234 
Psyche 
[October 
on Amaranthus retroflexm L., a weed commonly known as red 
root or pink root and sometimes very plentiful in cultivated 
orchards and fields. 
At Moorestown, New Jersey, on July 25, where most of our 
observations were made, many plants of Amaranthus retroflexus 
were observed to be heavily infested with all nymphal stages and 
adults. Many eggs were present also. The upper leaf surfaces 
were mottled and spotted with white and some entire plants were 
almost white from top to bottom due to the combined attacks of 
hundreds of nymphs and adults. The injury appeared to be 
most severe at the tips of the plants and here the flowers and 
young, tender leaves hung limp and white. Eggs and empty egg 
shells were quite plentiful on this date. Some leaves carried as 
many as 18 or 20 eggs, anywhere on the lower surface and some 
of the flower heads were full of eggs. A few eggs were found on 
the upper leaf surfaces close to and parallel with the main ribs 
and side veins, sometimes in the axils of the veins. Others were 
found attached to the portions of the leaves between the side 
veins. 
The pearly-white eggs appear to be deposited singly and 
fastened lightly to the leaf tissue and sides of the ribs and veins. 
The nymphs inhabit the lower leaf surfaces and flower heads, but 
the adults may occur on any portion of the plant. The nymphs 
are green or greenish with white markings and their color blends 
with that of the injured leaves. Whereas at Moorestown on 
July 25, many eggs and all stages were present, adults and last 
stage nymphs greatly outnumbered the other forms. It ap- 
peared at that time as if a new brook of adults had just gotten 
under way. Later in the season or on August 30, quite a few 
adults were present, a very few last stage nymphs and a very 
few eggs. Many of the adults appeared in to copulation on the 
flower heads. 
Adult. This was described by Say (Complete Writings vol. 1, 
p. 349) as follows. 
‘‘T. cinerea — Not dilated, hemelytra with six or seven marginal 
spots. 
Inhabits United States. 
