TRIFID^. 1 1 5 



stem. At early dusk on very still evenings it flies over the 

 beds of Lyme-grass, and is then rather conspicuous. It soon 

 alights and sits on the plant most of the night. It has 

 been known to come to a strong light, but does not appear 

 to take food of any kind. It was first captured in this 

 country in 1861, on the Norfolk coast, by the late Mr. G. R. 

 Crotch. At the time the impression got abroad that it had 

 been found in the Norfolk Fens, where Mr. Crotch was at the 

 time busily collecting ; but the coast is readily reached by a 

 trip down the river Bure from Ranworth or Horning, and it 

 is very certain that the moth is found only among the plant 

 already mentioned — the Lyme-grass — which grows upon 

 sandy shores ; and never inland nor in marshy places. It 

 may still be found wherever this plant occurs on the coast of 

 Norfolk, and is sometimes common near Hunstanton ; also 

 on those of Lincolnshire, Yorkshire, and Durham ; and there 

 is a record in South Devon. With this exception it seems 

 quite confined to the East Coast, and is very probably a recent 

 immigrant. The only other locality for it of which I am 

 aware in the United Kingdom is on the east coast of Scotland, 

 in the county of Forfar. Abroad it is common on the coasts 

 of Denmark and Northern Germany, and probably in various 

 other parts of those of the Baltic and the North Sea. 



Genus 52. CALAMIA. 



Antenna ciliated ; eyes naked, with partially prostrate 

 back lashes ; thorax broad, smooth ; abdomen rather stout, 

 not crested; fore wings angulated at the apex and rather 

 truncate, of pale colouring and very faint markings ; hind 

 wings with vein 5 very weak, arising close to the middle of 

 the cross-bar. 



Larv^ naked, feeding wholly or partially within stems of 

 reed. 



PuPiE in the larval habitation or in the earth close by. 



