704 REPORT OF NATIONAL MUSEUM, 1890. 



Charles V. Riley. Insecticides and means of applying them to shade and forest trees. 

 Fifth Report of the XT. S. Entomological Commission, pp. 31-47. 



Author's Extras. Full report not ye* published. The first part gives a summary of the in- 

 secticides available for the protection of forest and shade trees from the attacks of leaf- 

 eating insects ; the arsenical poisons, kerosene emulsions, and hydrocyanic acid gas are 

 especially treated of. The second part enumerates and describes the apparatus for the 

 application of insecticides in dry or liquid form and more especially the various nozzles 

 and pumps for spraying, many of which are figured. 

 Charles V. Riley. Some iusect pests of the household. The true clothes moths. 

 Insect Life, Nos. 7, 8, February, 1890, pp. 211-215. 



Characterization of the three species of clothes moths common in the United States, and their 

 mode of work ; description of Hypercemus tinece, a parasite of Tineola pellionella,- the ques- 

 tion of remedies discussed. 

 Charles V. Riley. Improved methods of using hydrocyanic acid gas. 

 California Fruit Groiver, VI, February 18, 1890, p. 100. 



Mr. D. TV". Coquillett's latest improvement in the preparation and application of hydrocyanic 

 acid gas as a remedy for scale insects in California. 

 Charles V. Riley. [Opinion of the Gypsy Moth]. 

 Boston Globe, February 17, 1890. 



Publication of interview with a reporter regarding the danger resulting from the spread of 

 the imported gypsy moth, and the best means of exterminating it. 

 Chahles V. Riley. The six-spotted mite of the orange (Tetranychus 6-maculatus, 

 n. sp.). 



Insect Life, II, Nos. 7, 8, February, 1890, pp. 225, 226 ; fig. 44. 



Technical description, with figures, of Tetranychus §-maculo,tus, a hitherto undescribed mite 

 injurious to the orange tree in Florida. 

 Charles V. Riley. Platypsyllus — egg and ultimate Larva — Dr. Horn's reclamation. 

 Entomologica Americana, VI, No. 2, February, 1890, pp. 27-30. One figure. 

 (Reprinted in part in Insect Life, II, Nos. 7, 8, February, 1890, pp. 244-24G, fig. 50.) 

 The egg una -pa-pa, of Platypsyllus were not previously characterized. Describes the eggs from 

 the oviduct and describes and figures a singular form of larva, having a strong Mallopha- 

 gan appearance, giving reason for believing it to be the ultimate larva form of Platypsyl- 

 lus. Replies to a reclamation by Dr. G. H. Horn on a question of priority. 

 Charles V. Riley. An Australian Hymenopterous Parasite of the Fluted Scale. 

 Insect Life, II, Nos. 7, 8, February, 1890, pp. 248, 249, fig. 54. 



Describes Ojjhelosia, nov. gen. of Chalcididce, and Ophelosia crawfordi,n. sp. from Adelaide, the 

 now species being parasitic on Icerya 2>urchasi. 

 Charles V. Riley. The Entomological Mission to Australia. 



Pacific Rural Press, xxxix, February 8, 1890, p. 140, and March 22, 1890, p. 310. 

 Replies to Mr. Frank McCoppin's articles relative to the history of the mission to Australia, 

 undertaken for the purpose of introducing into California parasites and enemies of Icerya 

 purchasi. 

 Charles V. Riley. The Improved Gas Treatment of Scale Insects. 

 Pacific Rural Press, xxxix, March 8, 1890, p. 261. 



Records the recent improvement in the preparation and application of hydrocyanic gas as a 

 remedy for scale insects in California. 

 Charles V. Riley. Some Insect Pests of the Household, iv. Cockroaches. 

 Insect Life, II, No. 9, March, 1890, pp. 266-269, fig. 57. 

 (Reprinted substantially from Oood Housekeeping , June 8, 1889.) 



Characteristics of the three species most abundant in houses, Periplaneta americana, 

 P. orientalis, and Phyllodromica germanica; note on food habits and remedies. 

 Charles V. Riley. The Rose Chafer (Macrofactylus siibspinosus Fahr.). 

 Insect Life, II, No. 10, April, 1890, pp. 295-302 ; fig. 61. 



Past history; natural history ; geographical distribution; food plants and ravages ; natural 

 checks; remedies. 

 Charles V. Riley. Microgasters Affecting Rhopalocera. 



Proceedings of the Entomological Society of Washington, I, No. 4, 1890, p. 205. 

 Dwells upon the difficulties in the specific distinction in the genus Microgaster and points out 

 certain structural characters that could be used for the purpose. 

 Charles V. Riley. Ovipositiou in Diptera. 



Proceedings of the Entomological Society of Washington, I, No. 4, 1890, p. 263. 

 Enumerates instances where in Diptera the ovipositor is modified and fitted for puncturing. 

 Charles V. Riley. Note on the Genus Lestophonus. 



Proceedings of the Entomological Society of Washington, I, No. 4, 1890, pp. 263, 264. 

 Short note on the specific distinctness of Lestophonus Iceryce and L. monophlosbi. 



