1897.] The Golden-Eye or Lace- Wing Fly. 501 
from the posterior end of its body aspherical silken cocoon, so 
small that one can but wonder how so large a larva stays in- 
side it. The completed cocoon (c) is about the size of a small 
DEA 
7 roine mUa PEI: PD wee. 
— CEE ASA E Vee, 
sa NI Ba titan T Ai MRA 
Fıc. 1. Chrysopa oculata. a, eggs; b, full-grown larva or aphis-lion; d, larva — 
devouring an adult psylla ; e, cocoon; f, adult insect ; g, front view of the head 
of the adult—all enlarged. (Reduced from figure by U. S. Dept. of Agr. ) 
smooth pea, of a pearly white color, generally mottled in places 
with black (e). Within this tiny ball the larva becomes a 
pupa, and a short time afterwards changes into an adult, which 
gnaws out a circular cap and escapes. 
The adult is a very different insect from the larva. It isa 
delicate-looking creature, a little over half an inch long, of a 
pale green or bluish-green color, with beautiful golden eyes 
standing out prominently on the sides of the head, which bears 
too long slender feelers or antenne, that under a lens are 
seen to be furnished with numerous fine hairs. The first’ seg- 
ment behind the head—called the prothorax—is wide and 
flattened ; it bears a single pair of legs. The two following 
segments—the mesothorax and metathorax—are much larger — 
and closely united ; each bearsa pair of wings above and a pair 
of legs below. The legs are rather long and slender, of much 
the same color as the body; the feet are tipped with two re- 
curved claws. The wings are very large in proportion to the 
35 
