INTRODUCTION. 



The antennae are of very different forms, either (1) filiform, 

 (2) fusiform, or (3) dilate, and are rarely simple, but usually (1) 

 ciliate, (2) with paired bristles at each joint, (3) with both cilia 



6. 7 



Fig. 2. A.ntennee of moths. 



and bristles, (4) fasciculate, (5) toothed, (6) lamellate, (7) serrate, 

 or (8) pectinate, with single or paired branches. 



The thorax is small and consists of three pieces the prothorax 

 bearing the fore legs, the mesothorax the mid legs and fore wings, 

 and metathorax the hind legs and hind wings. 



The legs consist of (1) coxa, (2) trochanter, (3) femur, (4) tibia, 



u/ 



Fig. 3. Legs of moths. (From Packard's Guide, p. 231.) 



1. Fore leg. 2. Mid leg. 3. Hind leg. 

 c. Coxa. u. Ungues. 



t. Trochanter. p. Pulvillus. 



/. Femur. sp. 1. Single anterior spur. 



t. Tibia. sp. 2. Paired medial spurs. 



tar. Tarsus. sp. 3. Two pairs of posterior spurs. 



B2 



