GARDEN PESTS IN NEW ZEALAND 



four times, respectively, in the year. Climatic and food-supply condi- 

 tions have a distinct influence on the number of broods, the one species 

 in many cases being single-brooded in colder, and two or three-brooded 

 in warmer climates. During the winter, when the temperature is low 

 enough, insects are more or less dormant in some stage of their life 

 cycle ; such a state is the period of hibernation. 





6 



4 



FIGURE 4. 



1, Silverfish. 2, Earwig; a, young larva; b-d, later stages; e, adult. 3, Cicada; f, young 

 larva; g, resting stage prior to emergence of adult; h, adult. 4, Thrips ; 1 and j, larvae; 

 k, first stage pupa; 1, second stage pupa; m, adult. 5, Aphis-lion ;. n, larva; o, pupa; p, 

 adult. 6, Moth; q, egg; r-t, larvae; u, pupa; v, adult. 7, House-fly; w, egg; x-z, larvae; 

 aa, puparium ; bb, adult. NOTE : Developing wings shown in black. 



