220 Insect Pests. 



pale green, and the eyes bright red. The larvte are pale green. 

 When the leaves lose their sap the larva? turn to pupre, and then to 

 winged females. The pupa of this species is shiny yellowish-green, 

 with two brown spots on the back of the head. The winged vivi- 

 parous female is bright green, with pale olive head, brown thorax 

 with an olive band across it, irregular transverse bands and spots 

 on the abdomen, and four or five dark lateral spots ; the deep olive- 

 green to black honey-tubes are cylindrical in form, and the deep 

 green legs have olive feet. Towards July many leave the currants, 



FIG. 169. A KNAPSACK SPRAYER ("FOUR OAKS PATENT") USEFl'I, 

 IN SPRAYING BUSH FRUIT, ETC. 



but some always seem to remain, and give rise to egg-laying females 

 and males, the former depositing their long brown eggs under the 

 exfoliated rind, attaching them to it by a gummy excretion ; the 

 eggs hatch in the spring, when they give rise to larvte, which soon 

 grow into the "mother-queens." The wingless female is smaller 

 than in the former species, being lii/tle more than -^ ^ ncn l n g- It 

 also occurs on the gooseberry, and it curls up the leaves and deforms 

 the shoots often to a serious extent. 



NATURAL ENEMIES. 



The larvae and adults of the Two-spotted Ladybird are often 

 to be found feeding amongst the colonies of lice, and do inesti- 

 mable good in keeping them in check. Larvre of several species 

 of Hover Flies also feed on them, their leech-like frreen or dull red 



