ENTOMOLOGY. 809 



Insects injurious to currants and gooseberries, 0. V. PlPEE and 

 R. W. DoANE ( Washington Sta. Bui. 36, pp. 16, Jigs. 8). — The authors 

 state that there arc at least 3 different species of insect in the State 

 which attack and destroy the fruit of the currant and gooseberry. 

 These insects are the dark currant fly {Rhagoletis ribicola), yellow 

 currant fly {Epochra canadensis), and gooseberry frail worm (DaJcruma 

 convolutella). The insects are fully described and their habits and life 

 histories given and various remedies suggested for their prevention. 

 Illustrated notes and life histories are also given of the following 

 insects which are injurious to the foliage of the currant and gooseberry: 

 Native currant sawlly (Gymnonyehus appendiculatus), pepper-and-salt 

 currant moth {Eubyia cognitaria), currant aphis {Myzus ribis), currant 

 borer (Sesia tipuliformis), and western pulvinaria {Pulvinaria innume- 

 rabili.s occiden ta lis). 



Notes on horntails and their host plants, W. Leisewitz (Ztsclvr. 

 Forst Naturw., 7 {1898), Xo. 12, pp. 439-442).— The author enumerates 

 a number of species of horn i ails, arranging them according to the 

 woody plants upon which they live. The species are as follows: 



Spruce— Sirex gigas, S. spectrum, S. juvencus, S. noctilio, Xiphydria camelus; pine — 

 Sirex gigas, S. juvencus, S. noctilio, Xiphydria camelus ; Abies — Sirex gigas, S. spectrum, 

 S. juvenvits, Xiphydria camelus; larch — Sirex gigas; oak — Sirexmagus, Xiphydria longi- 

 collis, Cephus cynosbati ; beech — Cephus cynosbati, Sirexmagus, S.fuscicornis; maple — 

 Sirex magus, Xiphydria longicollis; elm — Xiphydria sp., X. dromedarius ; birch — Sirex 

 magus, S. fuscicornis, Xiphydria longicollis, X. camelus; alder — Xiphydria camelus, 

 Oryssus vespertilio; poplar — Sirex fuscicornis, Xiphydria dromedarius; willow — Xiphy- 

 dria dromedarius, Cephus cynosbati; pear — Sirex magus, Xiphydria longicollis, Cephus 

 abdominalis, C. compress us; Ruhus — Cephus fumipennis ; and Spiraea — Cephus major. 



A spraying mixture for cauliflower and cabbage worms, F. A. 

 Sireine {New Tori- State Sta. Bui. 144, pp. 26-47, pis. 6). — The use of a 

 resin-lime mixture for the prevention of injury caused by the imported 

 cabbage worm {Fieris rapcf) and the cabbage looper {Plusia brassicw) 

 is recommended.- The formula for the insecticide is pulverized resin 5 

 lbs., concentrated lye 1 lb., fish oil 1 pt., and water 5 gal. This is to be 

 made into a stock solution by placing the oil, resin, and 1 gal. of hot 

 water in an iron kettle and heating it until the resin is softened, after 

 which the concentrated lye is carefully added and the mixture thor- 

 oughly stirred. Four more gallons of hot water are added and the 

 whole mass boiled until the mixture will unite with cold water, making 

 a clear, amber colored liquid. When through boiling this mixture 

 should make 5 gal. of the stock solution. When used the insecticide is 

 prepared by combining 1 gal. of the stock solution, 10 gal. of water, 3 

 gal. milk of lime, and £ lb. Paris green. The water, resin, and milk of 

 lime are combined, after which the Paris green is added. If the milk 

 of lime should be added to the undiluted resin mixture, a heavy pre- 

 cipitate would be formed, which not only settles rapidly but interferes 

 with spraying, as it clogs the nozzles. 



This resin-lime mixture with Paris green was first tested in L895, on 

 elm trees for the elm-leaf beetle. Later it was used to spray rutabagas 



