968 EXPERIMENT STATION RECORD. 



Tinea pellionella, and Tineola bmelliella. Biological and economic notes are given on 

 Agrotis segetum, Hadena secalis, H. basUinea, pea weevil, cabbage-root maggot, Camda 

 nebulosa, codling moth, Cecidomyia pyricola, C. tritici, and other species of less 

 importance. 



Report on injurious insects in Finland for the year 1900, E. Keuter {Landbr. 

 Styr. Meddel. \_Helsmgfors], 1901, No. So, pp. 41)- — In this report especial attention 

 is given to a discussion of the habits and life history of Charscas gruminis. This 

 insect proved especially injurious during 1900 and a circular letter of inquiry was sent 

 to various parts of Finland for the purpose of obtaining a better idea of its distribution 

 and the extent of its injuries. Notes are also given on a number of insects which 

 caused the so-called silver top condition of grasses. A brief report is also made on 

 Sitones lineatus, Meligeihes xneus, cabbage weevil, cabbage butterfly, cabbage-root 

 maggot, codling moth, Argyresthia conjugella, gypsy moth, and other miscellaneous 

 insects. 



Report of the comniittee on diseases of cane, A. Koebele {Hawaiian Planters' 

 Mo., 21 {1902), No. l,pp. 20-24). — Notes on the habits and life history of a species of 

 leaf hopper and Sphenophorus obscurus as injurious to sugar cane. 



The Hessian fly, H. Garmax {Kentucky Sta. Bid. 96, pp. 193-198). — Experimental 

 plats of wheat were planted at the station for the purpose of determining the length 

 of time during which the female fly lays eggs. It was found that ordinarily the 

 insect lives but a short time after depositing its eggs, but when the weather was not 

 unusually severe some belated flies escaped the effects of early frosts and appeared 

 later during warm days. The author's observations indicate that in order to secure 

 complete protection against injury from this insect it is not safe to plant wheat earlier 

 than October 3, and in the southern part of the State wheat should not be planted 

 before the middle of October or perhaps the first of November. Brief descrijitions 

 are given of the insect in its various stages. 



Two Noctuidae injurious to cereals, S. Lampa {Ent. Tidskr., 22 {1901), No. 2-3, 

 jip. 129-136, pi. 1). — The author gives notes on the habits, life history, and means of 

 combating Hadena tritici and H. secalis. Notes are given on the food plants of these 

 species and extensive bibliographical references are made. 



Colorado potato beetle in Europe, S. Lampa {Ent. Tidskr., 22 {1901), No. 2-3, 

 pp. 170-174). — Brief notes are given on the recent importation of the Colorado potato 

 beetle into England, and attention is again called to the possibility of the spread of 

 this insect in other parts of Europe. A number of weeds are found in all parts of 

 continental Europe upon which the insect might feed. 



Some orchard pests, J. M. Stedmax {Missoun State Bd. Ayr. Mo. Bid., 1 {1902), 

 No. 11, pp. 22-24). — Brief notes on the habits, life history, and means of combating 

 the plum curculio and cankerworm. 



A monograph of the Coccidae of the British Isles, R. Newstead {London: Ray 

 Society, 1901, vol. 1, pp. 220, pis. 39, figs. 20). — In this volume the author gives a general 

 account of the life history and habits, migration, distribution, acclimatization, and 

 natural enemies of the Coccidae. According to observations in England, the blue tit- 

 mouse {Parus cxrideus) feeds extensively upon a numl>er of species of scale insects. 

 Other birds are al5o reported as more or less effective enemies of theCoccidse. Notes 

 are given on the parasitic and fungus enemies of Coccidfe, on methods of collecting 

 and preserving these insects, and on the approved artificial remedial and preventive 

 measures. The greater portion of the volume is occupied with a description of the 

 various species of the subfamily Diaspinte. The plates illustrating the volume are 

 for the most part original and of excellent character. 



San Jose scale investigations. III, V. H. Lowe and P. J. Parrott (New York 

 State Sta. Bid. 202, jjp. 167-214, pis. 2, fig. 1). — Spraying experiments with ci-ude petro- 

 leum and other insecticides (pp. 171-188). — The crude petroleum used in these exi^eri- 

 ments had a specific gravity of 44°; the emulsion was perfect and did not separate 



