Nov. 5,1921 Pale Western Cutworm 317 



The thoracic shield is brownish with a light dorsal stripe ; in the lighter 

 area on the anterior margin of the shield and on either side of the dorsal 

 stripe are distinct blackened spots, with other dark spots toward the 

 lateral margins of the shield. 



Thoracic legs tinged with brown, claws and markings anterior to and 

 partially surrounding basal joints reddish brown. 



Fully developed prolegs on segments 7, 8, 9, 10, and 13 are concolorous 

 with body; crotchets brownish. The anal plate is marked with a trans- 

 verse row of small brownish spots anterior to the setae. 



The dorsal line is a greenish gray and bordered with brown; the sub- 

 dorsal and lateral stripes brownish; the general color is about the same 

 or perhaps a trifle lighter than the dorsal stripe. 



SIXTH INSTAR 



Head width, 1.98 to 2.64 mm.; average 2.41 mm. 



Total length of body, 2.0 to 2.5 cm.; average 2.2 cm. 



Head light brown; ocellar region very dark brown; ocelli i, 2, and 6 

 transparent, other three brownish; mandibles reddish brown to black 

 at teeth; lower margin of labrum reddish, blackened at notch; cardo and 

 submentum brown with the margins of stipes next the mentum same 

 color with the stripe broadening apically about the base of the palpifer. 



The two conspicuous bands of dark brown persist on the epicranium 

 bordering the adfrontals (PI. 28, F); the stripes become a lighter color 

 at top, ending near the first epicranial setae; a denser colored portion of 

 each band follows the adfrontals almost to their apex. 



The thoracic shield is brownish with a light dorsal stripe ; in the lighter 

 area on the anterior margin of the shield and on either side of the dorsal 

 stripe are distinct blackened spots with other dark spots toward the 

 lateral margins of the shield. 



The thoracic legs tinged with brown, claws and markings anterior to 

 and partially surrounding basal joints reddish brown. 



Fully developed prolegs are found on segments 7, 8, 9, 10, and 13, con- 

 colorous with body; crotchets brownish. The anal plate on the thirteenth 

 segment, a pale green in color, possesses a transverse row of brownish 

 spots anterior to the setae; a light-colored dorsal stripe runs through the 

 plate. 



The dorsal stripe is a broken gray green bordered with light brown; 

 the subdorsal is brownish, but the lateral has become lighter in color, 

 brownish gray. Sets single, ringed at base with a light-colored area; 

 tubercles greenish brown; spiracles black. 



SEVENTH INSTAR 



Head width, 2.70 to 3.18 mm.; average 2.93 mm. 

 Total length of body, 2.9 to 3.2 cm.; average 3.02 cm. 

 I Head light brown; ocellar region very dark brown, ocelli 1,2, and 6 

 transparent, other three brownish; mandibles reddish brown to black at 



