Hymenoptera of America north of Mexico : synoptic catalog, second supplement
Print Book, English, 1967
United States Government Printing Office, Washington, D.C., 1967
Agriculture monograph, no. 2
Catalog
584 pages ; 24 cm.
4235520
Introduction. pp. 4
Order Hymenoptera. pp. 6
Suborder Symphyta, by B.D. Burks. pp. 6
Suborder Apocrita. pp. 27
Corrections to catalog index. pp. 262
Index to new names proposed in the Supplement. pp. 521
Index. pp. 521
"February 1967."