THUCK-CROP INSECTS 
PAINTED LADY (Vanessa card ui L.) 
California E. ... McSregor (March 27:): In the spring of the 
writ r r ported a. migration in vast proportions of the 
thistle butterfly (vh r.egsa cardui L. ) which consum 1 
throe lays in the flight. Commencing March 20 a similar 
migration of this butterfly has been progress until March 
2c. Cnly an occasional individual has been seen today, 
and I am certain that the flight is virtually .. Thus 
pre* nt migration has occupied .just a week. The greatest 
density was r ;] d at Lindsay on the 2Uth, when many 
hundreds were continually in sight at any moment. I believe 
that the migration of 192U was more spectacular owing to 
the fact that at its height the butterflies ,v ere more numer- 
ous per unit of area, but it seems probable that the flig] t 
of this spring included more individuals owing to its much 
1 on ge r dur a t i or. . 
As ne; rly as could be ascertained, the direction of flight 
was identical both years, namely, from the southeast to -the 
northwest. The remarkable features of these migrations is 
that the but t r " ' >s are to be seen at the same time over the 
;r ater portion of southern and central California, in- 
cluding a north and south range of over 500 miles. As in 
lS'2-i, the latest flight was coincident <mlth the warmest 
... tiier Qj p .. year, to date, the maximums bavins been 
bet^ean 7~ c and SS°. 
During the major part of the day the butterflies keep 
moving, but as dusk aurroaches they appear to settle for 
the night or any sort of vegot* tion bearing blossoms. A very 
limited -mount of feeding is done during the day on orange 
blossoms. Egg laying did not appear to occur in this district 
to a noticeable extent in connection with the 192U migration, 
but at that time Mr,, hoy 5. Campbell reported an outbreak 
of the caterpillars of the species, following tl 'light 
of the adults in southern California. 
TOIBEWCRM (Elateridae) 
P. L. Thomas (March 27): Wire-voms have done some d- -. 
■ to veg x .hie crops in Brazos and Washington '.ties. 
aphii" : 
P. L. Thomas (March 27): Plant lici ■ tl ■ abund- I 
on truck crops. 
CUTWORMS (Noctuidks) 
P. L. Thomas ("' 7): 3ut-orns do not seem to be as 
ubl . some as usual, 
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