The Ichneumon-Flies of American North of Mexico: Part 12 
Subtitle: Subfamiles Microleptinae, Helictinae, Cyllocerinae and Oxytorinae (Memoirs of the American Entomological Institute)
Publisher: Associated Publishers (Gainesville, FL)
Published: July 1992
Format: Hardcover
Number of pages: 470
ISBN-13: 9781566650526
Subjects: Insects & Spiders; Entomology; Nature; Science/Mathematics