385 



bore through the pod into the seed beneath, and when f ul y grown they 

 pierce the side of the pod before the peas are npe and descend to the 

 ground. About 17 to 20 days are spent in the pods, and the larvae . 

 mav be found in them from the middle of July to the middle of 

 September. Hibernation occurs in the soil in the cocoon, m which 

 the larval stage is continued until July or August of the following 

 season. 



Experiments made to control this pest by sprays and dusts have not 

 proved successful. Calcium arsenate gave the best results as a spray, 

 but until further experiments disclose some means of making tne 

 spray adhere more readily to the slippery pods, this method cannot 

 be advocated. 



Sanders (G. E.) & Kelsall (A.). The Use of White Arsenic as an 



Insecticide in Bordeaux Mixture.— Proc. Ent. Soc. hova Scotia 



1919, Truro, no. 5, February 1920, pp. 21-33. [Received 9th 



June 1921.] 



The information here given has already been noticed [R.A.E., 



A, viii, 150]. 



Brittain (W H ) Experiments in the Control oJ the Cabbage Maggot 



iChortophila brassicae, Bouche).—Proc. Ent. Soc. Nova Scotia 



1919, Truro, no. 5, February 1920, pp. 41-66, 1 plate. [Received 



9th June 1921.] 



The hfe-history of Phorhia {Chortophila) brassicae, Bch., as occurring 



in Nova Scotia, is described. The experiments discussed in connection 



with remedial measures have already been noticed [R. A.E., A, ix, IZ/J. 



Whitehead (W. E.). Notes on the Life-history and Nymphal Stages 



of Entylia bactriana, Germar.— Proc. Ent. Soc. Nova Scotia, 1J19 

 Truro, no. 5, February 1920, pp. 67-72, 1 plate. [Received 9th 

 June 1921.] 

 The Membracid, Entylia bactriana, Germ., has been causing consider- 

 able damage to annual sunflowers {HeliantJms annuus) m Nova Scotia 

 during recent years. This is apparently its only food-plant m Nova 

 Scotia The eggs are laid in irregular masses along the midrib on the 

 lower surface of the leaf, causing it to curl. Oviposition occurs m the 

 latter part of June and beginning of July. In 1919 the first eggs 

 hatched on 12th July. The nymphs are very sluggish, and feed on 

 the lower surface of the leaf throughout the five mstars. The adults 

 appear in about 30 to 40 days, and hibernation occurs m this stage. 

 There is only one generation a year in Nova Scotia. According to 

 Funkhouser [R.A.E., A, vi, 222] there are two generations m New 

 York and the entire life-cycle may be spent on joe-pye {Eupatortiim 

 purpLreum). This author's description of the adult stage is quoted. 



Brittain (W. H.). The Occurrence of the Apple Sucker {Psylla nmU, 

 Schmidb.) in Nova Scotia.— Proc. Ent. Soc. Nova Scotia, 1919 

 Truro, no. 5, February 1920, pp. 73-76. [Received 9th June 1921 .] 



The various stages of PsvUa mali, Schmidb., and the injury it causes 

 are described. The remedial measures indicated have already been 

 noticed [R.A.E., A, vii, 506]. 



