77 



The species ranges from the Gulf of Mexico to Canada and from the 

 Atlantic to the Pacific. 



The eggs have been found in clusters of thirty or more on strawberry 

 and dandelion plants. The larva is commonest in fields and gardens. 

 When full grown it spins a loose cocoon in some 

 sheltered place, within which it changes to a 

 black pupa about three quarters of an inch in 

 length, with a dense tuft of hooks at the tip of 

 the abdomen. The species winters in the cater- 

 pillar stage, partly grown. Adults appear in May 

 and the early part of June. The second brood of 

 caterpillars are most abundant in July a?id early 

 August, and produce moths in late July, August, pJ/^^„£- fatf ^F 'iLVa! 

 and September. Our dates for the moth range Greatly enlarged, 

 from May 5 to June 26 for the first brood, and from July 9 to October 

 8 for the second, the larger numbers occurring near the middle of May 

 and August. 



THE HADENA STALK-BORERS. 



Hadena stipata Morr. 



H. fractilinea Grote. 



H. misera Grote. 



Besides the common stalk-borer of this region treated on page 44, 

 the spindle-worm, on page 85, and the two stalk-borers of the 

 South, on pages 91 and 94, the above three species of Hadena have 

 been observed by Mr. F. M. Webster* causing serious injury to corn 

 by burrowing lengthwise in the heart of the plant. 



Unlike the common glassy cutworms, which belong to the same genus, 

 these caterpillars are striped with brownish, and are rather slender anet 

 active, resembling the common stalk-borer. There is no indication, 

 however, of the abrupt obliteration of the lateral stripes on the middle 

 part of the body, as in the latter species. H. stipata has four stripes, 

 one on each side and two near together on the back. 



In various parts of central Indiana //. stipata killed young corn in 

 1889 on clover, timothy, and prairie sod, but not on blue-grass. Both 

 low and high lands suffered severely, and some fields were totally ruined, 

 the injury continuing until it was too late to replant. The larva gnaw 

 mto the stem under ground and bore upward through the heart, ulti- 

 mately killing the plant. They sometiines go from plant to plant, And 

 may thus destroy an entire hill. 



*Bull. 22, U. S. Dept. Agr., Div. Ent., p. 47; "Insect Life," Vol. IL, pp. 134, 383- Bull 51 

 Ohio Agr. Exper. Station, p. 1,39. 



