Memoir 58 PLATE LXXXV 
VARIOUS STAGES IN LIFE HISTORY OF SOME CHRYSOPIDS AND HEMEROBIIDS 
1, Four dram vials plugged with cotton, as used in these rearings in the 
study of all stages. The cocoons may be seen 
2, A larva of Chrysopa oculata in the final stage of hatching, and a newly 
hatched larva of the same species 
3, Aphids on a leaf of cauliflower, as propagated in the laboratory for feed- 
ing chrysopid adults and larvae 
4, Adult of a hemerobiid, Micromus posticus Walk., shown for comparison. 
5, A grown larva of a hemerobiid, Hemerobius humuli, feeding on an aphid 
from an aster: shown for comparison with chrysopid larvae; x 3% 
6, An egg of Chrysopa oculata ready to hatch, showing outlines of the 
embryo; x 9%. 7, Unstalked eggs of Micromus posticus deposited on a leaf 
in the laboratory, shown for comparison. 8, Two hatched eggs of Chrysopa 
nigricornis, showing the rent and the protruding embryonic molt; x 5\4. 9, 
Hatching eggs of C. oculata on a leaf; one larva may be seen on an egg Shell; 
and others, newly hatched, on the leaf surface. 10, A tangled mass of eggs 
of C. nigricornis as deposited on a goldenrod stem in the laboratory 
