BIBLIOGRAPHY OF THE U. S. NATIONAL MUSEUM, 1890. 697 



Walter Hough. The preservation of museum specimens from insects and the effects 

 ofdampness. 



Report of the Smithsonian Institution (U. S. National Museum), 1837 (18891, pp. 549-558, 4 



figures. 

 Description of museum insect pests and treatment of specimens by preventives. Solutions for 

 poisoning, and figures illustrating the apparatus used in applying poison. 

 Leland O. Howard. A newly imported elm insect. 

 Insect Life, II, August, 1889, pp. 34-4J, 7 figures. 



Announces the discovery in four localities in the United States of Oossyparia ulmi Geoff. , a 

 European Coccid. Describes and figures the different stages and brings out several new 

 points in the life-history, from observations made by the author at Washington, and by 

 Mr. J. G. Jack at Cambridge. 

 Leland O. Howard. Honors to American Entomology. 

 Insect Life, II, August, 1889, pp. 54, 55. 



Announcement of Professor Riley's election as Hon. Fellow of the Entomological Society of 

 London, with statement of other Americans previously so honored. Also announces that 

 Professor Riley has been created Chevalier of the Legion of Honor. 

 Leland 0. Howard. The hymenopterous parasites of North American butterflies, 

 including a sectiou upon the Microgasters by C. V. Riley. 



The butterflies of the eastern United States and Canada with especial reference to New England, 



by S. H. Scudder, Part XII, October, 1889, pp. 18G9-1911, PI. 88, 89. 

 Comprises introduction, list of hosts and parasites, European hymenopterous parasites of 

 butterflies common to Europe and North America, analytical table of families, analytical 

 table of genera, descriptions of species. Sixty species are described, of which eighteen 

 are new. 

 Leland O. Howard. Annotated catalogue of the insects collected in 1887-1888. 

 Scientific results of explorations of the U. S. Fish Commission steamer Albatross. 

 Proc. U. S. Nat. Mus., XII, December, 1880, pp. 185-216. Extra No. 771. 



Contains lists of hemiptera identified by P. R. Uhler, orthopteraby L. Bruner, dipteraby S. W. 

 Williston.lepidoptera by W.J. Holland, mallophaga by H. Osborn, other insects by M. L. 

 Linell, arachnida by G. Marx, myriapoda by C. H. Bollman 



Leland O. Howard. Association of Economic Entomologists. First annual meet- 

 ing. 



Insect Life, II, December, 1889, pp. 177-184. 



Full report of the meeting held in the rooms of the Department of Insects of the National 

 Museum, November 12, 13, 14, 1889. 



Leland O. Howard. Irrigation and injurious insects. 

 Insect Life, II, January and February, 1890, pp. 215-222. 



A general summary of the influence of irrigation upon the ravages of injurious insects origi- 

 nally drawn up for the information of the Senate Committee on Irrigation. 



Leland O. Howard. Some new parasites of the grain plant louse. 



Insect Life, II, January and February, 1890, pp. 246-248, 3 figures. 



Describes the following new species parasitic on Siphonophora avenos Fabr. : Pachyneuron mi- 

 cans, Megaspihis niger, and Encyrtus websteri. 



Leland O. Howard. A sketch of Professor Riley. 



The Farmer's Magazine ( London), I, Nos. 4, 5, January and February, 1890, pp. 237-241. Portrait. 

 A biographical sketch of C. V. Riley. 



Leland O. Howard. A waspish love-struggle. 



Entomologica Americana, VI, No. 2, February, 1890, p. 33. 



Account of observations by Col. John Bowles on the curious polyandrous coition of a large ves- 

 pid, probably either Sphecius speciosus or Monedula Carolina. 



Leland O. Howard. Two spider-egg parasites. 

 Insect Life, II, March, 1890, pp. 269-271, 2 figures. 



Describes the following: Acoloidesn. g. (Proctotrupidce) saitidis n. sp. from eggs of Saitis pulex, 

 and Bceus americanus n. sp. from undetermined eggs of an Epeirid. 



Leland O. Howard. Note on the hairy eyes of some hymenoptera. 

 Proc. Entom. Soc. Washington, I, No. 4, May 15, 1890, pp. 195, 196. 

 Enumerates the families and genera of hymenoptera in which hairy eyes have been found, 



adds several to the list, and discusses the morphological significance and systematic value 



of these hairs. 



