82 



The Scottish Naturalist. 



Fig. i. 



and occurs in abundance in Scotland, Ireland, the North of 



England, and on Dartmoor and throughout Cornwall, on open 



heaths. The white spot on 



the upper wing is distincly 



visible on the under side of all 



the specimens which I have 



examined. 



No. 2. — Spartii. This spe- 

 cies appears to be confined to 

 a few localities in the south of 

 Europe — it is abundant at 

 Cannes. The direction of the. 

 fascia on the upper wing is 

 different from what it is in 

 quercus or roboris. 



No. 3. — Roboris. This in- 

 sect inhabits central and south- 

 ern Europe, and appears to be 

 rather local. The yellow band 

 on the upper wing turns in- 

 wards on the inner margin, and 

 the fascia on the under wing is semicircular and does not turn 

 down to the anal angle. (Fig. 2.) I have never seen a speci- 

 men in which the w T hite spot on the upper wing is visible on 

 the under side. This is the one which we find here (south of 

 England). The larva will not eat heather, but feeds principally 

 on white-thorn or black-thorn growing in cultivated ground. I 

 have often seen them in the garden, on apricot trees which are 

 trained to the wall. The moth appears in August after remain- 

 ing about a month in the chrysalis." 



The notice of Bombyx quercus at p. 43 (lines 17 — 30) must 

 therefore be altered to the following : — 



QUERCUS L. ; calluna Palmer. Common. Ericetal. Ascends 

 to 1400 feet. 



Distribution — East. Tweed Forth Tay Dee Moray § 



Orkney g 



West. Solway Clyde Argyie West-Ross 

 Hebrides. 



Fig. 2. 



