2:^2 



•1. Dorsal si i'H)(' not distinctly reddish. f) 



A hroiid siennu-rcd dorsal stripe TIu> H(Hl-l)acked (Cutworm, p. :{ I 



5. Subdorsal dark slri])es includiiig the ixistcrior pilii'erous spots and not 



widely separatc^d; head mostly dark. (i 



Subdorsal dark stripes not ineludinfr liie dorsal pilii'erous spots, se|)a- 



rated by a broad pale strijje. 8 



6. Body color dark greasy gray, witli \ague lateral stripes (Kig. 3) 



'I'he Cireasy Cutworm, p. 21 



Within the pale dorsal stripe a pale median line with dark border. 

 Three pale lines below the subdorsal dark stripe, the lowest the 

 broadest. 7 



7. Head with broad dark stripe ea*:h side of middle, sides of head pale, 



with network of dark lines (Fig. 10). . . .The Clay-backed Cutworm, p. 28 



Head shining black. A northern species 



The Common Striped Cutworm, p. 84 



8. A broad lateral dark stripe (Fig. Ifi) The Dark-sitled Cutworm, p. 82 



A narrow black lateral stripe; hairs coarse and long; length al)out one 



inch (Fig. 18) The Bristly Cutworm, p. 85 



9. Dorsal stripe narrow, with a pair of diverging oblique marks on each seg- 



ment; skin roughly granulated (Fig. 15) 



The Granulated Cutworm, p. 32 



Dorsal pale stripe broad, including the dorsal piliferous spots; each seg- 

 ment with an oblique mark on each side leading from the lateral dark 



stripe, in front of whicli this stripe is oblicjuely notched (Fig. 9) 



The Dingy Cutworm, p. 26 



The Western Striped Cutworm, p. 26 



Lateral dark stripe broken up into narrow streaks. A large dark patch 

 near the posterior end and a row of yellow dots at the middle on the 



anterior half of the body (Fig. 5,6) 



The Variegated Cutworm, p. 28 



Body pale, with indefinite markings except for a row of dark brown 

 subtriangular spots each side of the back, beginning near the pos- 

 terior end and fading out before reaching the head (Fig. 7) 



The Spotted Cutworm, p. 25 



Body pale, two rows of similar dark spots each side, not fading out 

 forwards but stopping abruptly on the fourth segment behind the 

 head (Fig. 14) The W-marked Cutworm, p. 81 



The Stalk-borers of Corn. 



Under this heading are brought together several caterpillars which injure coin 

 by burrowing inside the young stalk. 



The heart of the corn-stalk bored lengthwise. 2 



The base of the stalk, throughout the season, gnawed and tunneled in all 



directions by small, slender, active caterpillars (Fig. 74, 75), causing it 



to break down readilv. A southern species 



: The Smaller Corn Stalk-borer, p. 94 



2. A striped caterpillar one or two inches long when full grown. 8 



A smaller, pale caterpillar, with darker shining piliferous spots. 4 



8. The interior of the stalk irregularly eaten out, the leaves with irregular 

 holes and the terminal leaf often killed; the side of the stalk often 

 penetrated by a round hole which is more or less plugged by excre- 

 ment. Within the stalk a purplish brown caterpillar with longi- 

 tudinal white lines (Fig. 25, b, c) . The Stalk-borer or " Heart-worm," p. 44 

 A gray, striped, cutwormlike caterpillar. . . Ilelotropha ntiiformis aim. p. 78 

 A slender caterpillar with four complete brown stripes, two lateral and 

 two near together on the back. Eats the stem of the plant under 

 ground and bores upward, often killing several plants in succession.. . . 



llddcna stipntn, p. 77 



A slender caterpillar with brown stripes, which feeds on the rolled leaves 

 of the growing tip of the plant and bores downward to its ba.se .... 



llddcna frartilinea, p. 77 



llddcna miscra, p. 77 



4. The young corn entered near the ground, the heart of the stalk eaten 

 out, round holes mad(\ and tile opening leaves and th(> growing tip 

 cut off and killed The Spindle-worm, p. 85 



