INSECT ENEMIES OF EASTERN FORESTS 637 
Figure 197.—Juniper wood damaged by: A, Grub holes made by the carpenter bee 
Aylocopa sp.; B, burrow of the carpenter bee. 
LITERATURE CITED 
(1) ALEXANDER, C. P. 
1920. THE CRANE-FLIES OF NEW YORK. PT. II. BIOLOGY AND PHYLOGENY. N. Y. 
(Cornell) Agr. Expt. Sta. Mem. 38: 695-1133, illus. 
(2) ANDREWS, HE. A. 
1928. INJURIES TO VEGETATION BY MOUND-BUILDING ANTS. Amer. Nat. 62: 
63-75. 
(3) ANNAND, P. N. 
1928. A CONTRIBUTION TOWARD A MONOGRAPH OF THE ADELGINAE (PHYL- 
LOXERIDAE) OF NORTH AMERICA. Stanford Univ. Pubs., Univ. 
Ser. Biol. Sci. 6: 1-146, illus. 
(4) AsHMEAD, W. H. 
1893. A MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIDAE. U. S. Natl. 
Mus. Bul. 45, 472 pp., illus. 
(5) 
1901. CLASSIFICATION OF THE ICHNEUMON FLIES, OR THE SUPERFAMILY 
ICHNEUMONOIDEA. U.S. Natl. Mus. Proc. 23 (No. 1206) : 1-220. 
(6) 
1903. CLASSIFICATION OF THE GALL-WASPS AND THE PARASITIC CYNIPOIDS, OR 
THE SUPERFAMILY CYNIPOIDEA. Psyche 10: 7-138, 59-73, 140-155, 
and 210-216. 
(7) 
1904. CLASSIFICATION OF THE CHALCID-FLIES OR THE SUPERFAMILY CHALCI- 
DOIDEA. Pittsburgh Carnegie Inst. Mus. Mem. 1 (4): 225-551, 
illus. 
