SUMMER NUMBER 13 
quiescent periods, little or not at all affected by outside in- 
fluences, are evidence of a long course of adjustment to condi- 
tions as found in the temperate zone. 
In the spring of 1913 the generations were not distinct, for 
eggs and larvae of all sizes were found at the same time. The 
time required for the development of a generation, 65 days not 
including the time required for mating and oviposition after 
emergence, indicates that there may be several generations in 
Florida in one year, and at least two as far north as the species 
is likely to go. It is probable that it is a continuous breeder 
in its permanent range and that it travels northward every 
summer and is killed back every winter as is the case with 
several others of our economically important insects. However, 
the fact that Calpodes ethlius has reached and caused damage 
at Washington, D. C., may indicate similar possibilities for this 
species, 
The original account gave American wisteria (Bradleya frute- 
scens (L.) Britton) as the food plant but a note adds that it 
‘is most commonly to be met with in the chrysalis state on the 
blades of Indian corn, Zea mays, in which it enfolds itself.” 
Chapman found larvae in the leaves of Hrianthus alopecuroides 
(L.) Ell. at Apalachicola, Florida. McConnell found several 
larvae feeding on sorghum at Greenwood, Mississippi, and one 
on a grass locally known as “tumble grass,” probably Panicum 
capiliare, at Memphis, Tennessee. The writer found larvae 
feeding in leaves of upland rice on the grounds of the South 
Carolina Experiment Station at Clemson College and a single 
one in a rolled leaf of Johnson grass (Sorghum halepense) at 
the Florida Experiment Station at Gainesville. All other rec- 
ords give corn as the food plant. Further observations are re- 
quired to determine the possible food plants but, among culti- 
vated crops, corn will probably head the list. 
Three species of parasites have been reared, one from eggs 
and two from larvae. 
Xenufens ruskint Gir. Of eleven eggs taken on corn leaves 
at Orlando, January 28, two were mottled and darker than the 
rest. On February 10 they had become very dark and on the 
20th 12 minute hymenopterons emerged from one egg, and on 
the 25th, 10 from the other. They left through a small hole in 
