TIIE STATE ENTOMOLOGIST. 1( T 



The buds injured by the worm-may be readily distinguished by a minute 

 hole where it has entered, and which, when cut open, will be iound 

 partially filled with small black grains, something like coarse gun 

 powder, which is nothing but the digested food after having passed 

 through the body of the worm." 



This insect is very variable in the larva state, the young worms 

 varying in color from pale green to dark brown. When full grown 

 there is more uniformity in this respect, though the difference is often 

 sufficiently great to cause them to look like distinct insects. Yet the 

 same pattern is observable, no matter what may be the general 

 color; the body being marked as in the above figures with longitudinal 

 light and dark lines, and covered with black spots which give rise to 

 soft hairs. Those worms which Mrs. Treat found in green peas and 

 upon corn tassels had these lines and dots so obscurely represented 

 that they seemed to be of a uniform green or brown color, and the spe- 

 cimens which I saw last summer in string beans were also of a dark 

 glass green color with the spots inconspicuous,butwith the stripe be- 

 low the breathing pores quite conspicuous and yellow. The head, how- 

 ever, remains quite constant and characteristic. Figure 42 may be 

 taken as a specimen of the light variet^y, and Figure 43, c, as illustra- 

 ting the dark variety. When full grown, the worm descends into the 

 ground, and there forms an oval cocoon of earth interwoven with silk, 

 wherein it changes to a bright chestnut-brown chrysalis (Fig. 43, d% 

 with four thorns at the extremity of its body, the two middle ones 

 being stouter than the others. After remaining in the chrysalis state 

 from three to four weeks, the moth makes it escape. In this last and 

 perfect stage, the insect is also quite variable in depth of shading, 

 but the more common color of the front wings is pale clay-yellow, 

 with a faint greenish tint, and they are marked and varigated with 

 pale olive and rufous, as in Figure 43, (e showing the wings expanded, 

 and f representing them closed), a dark spot near the middle of each 

 wing being very conspicuous. The hind wings are paler than the 

 front wings, and invariably have along the outer margin a dark brown 

 band, interrupted about the middle by a large pale spot. 



Mr. Glover says that there are at least three broods each year in 

 Georgia, the last brood issuing as moths as late as November. With 

 us there are usually but two, though, as already hinted, there may be 

 exceptionally three. Most of the moths issue in the fall, and hiber- 

 nate as such, but some of them pass the winter in the chrysalis 

 state and do not issue till the following spring. I have known them 

 toissue, in this latitude, after the 1st of November, whenno frost had 

 previously occurred. 



In 18G0 — the year of the great drought in Kansas — the cor; op 

 in that State was almost entirely ruined by the Corn-worm. Accord- 

 ing to the Prairie Farmer, of January 31, 1S61, one county there 

 which raised 436,000 bushels of corninl359 3 only produced 5,000 bush- 

 elsof poor wormy stuff in 1S60; and this, we are told, was a fair sample 



