322 



the damaged portion amounts to 17 per cent, of the whole area cultivated 

 with this crop. The insect has probably only one brood a year ; the 

 adult appears in April or May, and devours the buds or young shoots 

 of the peanut, interfering with the growth of the plant. It may 

 remain in this stage till July or August, or even September. It also 

 attacks beans, melons and sweet potatoes. The complete hfe-history 

 is stiU under investigation. No effectual remedies have been dis- 

 covered. At present powdered tobacco, and sprays of lead arsenate, 

 zinc arsenate, Paris green etc., are in use. 



Takahashi (R.). Two new Species of Aphididae from Japan. — 



Canad. Entom., London, Ont., lii. no. 4, April 1920, pp. 77-78. 

 2 figs. 



Stomaphis pmi, sp. n., on Pinus densiflora, a.nd Br achy coins fframini, 

 sp. n., are described from Japan. The latter was found on a plant 

 belonging to the Gramineae and is very common from August onwards. 



TiMBERLAKE (P. H.). Correction of two Generic Names in Coleoptera 

 and Hymenoptera. — Canad. Entom., London, Ont., hi,no. 4, Anril 

 1920, p. 96. 



As the recently proposed name, Brethesia, [R.A.E., A, vii, 524] 

 proves to be preoccupied, Brethesiella is proposed in place of it. 



Jack (R. W.). Further Experiments with Poisoned Bait on Maize 

 Lands. — Rhodesia Agric Jl., Salisbury, xvii, no, 2, April 1920, 

 pp. 130-136. 



Further experiments have been made with poisoned baits [R.A.E., 

 A, vii, 315] for the Tenebrionids, Gonocephalum, and Emyon, and the 

 Curculionids, Tanymecus and Sy states. The experiments were most 

 successful and the bait seems particularly valuable against Tanymecus, 

 though further tests are necessary to prove the value of distributing 

 the bait on chopped grass etc. The value of distributed bait on bare 

 lands is unquestionable, as is also that of spraying the bait on self- 

 sown maize and weeds before these are hoed out previous to planting. 

 In suitable seasons trap-rows of maize might be planted for this purpose, 

 but the poison must not be used on the growing crop. The planting of 

 the main crop should be delayed till after 1st December. 



Treherne (R. C). Insects for the Year 1919. — A(]ric. Jl., Victoria, 

 B. C, V, nos. 1-2, March- April 1920, pp. 25-26, 52-56. 



The studies on the life-history, habits and control of the peach twig 

 borer, Anarsia lineatella, have been continued [R.A.E., A, vii, 170]. 

 Larvae were first found to be infesting terminal buds of peaches on 

 27th April in 1919. Pupation occurred on 28th May and the moths 

 emerged 16th June. Under laboratory conditions this moth has at 

 least a partial second generation. Lime-sulphur as well as lead 

 arsenate sprays have again proved successful. The first spray against 

 the adults of the pear thrips, Taeniothrips inconsequens, was apphed on 

 31st March as the opening of the buds was retarded by the cold weather. 



