October, ’24] 
SCIENTIFIC NOTES 
601 
Scientific Notes 
Recurvaria nanella Hiibner occurred in considerable numbers in the vicinity of Har¬ 
risburg, Pa., on peach, quince, sweet cherry and plum. The larvae caused considerable 
damage to the young leaves. In some instances as many as fifty per cent of the ter¬ 
minals were infested. The adult of this species was reared and identified by Mr. Carl 
Heinrich from material sent to him by the writers. 
T. L. Guyton and A. B. Champlain, Pa. Dept, of Agri., Harrisburg 
Destruction of Canada Thistles by Pyrameis cardui Linn. In north central and 
northwestern Ohio, the larvae of the Painted Lady butterfly have been found in 
great numbers feeding on Canada thistle. In some sections their abundance was so 
great that an uninfested plant could not be found. The leaves, blossoms and upper 
part of the stem were usually entirely destroyed. They attracted much attention 
and were widely heralded in newspapers as “new friends of the farmer.” 
C. R. Cutright, Assistant Entomologist, 
Agricultural Experiment Station, Wooster, Ohio. 
Strategus antaeus Injuring Peach. During the last week in June adults of this 
species were found burrowing under ground and girdling one- and two-year old peach 
trees in the vicinity of Harriman, Tennessee. Injury was quite severe only in those 
orchards that are located on new ground and with an abundance of oak stumps 
through the peach orchard. As the larvae of this species are known to feed on de¬ 
cayed oak leaves and roots, it is more than likely that they bred up from the decaying 
oak stumps. The injury first manifested itself by yellowing of the leaves and later 
by dying out completely. 
S. Marcovitch, Agr. Expt. Station, Knoxville, Tenn. 
The Western Corn Root Worm in Connecticut. — On August 29,1923, the writer col¬ 
lected in the flowers of Hibiscus moscheutos, at Granby, Conn., two slender green 
Chrysomelid beetles. A visit to the same place on September 5 of this year showed 
me that these beetles were quite common on aster, calendula and some other kinds 
of flowers in the garden. This beetle has been identified as DiabroHca longicornis 
Say, by Mr. M. P. Zappe, Assistant Entomologist of this Station. This species, 
which has also been collected recently at Cornwall, Conn'., by Mr. K. F. Chamber- 
lain, occurs in the southern and middle western states, but it is believed that it has 
not heretofore been recorded from Connecticut. 
W. E. Britton, Conn. Agr. Expt. Station, New Haven, Conn. 
A European Leaf-Miner of Birch. — During the summer of 1923, in several localities 
in Connecticut, leaves of the gray birch, Betula populifolia, particularly those at the 
tips of young sprouts, were being mined by some larva which made a broad “blotch” 
mine. Some material was collected that season but the adults were not reared. 
This season at my suggestion, material was gathered by Mr. R. B. Friend, Assistant 
Entomologist of this Station. On August 6th, Mr. Friend obtained a number of 
small sawflies of both sexes. Specimens were sent to Mr. S. A. Rohwer of the U. S. 
National Museum who has identified it, at least provisionally, as the European 
Fenusa pumila (Klug) which up to this time was not known to occur in the United 
States. Dr. Felt informs me that he has observed the work of this leaf-miner gener¬ 
ally in eastern New York State and also collected material. 
W. E. Britton, Conn. Agr. Expt. Station, New Haven, Conn. 
