218 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



1620. RILEY, C. V. [Ravages of Termes flavipes.] <Trans. Acad. Sci. 



St. Louis, December, 1877, v. 3, p. 269 Proc. 

 Note to comintmication of R. D. Grant on some ravages of Termes flavipes. 



1621. KiLEY,C.Y. On the oviposition of MaperdabivittataSay. <Trans. 



Acad. Sci. St. Louis, December, 1877, v. 3, pp. 269-270 Proc. 

 See : <Colman's Rural World, 28 November, 1877. S.-b. No. 20, 

 p. 6. 

 Description of egg and manner of oviposition of Saperda biviitata [ = Candida], 



1622. RILEY, C. V. On migratory butterflies. <Trans. Acad. Sci. St. 



Louis, December, 1877, v. 3, pp. 273-274 Proc. See : <Valley 

 Naturalist, January, 1878, v. 1, p. 2. 



Phenomena and causes of the migrations of butterflies, especially of Danaia 

 archippus. 



1623. RILEY, C. V. [Phylloxera and grape-rot.] <Trans. Acad. Sci. 



St. Louis, December, 1877, v. 3, p. 275 Proc. See : <Colmau's 

 Rural World, 28 November, 1877. S.-b. No. 14, p. 268. 



Disagreement with views of A. J. Cook as to there being any connection be- 

 tween the work of Phylloxera vastatrix and the ordinary grape-rot. 



1624. RILEY, C. V. The periodical Cicada. <Western Farmer's Al- 



manac for 1878, 1877, p. 48. S.-b. No. 14, p. 138. Reprint: 

 <Colman's Rural World, 28 November, 1877. S.-b. No. 14, pp. 

 265-266. 



Regular periodicity of the appearance of Cicada [=Tibicen'] septendecim and 

 * C. [=2".] tredecim; popular description and natural history of the same; 

 chronology of twenty-two different broods, geographically classified. 



1625. RILEY, C. V. The locust plague in the United States : being 



more particularly a treatise on the Rocky Mountain locust, or 

 so-called grasshopper, as it occurs east of the Rocky Mount- 

 ains, with practical recommendations for its destruction. <Chi- 

 cago : Rand, McNally & Co., 1877, 236 pp., 3 pi., 42 figs. Ex- 

 tract: <Manitoba Standard, 18 77. S.-b. No. 14, pp. 97-98. No- 

 tice: <Cultivator and Country Gentl., 30 August, 1877, v. 42, 

 p. 557. <Gardener's Mo. and Hortic., October, 1877, v. 19, p. 

 317. <Ent. Mo. Mag., October, 1877, v. 14, p. 118, 



TABLE OF CONTENTS. 



PREFACE 7 



INTRODUCTION 9 



CHAPTER I : 

 Characters of the species 13 



Classificatory position of the Rocky Mountain locust, 13 How it 

 differs from other species, 14 Easily confounded with the com- 

 mon red-legged locust, 14 Detailed descriptions of both, 15 

 Its still closer resemblance to the Atlantic migratory locust, 22 

 Characters of this last, 22 Species vs. variety and race, 23 Com- 

 parisons of these three closely-allied species in their early stages, 

 26 A green variety of the Rocky Mountain locust not infrequent, 

 27 Purely an American insect, 28. 



