374 



Insect Pests. 



l.lack, sometimes witli just a speck of l.ilack in the middle. There 

 may also be variation m the other parts of the legs. The wings 

 are slightly smoky with pale costa. In the male the antennae are 

 shorter tlian the body, but in the female they are nearly as long. 



There is apparently much general variation, for Cameron (1) 

 savs "in many specimens tlie cohjur is testaceous and may have a 

 yellowish tinge." 



The females appear td lay their eggs during the warmest part 

 of the day. Tlie eggs are placed anywhere on tlie under surface of 

 tlie leaves, pist as is done by tlie slugworm. They hatch out in 



aljout ci^ht days ; a 

 few under oljservation 

 inculiated in five days. 

 Tlie young larva_- at 

 once commence to feed 

 on the under epider- 

 mis, eating tlieir way 

 out at the surface. 

 At first the larva' are 

 |i a 1 e greyish - green 

 with a reddish tinge, 

 sometimes varying to 

 grey, the sides pale 

 green to white, and 

 the last two segments 

 are pale. When older 

 they are green or 

 greyisli - green with 

 almost white sides and 

 last two apical seg- 

 ments ; the head is variahle, but usually pale, dull, orange-bnjwn, 

 with spots of a lighter oi-ange hue and a very prominent Idack mark 

 at the back of the head extending forwards. Now and again in 

 mature larvie the head is either all deep orange or all dusky black, 

 and e\'en the )i]a(dc mark may lie alisent. The larva-, when not 

 feeding, remain in a coiled position under the leaves. 



Lar\al life lasts about tliree weeks. "When mature the larva- fall 

 til tlie ground and ^lurro^\' into the earlli. \\\ ii\"al encoon of parch- 

 ment-like material is formed in ^\llich it changes to a pale grey 

 pupa. Tliis cpiiescent stage lasts fnim nine to twehe days. The 

 whole ]il'(.'-cyele may thus be eompleted in fi\e weeks. 



The second brdod appears alumt llie middle of dnne, and these 



f, 1T.U3I i,i:af k.\ti;-n i'.v i'r,u3i le.\f .s.vwflv 

 (C'.aJlijs piiili); a ami '', i.AUV.K. 



