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SCHOOL ENTOMOLOGY 



receives its name from a province in France where it 

 wrought havoc in 1760. It occurs throughout the South 

 and as far north as Pennsylvania and Ohio. Wheat, corn, 

 oats, rye, barley, sorghum-seed, and even cow-peas are 

 injured. The moths quite closely resemble clothes moths 

 (page 220), expanding nearly three-fourths of an inch, 

 being of a yellowish-buff color, marked with black, and 

 with the same broad fringe on the hind wings. The moths 



FIG. 163. The Angoumois grain-moth (Sitotroga cerealella). (After 

 Chittenden, U. S. Dept. Agr.) 



a, eggs; b, larva at work; c, larva, side view; d, pupa; e, moth; /, same, side 

 view. 



emerge from infested grain in late May or June, when 

 they fly to the growing grain, on which each female lays 

 from 60 to 90 eggs. The young caterpillars bore into the 

 kernels, where they feed and become full grown in about 

 three weeks. Full grown caterpillars are about one-fifth 

 of an inch long, white in color, with a yellowish head, and 

 have four pairs of soft prolegs on the middle of the abdomen. 

 The second brood of moths appears about harvest time. 

 They lay their eggs in July, depositing them on the wheat in 

 the stack. The caterpillars hatching from these eggs may 



