X-iii Decenibei, 



Genus 4, Heydenia, Hofrn. — Agreeing with jSSchmia in all other 

 particulars, but the imagos in this genus are devoid of any projecting 

 scales along the inner margin, and of dividing lines in the fringes. 

 Our three British species may be distinguished by the number of 

 the spots. 



A. Fore-wing with three yellow spots 1. auromaculata, Frey. 



B. Fore-wing with two yellow spots .... 2. fulviguttella, Z. 



C. Fore-wing unspotted , 3. prof ugella, Stn. 



1. auromaculata, Frey, Schweiz., E. G., ii, 7, 290, Lep., 376 ; Hein., 405 ; Ba., Ent. 

 Mo. Mag., xxiii, 13. 

 Fore-wing dusky olive-brown, with three dull orange spots ; the 1st on the inner 

 margin before the middle, the 2nd between it and the apex, the 3rd below the co*t;i 

 towards the base ; this last often indistinct, and composed of two smaller spots. 

 The base is often dusted with orange, and sometimes an indistinct orange streak 

 appears along the fold. Hind-wing greyish-brown. Head dull orange. VIII, IX. 



Larva dirty white ; head small, black ; corselet smutty in front, 

 edged with black behind; sub-dorsal lines brown, pale, indistinct; 

 spiracles black ; spots large, grey, with short dark bristles ; anal flap 

 smutty ; a dull smutty bar on the 13th segment ; legs black. Feeding 

 in autumn inside the carpels of Angelica sylvestris, uniting them to- 

 gether and passing from one to another. Pupa, in captivity, among 

 the seed-heads. 



This species was first detected in Shetland in 1883 by Mr. Mc 

 Arthur. The larvae were collected in plenty in the autumn of 188G 

 by Messrs. Curzon and Salvage. It occurs also in the Swiss High- 

 lands, and appears to be exclusively a sub-alpine form. 



2.JiilvigutteUa,Z., Isis, 1839, 193; H.-S., v, 140; Frey, Tin., 159, Lep., 376; 

 Hein., 405 ; Snell., 738; — minuteUa (ffip.),Stph., Ill.,;iT, 354 ; Wd., 1577 ; 

 = flavimaculella {(Ecophora), Stn., I. B., 157, Man., 2, 351. 



Fore-wing dusky olive-brown, with only two dull orange spots, one on the inner 

 margin, and the other between it and the apex ; the base sometimes also dusted 

 with orange. YII, VIII. 



Larva whitish, with brownish head. In seeds of Angelica sylvestris 

 and HeracJeum spliondylium in late autumn. 



Stalariella, Heyd., a continental species, seems to be an inter- 

 mediate form, having sometimes only tioo orange spots, as in fulvi- 

 guttella, and at others traces of the additional costal spot of auro- 

 maculata. 



3. profngella, Stn., E. A., 1856, 38, 1864, 107, Man., 2, 402 ; Hein., 406 ; Frey, 

 Lep., 376 ; Hodgk., Ent. Mo. Mag., x, 90. 



