BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 205 



1555. RILEY, C. V. Locust injury next spring. The territory in Mis- 



souri that will probably suffer therefrom. <Colman's Rural 

 World, 20 December, 1876. S.-b.' No. 14, pp. 5-6. Reprint : 

 industrialist [Manhattan, Kans.], 17 February, 1877, v. 2, 

 No. 44, p. 4. S.-b. No. 14, p. 49. 



Prediction of ravages of Calopienus spretus to occur in spring of 1877 in Mis- 

 souri. 



1556. [RiLEY, C. V.J Amputating insects. <N. Y. Semi-weekly Tri- 



bune, 29 December, 1876, 2 figs. S.-b. No. 14, pp. 8-9. 



Description of the work of Elaphidion putator [= viUosum'] and Oncidcres cin- 

 gulata; habits of both; figures of larva, pupa, and imago of the latter; 

 similarity in habits of Oncideres amputator and E. putator to those of 0. 

 dngulata. 



1557. [RiLEY, C. V., et al.] The Rocky Mountain locust or grasshopper, 



being the report of proceedings of a conference of the Gov- 

 ernors of several Western States and Territories, together 

 with several other gentlemen, held at Omaha, Nebr., on the 

 25th and 26th days of October, 1876, to consider the locust 

 problem; also a summary of the best means now known for 

 counteracting the evil. <St. Louis, 1876, 8, pp. 3+58, 8 figs. 

 See : <N. Y. Tribune, 1876. S.-b. No. 10, p. 223. 

 Preface, proceedings, pp. 1-36. Practical considerations and suggestions for 

 the suppression of Caloptenus spretus; description, oviposition, transforma- 

 tions, and habits of the same; its enemies and parasites; means against 

 it; description of Anthontyia calopteni n. sp. [=aw<7sf(/rows]. Figures. 

 Prepared by J. S. Pillsbury, P. Pusey, and C. V. Riley. 



1558. RILEY, C. Y. Potato pests. Being an illustrated account of the 



Colorado potato-beetle and the other insect foes of the potato 

 in North America, with suggestions for their repression and 

 methods for their destruction. <New York: Orange Judd 

 Company [187(5], pp. 108,49 figs., map. Review: <Cultivator 

 and Country Geutl., 11 January, 1877, v. 42, p. 25. Reply to 

 review : <1 bid., 1 February, 1877, v. 42, p. 78. S.-b. No. 14, 

 pp. 56-57, 



TABLE OF CONTENTS. 



PREFACE 7 



INTRODUCTION 9 



THE COLORADO POTATO-BEETLE, DorypTiora, W-lineata 11 



Its past history 11 



Prediction that it would reach the Atlantic, 12 Its march across 

 the country, 13 It reaches the Atlantic, 14 Its swarming in 

 large cities, 1C Its occurrence out at sea, 17. 



The insect's native home 17 



When it first attacked the potato, 18. 



Rate at which it traveled 21 



How it traveled 21 



Mostly in the beetle state, 21 Assisted by man, 21 Tendency to 



migrate in swarms, 23. 

 It spreads, but does not travel in the sense of leaving one district for 



another 23 



