194 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



1482. BILEY, C. V. Eighth annual report on the noxious, beneficial, 

 and other insects of the State of Missouri, made to the State 

 Board of Agriculture, pursuant to an appropriation for this 

 purpose from the legislature of the State. <llth Ann. Kept. 

 State Board of Agric. for 1875, May, 3876, pp. 185+4, 55 figs. 

 Separate: <Jefferson City, Mo., May, 1876, pp. 185+4, 55 figs. 



PREFACE Ill 



TABLE OF CONTENTS V 



NOXIOUS INSECTS. 



THE COLORADO POTATO-BEETLE, Doryphora 10-lineata 1 



Damage during the year, 1 Abundant in Atlantic States, 1 

 Swarming on Coney Island, 2 Injuring egg-plant, 2 Its scien- 

 tific name, 2 Additional enemies, 3 Eaten by the crow, 3 Rem- 

 edies, 3 Cost of applying Paris green, 3 Preparing the poison, 

 3 Use of straw as a protection, 4 Machine for sprinkling, 4 

 Machine for brushing off the insects, 4 Experience with Paris 

 green, 5 Experiments of Profs. R. C. Kedzie and Wm. McMurtrie 

 show that it may be used with safety, 6 Trial of other remedies, 

 6 The insect's native home, 8 The theory that it came from the 

 Rocky Mountain region essentially correct, 10 Poisonous quali- 

 ties of the insect discussed, 10. 

 CANKER-WORMS, Paleacrita vernata ; Anisopteryx pomelaria 12 



Two species long confounded, 12 They differ generically; new 

 genus (Paleacrita) proposed for one, 13 The two compared in 

 all stages, 13, 17 Characters of the genus Paleacrita, 17 Distin- 

 guished as spring and fall canker-worms, 17 Practical consid- 

 erations from their differences of habit, 18 Stunting the larvae 

 does not produce male moths, 19 Traps recommended, 20, 21. 

 THE ARMY WORM, Leucania unipuncta 22 



Its generic name, 22 The term "army- worm" applied to various 

 insects, 23 Past history of the army-worm, 24 Known since 

 1854 in Missouri, 27 It I olio wed 'the 1871 conflagration around 

 Peshtigo, Wis., 28 Its history in 1875; very general all over the 

 country, 28, 29 Its history in Missouri in 1875, 30 Sexual dif- 

 ferences, 30 Sexual organs illustrated, 30, 32 Natural history 

 of the species, 32 Illustrated in all states, 32, 33 It occurs in 

 Europe, Asia, New Zealand, and Australia, 34 Description of 

 the egg, 34 Where the eggs are laid, 34 Conclusions drawn 

 from structure, 36, 37 When the eggs are laid, 40 In what state 

 does the insect hibernate ?, 43 Habits of the worm, 45 Why 

 it escapes detection when young, 45 Why it travels in armies, 

 46 Time of its appearance, 46 Are there one or two broods?, 

 47 The fall army-worm, 48 How distinguished from the real 

 army- worm, 48 Plants preferred by the army- worm, 49 Its sud- 

 den appearance and disappearance, 50 It swarms during wet pre- 

 ceded by very dry seasons, 51 Its natural enemies, illustrated, 

 52 Remedies, 54 Philosophy of winter burning, 54, 55 Preven- 

 . tiou, 55 Summary of the leading facts concerning it, 56. 

 THE ROCKY MOUNTAIN LOCUST, Caloptenus spretus 57 



Previous experience in spring of 1867, 57 Predictions verified, 58 

 General outlook in spring of 1875, 60 Extent of country ravaged, 

 60 The outlook in Missouri, 61 Country ravaged often as bare 

 as in midwinter, 61 Account by counties, 62 Atchison County, 



