Nov. 5, 1931 Pale Western Cutworm 315 



Prolegs on segments 9, 10, and 13 (counting the head as the first seg- 

 ment); crotchets brown; rudimentary prolegs slightly visible as small 

 tubercles on segment 8. 



There is a reddish brown mottling over the lateral and dorsal regions, 

 becoming more distinct along the posterior segments. Before the larva 

 has taken food this coloration appears much darker. The general color 

 of the newly hatched larva is brown. The spiracles dark brown, setae 

 single and arising from minute brownish tubercles. 



SECOND INSTAR 



Head width, 0.47 to 0.576 mm.; average 0.53 mm. 



Total length of body, 2.8 to 3.77 mm.; average 3.3 mm. 



The head (PL 28, B) remains a dark, shiny brown; mandibles and 

 labrum dark brown, mandibles at teeth and labrum at notch blackish; 

 ring-shaped sclerite resting on mentum blackened ventrally and with its 

 setae within the sclerite; cardo dark brown; submentum, margins of 

 stipes next the mentum, antennae, and labial palpse brownish; ocellar 

 region blackish. 



Thoracic shield dark brown posteriorly, but not as dark as head; 

 anterior margin light brown. On each side of the light brown dorsal 

 stripe is a dark spot on the anterior portion of the shield with several 

 dark spots laterad. 



Prolegs on segments 8, 9, 10, and 13; crotchets on eighth segment con- 

 sisting of only two or three hooks; rudimentary prolegs on segment 7 

 beginning to show; crotchets reddish brown. 



The dorsal stripe is gray, bordered with broken lines of brown; sub- 

 dorsal and lateral stripes brownish; spiracles dark brown; setae single, 

 tubercles brownish. 



THIRD INSTAR 



Head width, 0.68 to 0.786 mm.; average 0.75 mm. 



Total length of body, 4.19 to 5.5 mm.; average 4.29 mm. 



Head brown (PI. 28, C) with upper parts of lobes of epicranium dark 

 brown; front brown but with its lower margin together with clypeus 

 dark brown; mandibles reddish brown to black at teeth; labrum dark 

 brown with blackened notch, ring-shaped sclerite resting on mentum 

 blackened ventrally and with its setae within sclerite ; cardo dark brown ; 

 submentum, margins of stipes next the mentum, antennae and labial 

 palpae brownish; ocellar region blackish. 



Thoracic shield dark brown, almost black at posterior region; an- 

 teriorly it is a lighter brownish gray with a small black spot on either 

 side of the light dorsal stripe and with several dark spots laterad. 



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

 partially surrounding basal joints reddish brown. 



