THE CANADIAN ENTOMOLOGIST. 279 



markings as in the previous stage. Feet black. Head whitish, its 

 tubercles all shining black, a little brown shading around mouth and eye. 

 Width, 0.7 mm. Joints 4-7 and 12 form two humps in the position of 

 rest of the larva. 



Fourth Stage. — Head white, the black spots as before supplemented 

 by many small dusky spots. The black tubercles form three transverse 

 rows ; a black dentate line above mouth. Width, 1.15 mm. Body white, 

 tinged with orange on joints 5, 6 and 12 dorsally and along the region of 

 tubercle iv. the whole length. Tubercles large, conical, black ; hairs all 

 pale, rather stiff, long, single. The body is mottled with brownish-black 

 in irregular streaks between the tubercles, except subdorsally where the 

 white ground prevails. Rims of spiracles, thoracic feet and leg plates, 

 black. 



Fifth Stage. — Head white with many black spots, all the spots of 

 the preceding stage being now equally black. Width, 1.6 mm. Body as 

 before, but the tubercles and narrow irregular marks velvety black. The 

 orange shades spread, lending to form transverse bands ; on joints 5, 6, 

 II and 12 tne faint orange bands are complete. The black marks are 

 thickest ventrally, predominating, thin subdorsally ; along dorsal line they 

 form a series of irregular marks enclosing a broken white dorsal line. On 

 the subventral folds the ground colour forms a series of white patches 

 most distinct on joints 11-12. 



Sixth Stage. — Head white with many black spots of various shapes ; 

 mouth parts black. Width, 2.3 mm. Body white, the segments banded 

 with orange, obscurely except on joints 5, 6 and 12. Tubercles large, 

 velvety black, low conic or almost flat, not produced. The velvety black 

 marks on the body form narrow irregularly eroded and broken transverse 

 lines, some only represented by angular marks, all broken subdorsally so 

 as to give the appearance of a white subdorsal band. The lines are about 

 eight on each segment, but so broken and irregular that they are difficult 

 to trace. Dorsally they are partly confluent, formmg branching marks 

 irregularly X or Y-shaped. On the subventral folds the ground colour 

 appears as a series of white patches, the largest situated between joints 1 1 

 and 12. Feet black, venter dark. Hairs long, distinct, rather stiff, white, 

 all single and perfectly normal in arrangement for the Noctuina {Agrotina, 

 Grote). The larva rests with joints 5-6 and 12 hunched up, forming two 

 humps. Larvae from Jefferson, N. H. 



