228 Transactions of the Academy of Science of St. Louis are Tran 
found feeding on Pentstemon hirsutus and on Symphoi Ss 
orbiculatus (of the Scrophulariaceae and Caprifoliaceae, respec- 
tively) at Ranken, and on the Pentstemon at St. Clair. That 
same spring some larvae collected at Allenton and Antonia the 
preceeding fall and kept outdoors through the winter escaped 
from their cages and were found in the writer’s yard, feeding 
on a species of Veronica that was growing as a weed there. 
These escaped larvae and caterpillars collected on Pentstemon 
all accepted both Pentstemon hirsutus and Veronica and com- 
pleted their development. 
On June 21, 1933, six large clusters of eggs were found on 
the under side of leaves of Aureolaria grandiflora; they hatched 
between June 25 and 30, all of the same batch hatching on the 
same day. Since the Veronica and Pentstemon hirsutus were 
all gone by this time, and 4ureolaria not available at the writer’s 
accepted did not appear to entirely sowermee the larvae 
did not thrive on it and only a few succeeded in reaching the 
stage of inactivity that see E becaation, and these were of 
small size. The plants rejected were Symphoricarpos orbiculatus 
Sambucus canadensis, Campsis radicans (the caterpillars ac- 
cepted this at first, but after eating a little stopped and refused 
to touch it further; they died soon afterward), Datura 
stramonium, and cultivated Petunia. The rejection of the last 
known to be acceptable, but it is surprising that they reject 
Symphoricarpos orbiculatus at this time but thrive upon it after 
hibernation. Their attempts to nibble the leaves of the trumpet 
plant should be tested upon caterpillars after hibernation. It 
is possible that the difference in food habits shown before and 
can eat plants which, because of the thickness or texture of 
their leaves, cannot be eaten by the little newly-hatched larvae. 
It is certainly to their advantage to have more varied tastes in 
the spring, because at this time the new shoots of Aureolaria 
are barely showing above the ground. 
After reaching the butterfly — the Missouri representa- 
tives of this species show behavior that differs from that de- 
scribed by Scudder in two sean First, the butterflies do 
not stay in the immediate neighborhood of the - plant, but 
usually make their way down into the valleys much as a 
quarter or half mile away. Second, although a he are often 
