BIBLIOGRAPHY. 583 



Robert Ridgway— Continued. 



The new species are as follows: Amphispiza ferrariperezi ; Pipilo submaculatus ; P. com- 

 plexus ; Anas diazi, and Philortyx personatus. Micrathene graysoni Ridgway, from Socorro 

 I-land, is also described, and a synoptical table of the North American and Mexican species 

 of the restricted genus Anas is given. 

 Charles V. Riley. Report on the Department of Insects in the U. S. National 

 Museum, 1884. 



Report of Smithsonian Institution, 1884, (1886) II, pp. 185-188. 



Charles V. Riley. The present status and future prospects of Silk Culture in the 

 United States. (Abstract.) 



Proc. Am. Assn. Adv. Sci., xxxrv, Ann Arbor meeting, Aug. 1885, p. 516. (Author's extras 

 issued July 1, 1886.) 



The author concludes that tbe adaptability of the United States to silk culture is proven; 

 that the profits are very small ; that the encouragement given by Congress has been pro- 

 ductive of good, and has intensified interest in the subject; but once withdrawn a reaction 

 would set in ; that no permanent advantage to American silk-growers can be secured unless 

 by a protective tariff which will recognize that the so-called "raw silk" is a manufactured 

 article and entitled to protection. 



Charles V. Riley. The probabilities of Locust or " Grasshopper" injury in the near 

 future, and a new method of counteracting their injury. (Abstract.) 



Proc. Am. Assn. Adv. Sci., xxxiv, pp. 519, 520, Ann Arbor meeting, 1885. (Author's extras 

 issued July, 1886.) 



Shows that there is a certain periodicity in locust visitations ; analyzes the indications for 

 1886, and concludes that there is some danger of injury for that year, though adverse weather 

 may yet modify or avert the danger. The new remedy, somewhat extensively used on the 

 Pacific coast recently, is a mixture of bran, sugar, arsenic v and water, which is placed as a 

 bait throughout the infested localities. 



Charles V. Riley. Notes on Feniseca Tarquinius Fabr. 



Canadian Entomologist, xvin, Oct., 1886, pp. 191-193. 



Comments on Mr. W. H. Edwards's article on this species in Canadian Entomologist, XVIII, 

 141-153, and gives an explanation of the manner in which the carnivorous habits of Feniseca 

 were discovered after long and careful observation, extending from 1880 to 1885. 



Charles V. Riley. The Mulberry Silk- worm ; being a manual of instructions in 

 silk-culture. Sixth revised edition, with illustrations. 



Bull. No. 9, 77. S. Department of Agriculture, Division of Entomology, pp. vii, 65, pi. i and ii, 

 figs. 1-29. 



Letter of submittal. Preface to 2d edition. Preface to»6tb edition, giving a history of past 

 work done, future prospects, advice to beginners, and explanation of techinal terms. Chapter 

 I, Physiology and Life History of the Silk-worm. Chapter II, "Wintering and Hatching the 

 Eggs. Chapter III, Implements that facilitate the raising of Silk. Chapter IV, The Rearing 

 of Silk-worms. Chapter V, Enemies and Diseases of the Silk- worms. Chapter VI, Repro- 

 duction. Chapter VII, Choking the Chrysalis. Chapter VIII, Silk-reeling. Chapter IX, 

 Physical Properties of reeled Silk. Chapter X, Food-plants ; Glossary of terms used ; Ex- 

 planation to Plates ; Index. 



Charles V. Riley. Our Shade Trees and their Insect Defoliators ; being a con- 

 sideration of the four most injurious species which affect the trees of the capital, 

 with means of destroying them. 



Bulletin No. 10, 77. S. Department of Agriculture, Division of Entomology, pp. 1-69, figs. 1-27. 



Treats of the Imported Elm Leaf-beetle (Galeruca xanthomelcena) ; the Bag or Drop "Worm 

 (Thyridopteryx ephemerceformis) ; the "White Marked Tussock-moth (Orgyia leucostigma) ; and 

 the Fall Web-worm (Hyphantria cunea). 



Of each species the full life history is given, details as to structure and other characters, 

 methods of work, amount of damage, trees most or least affected, natural enemies and para- 

 sites, and what means may be employed to check their ravages. Arsenical sprays are still 

 the most effective when it becomes necessary to use insecti ides on a large scale. Effect of 

 winter work in destroying each species ; effect of whitewashing trees, as well as of tree boxes ; 

 injurious as well as beneficial effects of shade trees of "Washington ; prospects for the ensuing 

 year. 



Charles V. Riley. Reports of Experiments with Insecticide Substances chiefly upon 

 Insects affecting garden crops, made under direction of the Entomologist. 

 Bull. No. 11, 77. S. Department of Agriculture, Division of Entomology, pp. 1-34. 



