LEPIDOPTERA 



113 



1. The length and form of the antennae and the posi- 

 tion in which they are carried. 



2. The mouthparts: com- 

 pare with Fig. 44. Ex- 

 amine a microscopic 

 slide mount of the pro- 

 boscis, if one isavailable. 



3. The form and size and 

 relations of fore and 

 hind wings. 



II. With a pupa in hand 

 note that all the appendages 

 not only enwrap the body, 

 but they are solidly sealed 

 down to it, only the tip of the 

 abdomen being free. 



III. With a larva in hand, note. 



1. The horny head capsule, with its armor plates meet- 

 ing in a V-shaped suture on top. 



2. The small pigmented eyes. 



3. The minute bristly antennae. 



4. The biting mouthparts: a horny upper lip, a pair 

 of stout toothed mandibles, thinner maxillae and 

 labium with palpi of both much reduced in size. 



5. The minute spinneret near the middle of the tip of 

 the labium. 



6. The jointed legs on each segment of the thorax. Find 

 in them the usual leg parts. Use slide mounts for this. 



Fig' 46. — The corn ear-worm, Cirphis 

 unipunctata: a, the moth; b, the larva that eats 

 into the corn ear; c, the eggs; d, the pupa 

 (from Severin, after Howard). 



