium, macidis duabus suhopjjosUls triangularibns pone me- 

 dium nitidis aureis. Exp. al. 4 lin. 



Head, face, and palpi golden-brown. Antennae fuscous. Anterior 

 wings glossy golden-brown, with a slender angulated bright golden 

 fascia before the middle, nearest to the base on the inner margin ; be- 

 yond the middle is a triangular golden spot on the inner margin, and 

 iwnrhj opposite to it, but placed a little posteriorly, is a larger spot of 

 the same colour on the costa ; cilia golden-brown, at the extreme a]iex 

 grey. Posterior wings greyish-piu'ple, with grey cilia. 



Not uncommon in many localities in May; it seems rather 

 partial to a chalky soil, yet I have found it on clay. 



2. Treitschkiella, V. v. 11. 297. pi. 1 00. f. 4 (1 843) ; Sta.; Dap.? 

 Alis anticis nitidis aureo-])runneis, fascia arcnata ante medium, macula 

 triangvdari dorsali pone medium, macula triangulari costali posteriore, 

 niti(Us aureis. Exp. al. 3 lin. 



Head, face, and palpi golden-brown. Antcnmc fuscous (annulaicd 

 witli whitish?). Anterior wings shining golden-brown, with a slender, 

 slightly curved, pale golden fascia before the middle, nearest the ])asc 

 on the inner margin ; beyond the michllc is a triangular pale golden 

 s]iot on the inner margin, and heyond it is a costal spot, nearly triau- 



