516 REPORT OF NATIONAL MUSEUM, 1892. 



Charles V. Riley. Reports on the damage hy Destructive Locusts during the 

 season of 1891. Made under the direction of the Entomologist. 



JJ. S. Department of Agriculture, Division of Entomology, Bulletin No. 27, Washington, 

 Government Printing Office, January, 1892. 



Contains the following: Letter of transmittal, by C. V. Riley, p. 5; Introduction, by C. "V. 

 Riley, p. 7; report on Destructive Locusts, by Lawrence Bruner (including reports of C. B. 

 Waldron, H. E. Stockbridge, and Otto Lugger, the latter report being a reprint from Bulletin 

 No. 17, Minnesota Agricultural Experiment Station), pp. 9-33; report on the Locust Invasion 

 of California in 1891, by D. W. Coquillet, pp. 34-57; report of a trip to Kansas to investigate 

 reported damages from grasshoppers, by Herbert Osborn (reprinted from Insect Life, IV, p. 

 49), pp. 58-04. 

 Charles V. Riley. Applied Entomology in the United States. 



American Agriculturist, Li, January 1892, p. 38. 



Importance assumed by economic entomology in the United States, and outline ol' its his- 

 tory; enumeration of injurious insects of national importance that have of late years been 

 thoroughly studied; brief review of the more recently discovered insecticides and insecticide 

 appliances ; use of contagious disease germs in entomology ; outlook of the, science in the future. 

 Charles V. Riley. Flowers and insects. 



Daily Eagle, Brooklyn, N. T„ February 3, 1892. 



Full editorial abstract of a lecture given by C. V. Riley before the Brooklyn Institute at 

 Brooklyn, N. Y., February 2, 1892. Fertilization of dowering plants by insects, and mutual 

 adaptation in the structure of flowers and insects; fertilization of Yucca by Pronuba insectiv- 

 orous plants; generalizations and conclusions. 

 Charles V. Riley. The Plum Curculio, an American insect. 



California Orchard and Farm, March, 1892. 



Evidence to prove that Gonotrachelus nenuphar is a native of North America, and that its 

 reported occurrence in Europe and the assertion of its European origin are unfounded; enum- 

 eration of European Curculionidce which infest stone fruit and which are liable to be mis- 

 taken for the Plum Curculio. 



Charles V. Riley. Leaf-cutting ants. 



Scientific American, April 2, 1892. 



In reply to inquiry from a correspondent in Texas relating to a remedy for the leaf-cutting 

 ant (Oecodoma fervens). Description of the nest of the ants and various means for extermi- 

 nating the inhabitants; experience with cyanide of potassium as a remedy. 

 Charles V. Riley. The larger digger wasp. 



Insect Life, IV, Nos. 7 and 8, April, 1892, pp. 248-252, Figs. 32-38. 



Sphecius speciosus as an enemy of Cicada pruinosa , its mode of attacking and paralyzing the 

 Cicada ; remarkable effect of the sting of fossorial wasps ; rapid development of the larva ; spin- 

 ning of the cocoon; curious pores of the cocoon : hibernation and pupation. Original figures 

 of speciosus in all stages, also figures of its burrows, mode of carrying a Cicada, mode of feed- 

 ing of the larva, and the spinning of the cocoon. 



Charles V. Riley. Speech of Prof. ('. V. Kiley. 



Reprinted from the Third Report on the Missouri Botanical Garden, for 1891, May, 1892, pp. 

 50-53. 



Speech delivered at the second banquet of the trustees of the Missouri Botanical Garden, 

 and eulogizing the late Mr. Henry Shaw, and tin- work which be did for St. Louis, Mo. Con- 

 nection of entomology with the garden. Need of a national botanic garden. 

 Charles V. Riley. The Yucca Moth and Yucca Pollination. 



Third Annual Report of the Missouri Botanical Garden, 1891, St. Louis, Mo., May, 1892, pp. 

 99-158, pis. xxxiv-xliii. Also separate author's copies issued May 28, 1892. 



Part i of the paper deals with the pollination of Yucca by Pronuba and contains the follow- 

 ing chapters: Introductory: fertilization of plants generally; connection of Yucca and. Pro- 

 nuba; structural characteristics of Pronuba; the acts of pollination and oviposition; devel- 

 opment of theegg and larva; transformations of Pronuba; effect of puncture on the fruit; ef- 

 fect of fertilization on the stalk; dates of the flowering of Yuccas and appearance of the 

 moth: Pronuba the only insect pollinizer; general considerations; the bogus Yucca moth. 

 Part if is devoted to descriptive details and contains the following headings: Internal struct- 

 ure of Pronuba yuccasella with reference to the reproductive organs ; the ovipositor; the 

 species of Pronuba and generic characters of Pronuba; the species of Roddoxus. The 

 following species are described as new: Promtba synthetica, I'rodoxus pulvcrulentus, Pro- 

 doxus y -inversus, Prodoxus reticulatus, Prodoxus coloardenses, Prodoxus sordidus. The plates 

 contain many original figures illustrating anatomical or structural details of Yuccas and 

 Yucca Moths. 



