84 ANNALS OF SCOTTISH NATURAL HISTORY 



from centre of base to near the centre of outer margin, outer 

 half broadest, and lower edge serrated ; fringes pale, almost 

 white. Hind-wings, dark brownish gray, fringes paler. 

 Abdomen, dark brownish gray, anal tuft slightly ochreous. 

 Legs, ochreous brown. Expands about 22 mm. 



Occurs in July. Frequents grassy mountain slopes at 

 from 2500 to 4000 feet. Flits about over the grass on quiet, 

 warm, sunny days. It is local, but not rare where it occurs. 

 I have taken it on several of the mountains near Braemar. 

 also on the Glen Shee and Perthshire hills at a high elevation, 

 It is recorded from the counties of Argyll, Perth, Inverness, 

 Forfar, Aberdeen, Elgin, Ross, and Sutherland. The larva 

 is said to feed under the club-moss. Probably it also feeds 

 on other species of moss, as club-moss is not always present 

 where fitrcatellus occurs. 



Crambus margaritellus, Hb. 



Antenna?, ochreous white. Palpi, white, or dirty white. 

 Head, white. TJwrax, white, shoulders pale brownish ochreous. 

 Fore-wings, brownish ochreous, or dark brownish ochreous ; 

 a broad white streak from near the costa at base almost 

 reaches the hind margin ; streak broadest beyond the middle. 

 Hind-wings, pale gray, with a slight glacious tinge. Abdo- 

 men, pale gray, anal tuft slightly ferruginous. Legs, whitish 

 ochreous. Expands about 24 mm. 



Occurs in July and August. Frequents wet moss and 

 damp woods. Flies naturally about sundown and dusk. 

 Although local, it is widely distributed in Scotland, and is 

 common where it occurs. 



Section IV. — Fore-wings with a pure white interrupted 

 longitudinal streak. 



a. The streak with one interruption. C. pinetellus. 



b. The streak with two interruptions. C. myelins. 



Crambus pinetellus, Linn. 



Antenna?, yellow ochreous. Palpi, white above and 

 below, brownish ochreous at the sides. Head, white. 

 Thorax white, shoulders yellow ochreous. Fore - wings, 



