52 
PLUSIA GAMMA. 
SILVER-Y. 
Plate LX IX. Figure 5. 
Localities for this excessively common species are York, 
Nunburnholme,Sutton-on-Derwent, Charmouth, Bowdon, 
NafFerton, Falmouth, Faversham, Milstead, etc., etc., 
etc., etc. 
The situations where it is found are fields, gardens, 
lanes, etc. 
The perfect insect appears in June, July, August, 
September, and October. It has been known to come 
out December 8 !—13 !! 
The caterpillar is green, with a bluish green line along 
the back edged with slender white lines, and below it on 
each side a pale whitish green line; the side line 
yellowish, edged above with dark green; the spots white. 
The date of the appearance of the caterpillar is in 
April, July, August, and September. 
It feeds on many low plants. 
The chrysalis is found in a cocoon of silk. 
PLUSIA INTERROGATIONS. 
YORKSHIRE-Y. SCARCE SILVER-Y. 
Plate LXIX. Figure 6. 
Localities for this species are Llangollen, Preston, 
Shrewsbury, Carlisle, Manchester, Arran, Huddersfield, 
Kilmim, Darlington, Rannoch, Golspie, and Inver. 
