PLATE XLI 
ARZAMA OBLIQUA 
21, Egg. 22, Full-grown larva. 23, Pupa. 24, Egg mass on cat-tail leaf. (The larvae 
have emerged and mined along the middle part of the leaf, thus causing the center to die.) 
25, Cat-tail leaf with egg mass, showing mine and exit holes of larvae. 26, Adult female. 
27 and 28, Full-grown overwintering larvae in stalks of cat-tail. 29, Newly hatched larva. 
30, Dorsal view of caudal segments of larva, showing position of spiracles on eighth abdominal 
segment. 31, Tracheal system of full-grown larva. (Only the first one of the five branched 
tracheal tubes is shown in its entire length) 
