BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 131 



1127. KILEY, C. V. Continued. 



flora not so highly improved and developed as in Europe, 12 

 Australian fauna still more " old-fashioned " than America, 12 

 The parasites of injurious insects are not imported with the in- 

 sects themselves, 13 Government aid should be solicited to ex- 

 terminate recently imported injurious insects, 13 But little 

 attention given so far by our Government to assist the study of 

 economic entomology, 14 Danger of introducing the oyster-shell 

 bark-louse into Missouri, 15 Immunity of the Pacific States 

 from many of our fruit insects, 15. 

 THE CHINCH-BUG,* Blissus leucopterus 15 



It is the most injurious of all insects infesting grain, 16 Its past 

 history, 17; it was known in South Carolina in Revolutionary 

 times, 17; it was injurious in Missouri as early as 1854, 17; no- 

 ticed in Illinois in 1840, 17 ; it was very injurious in Missouri in 

 1863, 17; but hardly noticed in 1869, 17 Probable reason why it 

 was not noticed in Missouri in former times, 18 Why it is not 

 injurious in Massachusetts and New York, 18 Its natural his- 

 tory, 18 The pupa state in the different insect orders, 18 Time 

 required for different insects to complete the cycle of develop- 

 ment, 19 The chinch-bug is two-brooded in Mi'ssouri, 19 Its 

 winter quarters, 20 Its rapid multiplication, 20 Dr. Shimer's 

 account of its nuptial flights, 21 It, deposits the eggs under- 

 ground on the roots of the plant, 21 The egg, 22 Dimorphous 

 forms of the chinch-bug, 22 Its destructive powers, 22 Account 

 of its appearance in immense numbers, 23 Heading off the 

 marching bugs by a barrier of pine boards, 23 Heavy rains de- 

 structive to the chinch-bug, 24 Moisture injurious to the egg, 

 24 The chinch-bug is always worse in a dry season than in a wet 

 One, 24 Dr. Shimer's theory on epidemic disease affecting the 

 chinch-bug, 25 Cannibal foes of the chinch-bug, 25; several 

 species of ladybirds, 25; the weeping lacewing, 26; how the 

 lace wing larva seizes its prey, 26; the insidious flo\rer-bug, 27 ; 

 the common quail, 28 Amount of damage done by the chinch- 

 bug, 28 Remedies, 28 Burning in winter the old corn-stalks 

 and other dead stuff on and near the fields, 29 Mixing winter 

 rye among spring wheat, 29 Intercepting the marching bugs 

 by fence-boards, 29 Sowing gas-lime, 30 Other remedies, 30 

 Bogus chinch-bugs, 31 Several species of Heteroptera con- 

 founded with the true chinch-bug, 31 The smell emitted by the 

 half-winged bugs, 32 The insidious flower-bug. 32 The ash- 

 gray leaf-bug and its injury to grape-vines, 33 The flea-like 

 negro-bug, 33; injury caused by it to raspberry, strawberry, and 

 garden flowers, 34 Two other species of negro-bug, 35 Reca- 

 pitulation of the natural history of the chinch-bug, 36. 

 THE ARMY-WORM, Leucania unipitncta 37 



Four distinct caterpillars designated as army-worms in this coun- 

 try, 37. 

 The tent-caterpillar of the forest, Clisiocampa disstria 37 



It can not properly be called an army-worm, 37. 

 The cotton-worm, Aletia xylina 37 



Historical data on the injury caused by it, 38 The egg, 38 The 

 worm and its habits, 39 Mr. Lyman's incorrect account of its 

 development, 3'J The moth and its habits, 40 Its hibernation, 

 40 Remedies, 41. 



* Extract in <Rept. State Board Agric., Kansas for 1873-'74, pp. 129-131. 



