276 Annals Entomological Society of America [Vol.11, 



placed between. Antennae of four segments, as in the adult. Legs 

 similar to those of adult except the tarsi which are two-jointed. 



Color: Head and thorax black, abdomen greenish, changing to 

 yellowish green. Antennae and legs reddish. Whole insect covered 

 with stiff hairs which are prominent on the head. 



SECOND INSTAR. 



2 mm. in length. Head and thorax as in first instar, except as 

 to color. 



Color: Whole insect of a reddish cast due to small red spots and 

 blotches on a yellowish background. Antennae with two narrow dark 

 stripes extending through first three segments. 4th segment darker 

 toward the vertex. Two black spots on interrupted segment, one on 

 either side of dorsal glands. Legs yellowish banded with red. Entire 

 insect with coarse hair. 



THIRD INSTAR. 



3 mm. in length. Eyes imore prominent, Wing-pads appearing 

 with veins black. Two black spots on 2nd abdominal segment, 2 

 on 4th and 2 on 5th. Other characters as in second instar. 



FOURTH INSTAR. 



4 mm. in length. Head separated from thorax by constriction. 

 Prothorax clearly defined. Wing-pads more prominent. Abdomi- 

 nal spots sometimes more numerovis, though the six of the third instar 

 alwavs present. Scutellum faintly outlined by lighter shade. 



FIFTH INSTAR. 



5 mm. in length. Wing-pads reaching almost to 4th segment of 

 abdomen, much darker in color especially toward the extremities. 

 Spots on 2nd segment increased to four, others as above. 



DESCRIPTION OF PLATE. 



1. Cluster of eggs attached to host-plant. 



2. First instar of Corizus lateralis Say. 



3. Second instar of Corizus lateralis Say. 



4. Third instar of Corizus lateralis Say. 



5. Fourth instar of Corizus lateralis Say. 

 (). Fifth instar of Coriztis lateralis Say. 



