306 NORTHERN ZOOLOGY. 



DESCRIPTION. 



Body, and primary wings, light-brown. Antennae and anal hairs black ; head and base of the 

 primaries, bright orange : trunk, back of the abdomen, and outside of the thighs, cyaneous or blue- 

 green ; fringes of the wings white, but in the middle of the posterior margin brown : secondaries 

 short. 



Family NOCTUID-^. Noctuidans. 



CXCV. Genus PLUSIA. Ochs. 



(429) 1 . * Plusia rectangula. Rectangular Noctua. 



P. (rectangula) alis primoribus cinereis, nigro nebuhsis; macula discoidali nivea, rectangula, subramosa. 

 Rectangular Plusia, primary wings ash-coloured, clouded with black, with a rectangular, subramose, snowy-white, discoidal 

 spot. 



Expansion of the wings H inch. 



Taken in Canada by Dr. Bigsby. 



DESCRIPTION. 



Body cinerous, underneath whiter. Antennae testaceous : thorax crested ? as the scales are mostly 

 rubbed off this cannot however be positively asserted ; wings incumbent ; primaries with a subcrenate 

 edge ; inclining to ash-coloured, clouded with black, with a subramose rectangular somewhat silvery 

 spot, extending from near the base to the middle of the wing ; between which and the apex is a 

 narrow white wavy band, edged with black ; and still nearer the margin a zigzag transverse black 

 line : the secondary wings are plicatile, cinereous, and dusted at the apex with brown. 



N.B. The silvery rectangular spot in the primary wings of this insect, when they are brought 

 near to each other, forms a quadrangular area very much resembling a picture in a silver frame. 



