4 BULLETIN 1076, U. S. DEPARTMENT OF AGRICULTURE. 
REARING RECORDS. 
So much for field observations. On each examination of the pond 
material was collected and brought to the laboratory for rearing. 
The results obtained throw additional light on the seasonal habits of 
the moths. As stated above, pupz taken in the seed heads July 19 
continued to develop moths until July 28. Larve taken at the same 
time on the leaves varied greatly in size, some of them being very 
small. The first of these pupated July 28, the last August 15. Moths 
emerged from August 4 to August 22. Another collection of larve 
made from the leaves July 28 pupated August 3 to August 18, and 
moths emerged August 12 to August 27. A mass of eggs found 
August 6 hatched August 9, and the larvee were reared. They pupated 
August 28 to September 2, and the moths emerged September 9 to 
September 17. Another series of larve taken both from petioles and 
leaf blades on August 5 pupated from August 6 to August 22, and 
moths emerged August 13 to August 29. Larve from a lot of 67 col- 
lected August 15 pupated from August 17 to September 12, and 
moths emerged August 28 to September 22. 
LIFE CYCLE. 
Assuming for the present, as seems probable, that the species passes 
the winter in the larval stage, it 1s evident that the life history must 
be substantially as follows: 
The overwintering larve pupate and the moths emerge and oviposit 
about mid-June. The resulting larve feed on the leaves, and when 
fairly grown, about July 1, seek the flowers and enter the young pods, 
feeding upon them to some extent and pupating within them. The 
moths of this first generation emerge from July 7 to July 28. Eggs 
are at once produced by these moths and constitute the first stage of 
the second generation. The eggs soon hatch, and the oldest of the 
larve produced are approximately half grown by July 19; but moths 
of the first generation continue to oviposit until about August 5, so 
that second-generation larvee are hatching continuously from July 10 
to August 8. A collection of these larve made July 28 pupated Au- 
gust 3 to 18 and moths emerged August 12 to 27. These larve of the 
second generation feed on the leaves and pupate in the upper ends of 
the leaf petioles. 
The moths of the second generation give rise to the third-genera- 
tion eggs and larve, which survive the winter and constitute the 
spring generation. It seems possible that some of the smaller larve 
of the second generation seek hibernation quarters instead of com- 
pleting their growth the same fall. In this case there would be only 
two generations annually, but it seems probable that there are three 
generations as a rule. Their behavior from the time the larve seek 
