HOW TO KNOW THE IMMATURE INSECTS 



1 30a. Labrum smalL or indistinct and fused with front and clypeus. 

 Fig. 337 Subfamily Clytrinae*, CHRYSOMELIDAE 



The genus pictured is confined to the 

 Eastern Hemisphere. It is represented in 

 North America by the genus Antipus. 



Fig. 337. o, Clytro quodri- 

 punctota L. (Redrawn from 

 Boving & Craighead); b. 

 Dorsal aspect of head. 



130b. Labrum well developed and free. 



131 



131a. Maxillary palpus 3 or 4-segmented (excluding 

 palpifer); 8th abdominal spiracles present and 

 laterally placed; 9th abdominal segment ter- 

 minal. Fig. 338 132 



Q 





Fig. 338. 

 Ma)^illa. 



13 lb. Maxillary palpus 2-segmented or less; 8th abdominal spiracles 

 if present, thus dorsally placed, or absent; 8th abdominal seg- 

 ment terminal with free hind margin 135 



132a. Tarsus long, slender, without pul villus; mandible compressed, 

 with 2 to a distal teeth. 

 Fig. 339 Subfamily Eumolpinae*, CHRYSOMELIDAE 



This" is a large and important sub- 

 family. Its members are widely distri- 

 buted and often highly economic. 



Fig. 339. Chrysochtts ouratus 



Fab. 



132b. Tarsus of moderate length, curved, «,„r 

 and usually with pulvillus; mandible 

 palmate vdth 4 to 5 distal teeth. 

 Fig. 340 133 



Fig. 340. a, Mandible; 

 b. Leg. 



123 



