1334 Roaer C. SMITH 
Not infrequently stalks without eggs were found, also a stalk with 
a small part of an egg 'on it. A female of C. mgricornis which had 
demonstrated these and other abnormalities was watched one afternoon. 
Oviposition was repeatedly attempted, though it appeared that the 
eggs had become lodged. The insect was observed to deposit a half 
dozen stalks without eggs, also some stalks with small pieces of the 
chorion on them. She also deposited other pieces of chorion indiserimi- 
nately without stalks. She later deposited normal, stalked eggs. She 
also deposited one stalked egg with an unstalked egg adhering to it 
(fig. 159, B), and another with a piece of chorion attached to a normally 
deposited egg. Near the end of her life she deposited a few fertile eggs 
without stalks. 
A 
Fic. 159. ABNORMALITIES IN OVIPOSITION 
C, Accidental fusion 
HE, Abnormal oviposition 
F, Egg of C. oculata showing a drop of the gelatinous stalk material 
A and B, Abnormal oviposition in Chrysopa nigricornis, x 5%. 
of stalks in C. oculata. D, Abnormal oviposition in C. chi. 
in C. oculata. 
(g) 
