BEET AND SPINACH INSECTS 101 



especially on the hind winos. The markings are translucent 

 white ; on the front win<>; there is a narrow curved line near the 

 base ; a nearly square ])atch at the middle near the front edge; 

 a line running from close to this to the hind margin, and tw^o 

 thirds the distance to the outer margin a wdiite bar extends 

 halfway across the wing. Across the middle of the hind wing 

 is an irregular white band, narrower behind. 



The moth deposits her flat, oval, semi-transparent, greenish 

 eggs, about ■3^0' ii^<^'h in length, singly on the stems of the plant, 

 usually near the base. The young larvse at first skeletonize 

 the leaves but later devour the whole leaf. The fuU-grow^n 

 larva is a little more than ^ inch in length, shining green and 

 marked with rows of small black spots. Pupation takes place 

 in a thin loose silken cocoon on the ground at the base of the 

 plants. The pupal period occupies from one to three wrecks, 

 depending on the season. Under greenhouse conditions the 

 life cycle is completed in two or three months. 



The spotted beet webworm may be controlled by the meas- 

 ures suggested for the preceding species. 



References 



Davis, 27th Kept. State Ent. 111., pp. 103-lOG. 1912. 

 U. S. Bur. Ent. Bull. 127, pp. 1-11. 1913. 



The Southern Beet Webwc^rm 



Pachyzancla hipunctalis Fabricius 



In Georgia, Florida and Texas, this webworm has been re- 

 ported 'as occasionally injurious to beets, cauliflow^er and cab- 

 bage. Its wild food plants include ragweed, spiny amaranth 

 and Amarantus retrofle.vus. The insect ranges southward 

 through the West Indies into South America and also occurs 

 in South x\frica. The caterpillars feed on the leaves of their 

 food plants, folding and webbing them together wdth silken 



