Nov., 1909.] 
The Twig Girdle r. 
5 
No. of 
No. of 
No. of 
No. of 
Branch. 
Eggs- 
Branch. 
Eggs. 
1 
12 
11 
11 
2 
5 
12 
13 
3 
8 
13 
7 
4 
6 
14 
4 
5 
11 
1 .5 
8 
6 
9 
16 
3 
7 
18 
17 
16 
8 
14 
18 
12 
9 
5 
19 
6 
10 
20 
20 
17 
Pupae : 
The eggs laid in 
October, 1907, 
have not gone into 
the pupa state yet. May 30, 1908. Those laid in October, 1906, 
passed into the pupa state sometime between March and May 
of this year. The pupae are white. They vary in length from 
five-sixteenths to five-eighths of an inch. They lie in the gal- 
leries which were described above. 
Adults: About the first of June adults were found nicely 
hidden away in the galleries. On being removed to the open, 
they flew away with perfect ease. Further observations are 
now being made with the hopes that more light may be thrown 
on the daily activities of the adult form. 
In this work I received many valuable suggestions from Dr. 
W. F. Copeland and Dr. W. F. Mercer, to both of whom I feel 
deeply indebted. 
LITERATURE. 
1. Glenn W. Herrick. Oncideres texana Horn. Mississippi 
Agricultural Experiment Station Bull. 86. 
2. E. E. Faville and P. J. Parrott. Elm Twig-Girdler, Kansas 
State Agricultural College Bull. 77. 
3. A. S. Packard, Jr. Insects Injurious to Forest and Shade 
Trees. U. S. Entomological Com. Bull. 7. 
EXPLANATION OF FIGURES OF PLATES I AND II. 
Fig. 1 . Oncideres cingulatus. After Riley. 
Fig. 2. Elm twig. 
Fig. 3. Hickory twigs. 
Fig. 4. Showing the manner of cutting off the Linden branches. 
Fig. 4a. Large view showing details of cut. 
Fig. 5. Three Linden branches hanging ready to drop at the first 
wind. 
Fig. 6. Honey-locust twig. 
Fig. 7. A Honey-locust shrub on North Hill, Athens, O. Forty-five 
branches girdled. 
Fig. 8. A Honey-locust shrub on North Hill, Athens, O. Thirteen 
branches girdled. 
Fig. 9. Girdled twig of Persimmon. 
Fig. 10. Girdled Persimmon branches. Photographed near New Ply- 
mouth, Vinton County, O. 
Fig. 11. Girdled Persimmon branch showing transverse scars. 
Fig. 12. Girdled Elm branch showing transverse scars. 
