450 Insect Pests. 



but as we know the ill effect of certain dressings on the young larvee 

 it is well to prevent the damage by employing one of them in early 

 autumn. 



REFERENCES. 



(1) Theobald, F. V. Notes on Injurious Insects, Journal S. E. Agri. Coll., 



Xo. 5, p. 3 (1897). 



(2) Curtis, J. Gardeners' Chronicle, p. 873 (1845). 



(3) Ormcrod, E. A. Twentieth Eeport on Injurious Insects, p. 41 (1897). 



(4) Whitclicad, Sir C. Journal of the Board of Agriculture, vol. III., p. 36. 



(5) Ormerod, E. A. ' Manual of Injurious Insects,' (2nd Ed.), p. 9 (1890). 



(6) Theobald, F. V. 'The Entomologist,' p. 194 (1896). 



(7) Cool; M. C. 'Vegetable Wasps and Plant Worms,' p. 165 (1892). 



THE HEART AND DART MOTH. 

 (Ay rot is exclamationis. Linn.) 



AND THE YELLOW UNDERWING. 



(Triphccna pronuha. Linn.) 



The caterpillars of the Heart and Dart Moth now and then are 

 recorded as damaging the rootlets and runners of strawberries, and 



have also been found eating the 

 '' tips " of loganberries. 



They are generally spoken of as 

 surface larv;e, cutworms or brown 

 grubs. There are several allied 

 larvre which feed in a similar 

 way upon the roots of plants and 



. . , 111 



(Agroti* exclamation!*). grass, and probably any of these 



may attack strawberry plants in 



a similar manner, but the only other one sent me has been the large 

 larva of the common Yellow Underwing (Triplicma pronuba, Linn.), 

 and this only on two occasions. 



LiFK-HlSTOIlY AND HABITS. 



The Heart and Dart Moth appears in June and July. The moth 

 (Fig. 295) is brownish to almost clay coloured, the fore wings with 

 darker markings, one being almost kidney shaped, one dagger shaped 

 and darkened towards the edges ; the under wings of the male are 

 almost pearly white, of the female, brown. The natural size is seen 

 in the photograph (Fig. 295). The eggs (Fig. 296) are laid at dusk on 

 plants close to the ground and even on objects on the ground. The 



