321 



McDuNNouGH (J.). New British Columbia Tussock Moth, Hemero- 

 campa pseudotsugata. — Canad. Ent., London, Ont., liii, no. 3, 

 March 1921, pp. 53-56. 



The synonymy of Hemerocampa vetiista gidosa, Hy. Edw., is dis- 

 cussed. The tussock moth attacking Douglas fir in British Cohnnbia, 

 and recorded under this name [R.A.E., A, vii, 212, 479; viii, 481], 

 is now described as a new species, H. pseudotsugata. 



Fenton (F. a.). New Parasitic Hymenoptera of the Subfamily Anteo- 

 ninae (Diyinidae). — Canad. Ent., London, Ont., liii, no. 3, 

 March 1921, pp. 70-71. 



The species dealt with are : — Epigonatopus americanus, sp. n., 

 probably a parasite of Balclutha impicta, Van Duzee, on Panicum sp. ; 

 and Gonatopus agropynis, sp. n., and G. similis, sp. n., reared from 

 Deltocephalus affinis in Iowa. 



Lloyd (LI.). A Spray for Red Spider on Cucumbers and Tomatoes. — 



Lea Vallev & Dist. Nurs. & Growers' Assoc, Cheshunt, Circ. i, 

 no. 5, April 1921, pp. 1-2. 



A spray that is recommended as being a successful remedy for red 

 spider [Tetranychus telarius) on cucumbers and tomatos under glass 

 consists of 5 lb. flour and 3 lb. potassium sulphide (liver of sulphur) 

 in 100 gals, of water, applied at the rate of about 1 gal. to every ten 

 full-grown cucumber plants, so that they are well wetted, especially 

 on the undersides of the leaves. In drying, this breaks down the 

 webs so that the mites and eggs become coated with a film, from which 

 they cannot escape. A thin layer of sulphur is left over the foliage, 

 and poisons any mites that have escaped the spray. The effect on 

 cucumber plants is very slight, occasionally scorching a newly opened 

 leaf. It does not harden the foliage as soap sprays are apt to do. 

 The fruit can be marketed the day after spraying. Tomatos, so far 

 as they have been tested, do not seem to be injured by the spray. 

 Two thorough applications should be made, with an interval of a 

 week between them. The preparation of two gallons of the spray 

 is described. 



Petherbridge (F. R.). Observations on the Life-history of the 

 Wheat-bulb Fly {Leptohylemyia coarctata, Fall.). — //. Agric. Set., 

 Cambridge, xi, pt. 1, January 1921, pp. 99-105, 2 plates. 



Observations on Leptohylemyia coarctata confirm those of other 

 observers that the worst attacks follow a bare fallow or bastard fallow, 

 and that bad attacks also occur after potatoes, rape, swedes, turnips 

 and mangels. There is only one generation a year ; the adults 

 emerge in June and July and oviposit in bare soil, about one-eighth 

 of an inch below the surface, in July, August and possibly September. 

 A few eggs may hatch the same autumn, but the majority hatch the 

 following spring, and the larvae may be found on wheat plants in 

 March and April. The larva bores into the centre of the wheat 

 shoot and feeds at the base of the shoot, causing its death. When 

 fully fed, in the third stage, it enters the soil and pupates about 1^ to 

 2 inches below the surface. Pupation usually takes place in May. 



(3393) Wt.P3/184 1500 7/21 Harrow Z 



