THE CANABUN ENTOMOLOGlSt. 95 



base of a grass stalk and remain quiet till the warmth of spring arouses 

 them. After their long exposure and fast, their colouis are perceptibly 

 duller and the body is much shrunken. The larvse soon regain their normal 

 size and colouring. In the spring there are at least two moults. The 

 larvae pupate the latter part of June. The pupa state lasts about five 

 days. The pupae are bright green, striped with white. They lie in loose 

 while cocoons, which are attached to blades of grass. 



The moths that emerged the latter part of June laid eggs. The larvae 

 from these eggs completed their growth about July 13, and July 20 a 

 second generation of moths emerged, the round of life being completed 

 in thirty days. It is probable that a third generation occurs in the month 

 of August. At least it is possible and in harmony with what is known, 

 because the moths are quite common in August, and there is no evidence 

 to show that the moths live more than two weeks. 



Egg. — A pale straw colour ; form an oblate spheroid ; short diameter, 

 .36 mm.; long diameter, .42 mm. There are numerous ridges ; micropyle 

 complex. (Fig. 7.) 



Larva, first stage. — Head diameter, .2625 mm.; body diameter, .1875 

 mm.; length, .9375 mm. Head cream coloured; body a pale yellow. 

 There are several rows of minute tubercles on the body, and from each 

 tubercle a light-coloured hair grows. The hairs are longer at the extremi- 

 ties of the body, and give the larvae a fuzzy appearance. There are five 

 pairs of prolegs, occurring on the seventh to tenth and thirteenth segments 

 inclusive. 



Larva, second stage. — Head diameter, .3875 mm. The body is more 

 hairy and the colour a deeper green. 



^Larva, third stage. — Head diameter, .6875 mm. The body is a 

 bright green, and the hairs are relatively shorter than in the preceding. 



Larva, fourth stage. — Head diameter, .849 mm. The larva has two 

 prominent dorso-lateral ridges, which are marked with white stripes. 



Larva, fifth stage. — Head diameter, 1.2 mm. Markings the same as 

 in the preceding. 



Larva, sixth stage — Head diameter, i.S mm. The larva has two 

 narrow creamy-white subdorsal stripes in place of one broad one ; hairs 

 dark coloured. 



