116 



HoLLOWAY (T. E.)- Moving Lights versus Stationary Lights in Photo- 

 tropism Experiments. — Jl. Econ. Entom., Concord, N.H., ix, no. 6, 

 December 1916, pp. 570-571. 



It is considered probable that moths are more readily attracted by a 

 moving light than by a stationary one. While stationary lights of 

 various colours and intensities have failed to attract them, large 

 numbers of Dialraea saccharalis and Laphygma frvgiperda, especially 

 the gravid females, have been found to come to a light carried round 

 the edge of a sugar plantation on a truck, on which was mounted a 

 gasoline engine producing a suction of air powerful enough to kill or 

 maim all insects attracted within its range. The experiments are 

 however inconclusive, as the noise and disturbance caused by the 

 passage of the engine may have induced more insects to take wing than 

 a light only would have done. 



Chittenden (F. H.). On the Distribution of the Imported Cabbage and 

 Onion Maggots. — Jl. Econ. Entom,, Concord, N.H., ix, no. 6, 

 December 1916, p. 571. 



The true cabbage maggot, CJiortophila {Pegomyia) brassicae, Bch. , 

 and the onion maggot, Hylemyia antiqua, Mg. (P. cepetorum, Meade), 

 have erroneously been reported by many entomologists from Texas 

 and other GuL£ States, whereas, in the author's opinion, these species 

 do not occur, permanently at least, south of New Jersey. From that 

 point southward they are replaced by the seed-corn maggot, 

 CJiortophila (Pegomyia) fusciceps, Zett. 



Wilson (T.). The Cottony Maple-scale {Pulvinariainnumerabilis). — 

 Proc. B. C. Entom. Soc, Victoria, 1916, Entom. Series no. 9, 

 August 1916, pp. 57-59. [Received 3rd January 1917.] 



This scale is increasing rapidly in British Columbia and has been 

 found on a great variety of food-plants, such as thorns, poplars, grape- 

 vines, willows, gooseberries, and the maples, Acer glabra and Acer 

 neguiido. It is first noticed after the females have attained their full 

 growth in May or June and have excreted a quantity of a cotton-like 

 substance. The young scales mainly attach themselves to the under- 

 side of the leaves, the first moult taking place about a month after the 

 yoimg leave their mother. A lime and sulphur spray at winter 

 strength, with the addition of caustic soda, should be used after the 

 leaves have fallen and will thoroughly dissolve the scales. They may 

 also be checked by a strong water spray from a hose. 



Treherne (R. C). The Pea-weevil in British Columbia. — Proc. B. C. 

 Entom. Soc, Victoria, 1916, Entom. Series no. 9. August 1916, 

 pp. 59-60. [Received 3rd January 1917.] 



A warning is given to growers in British Colmnbia against the 

 importation of Bruchus pisorum, L., in infested seed-peas from the 

 United States or elsewhere, as this insect has been found in con- 

 ^signments to the Province, which is at present free from it. 



