362 RASPBERRY. 



The larvffi and pupse of each of these three species of 

 weevil are very similar to the others, and so are the remedies 

 and means of prevention ; therefore I place them under one 

 heading. 



The 0. sulcatus takes its popular name from being especially 

 injurious to Vines, and is also hurtful to Strawberries. 



The eggs are laid a little below the surface of the earth. 

 The maggots are legless, whitish, somewhat hairy, and are to 

 be found from about August until the following spring at the 

 roots of their food-plants. 



The pupa, figured at p. 361, is yellowish white, with 

 brownish hairs, and is to be found in April lying three or four 

 inches below the surface, where it is stated to remain only 

 fourteen days in this state before development. 



The weevil is a little over four, and sometimes five, lines in 

 length, is of a dull black, with a short snout or proboscis ; 

 the body between the head and abdomen is granulated, and 

 the wing-cases are rough, with several raised lines and 

 spotted with pale hairy tufts, and, like the other species of 

 Otiorhyndms, it has no wings. 



The 0. picipcs, or Clay-coloured Weevil, differs from the 

 above in being smaller, and is reddish brown or testaceous, 

 mottled with ashy scales, so that when only slightly magni- 

 fied it looks of a mottled, dusty clay colour. This species is 

 also very injurious to wall-fruit trees and Vines in hot-houses, 

 and was identified in 1879 as being the species which caused 

 great damage to Easpberry plants in Cornwall. 



A third species— the 0. tcnehricosus, or Ked-legged Weevil 

 — is also mentioned by John Curtis, in the ' Gardeners' 

 Chronicle ' for 18-12, p. 316, as being very hurtful to garden- 

 fruit trees. The beetles feed on the buds, young shoots, bark, 

 leaves, &c., of Apricots, Nectarines, Peaches, Plums, &c.; and 

 have been found also, in the maggot state, doing much harm 

 to the roots of Kaspberries, Currants, Gooseberries, Straw- 

 berries, and to vegetables. 



This weevil, when recently developed, has the wing-cases 

 dotted over with spots of delicate yellow down ; these soop 

 rub off, when the beetle appears to be of a shining black ; it 

 is sometimes of a reddish pitchy colour, whilst still immature. 

 The wing-cases are united to each other, and the legs are 

 generally bright chestnut-colour. 



The specimens which are most commonly sent me are the 

 0. sulcatus and 0. picipes, but in June, 1883, Prof. Allen 

 Ilarker, of the Pioyal Agricultural College, Cirencester, 

 forwarded specimens of 0. tcnehricosus, which were^ then 

 doing much harm by eating leaves of the Strawberries in the 

 garden of the College Farm. 



